Here's the thing about the 4.8 that most people don't realize..... They are cheap to race and replace. I helped a friend set up a Camaro for drag, with a little 4.8 and a big turbo(s475 I think). We have 4 engines in the garage for only $500 total, and one for free with valvetrain noise. Blow an engine, swap everything over(like cam and springs), and he's running the next day. Near me, the 4.8 usually gets $150-300, a 5.3 gets $400-600, and a 6.0 is $800+. That's a big price difference if you're just looking to have fun, but if it's meant to last then it's worth it for the torque.
@@michaelcoleman5258 I've been finding them on facebook marketplace, locally from friends, and sometimes u-pull yards. From most yards, it's more like double those prices..... Mid Ohio, if you're wondering.
I love my little 4.9 (3.810 bore, stock 3.267 stroke). Works really well with ported cathedral heads, TBSS intake, 92mm TB, and some quality tri-y headers. Not overly powerful, not too quick. Creates the same style of fun of old civics, but just a bit more than that.
I am going to be boosting a 4.8. I have 799 heads for it and doing an undermount with an inline intercooler. Express 2500 work van. Wish I had buddies to work on it with. My kid will do.
I used to read a lot of his articles and google even has parts of his books uploaded. Then I found the youtube channel and live streams. Killer content!
As many engines that I pull from pull a part for 300 bucks I have only acquired three 6 liters. One lq9 from an 02 Escalade and two Lq4’s from Denalis. I only get 5.3 motors because they are easier to sell. It’s a bolt in upgrade for the 4.8 guys and I advertise that. Quick tip. Most of those trucks are in there for bad transmissions but I only buy motors from crashed trucks. It was running when it crashed. Worst case is low oil pressure. The driver side head will always look dirty when you take off the valve covers but you can tell if it has been taken care off.
I find a lot of 6.0 lq4 engines up here in Canada but they usually have issues. One I recently got for $600 had a bad cam and lifters but was otherwise in good shape. I have 2 other bare blocks that need cam bearings installed for sale.
Got a wild Idea. Have done some research and hot rod magazine did an article titled the 350 chevy should have built. Its a 400 small block with a 327 crank. Get this the 4.8l ls has a factory stroke of 3.26 inches. The ls7 has a factory bore of 4.125. So a destroked big bore. The 377 inch small block which is a 400 with a 350 crank was a circle track monster. But the 327 crank was better with afr heads. Had diesel like torque on 85 octane actually. Well over 400 foot pounds through the entire rev range
It would be cool to see the comparison between a 7.3 godzilla versus an old school 460 and see what it would take to get the 460 to the level of the 7.3l godzilla motor.
Richard it would be cool to see you put a set of Dome Pistons on factory rods and factory bottom end on a 4.8 liter with good camshaft. See what power it make.
This video was made for me! I've be collecting parts for my build and this video had so much info I was looking for after looking into cam kits and junk yard motors.
Hey Richard,good test!!I was very anxious to see the NSR cam in a 5.3 so a big thanks.also liked the test on the nearly stock 5.3 and the 6.0 with stage 1,2 and 3 cams
What about the old school inlines? The GM 250 vs the Ford 250 vs the 225 Slant 6. The Ford 300 vs the GM 292. The GM Inline 4.8 vs the V6 4.8 vs the V8 4.8. The 2 GM inlines the 4.1 vs the 4.2. And maybe what can be done to the old school stuff to make them breath some more fire like their newer brethren. Compare and contrast?
Love the work, You guys are very lucky in what you pay for a (LS) a LY6 long motor here what has over 200,000miles is $5500.00 my dollars so $3130.00usd today.
Now that I own (and am modifying) my 22 Maverick, I'd like to see you do some tests on the 2.0T and 2.3T ecoboosts. So far this motor has been pretty respectable!
Richard, Please be willling to answer this question. I say that LSA of a cam and LCA are not the same. LSA is permanent and can't be changed. LCA is adjustable and what you get when degreeing/indexing a cam. And LSA means the same no matter what country. Correct? I mean like, UK doesn't use LCA to mean LSA do they?
@@richardholdener1727 Thank You. But I know and understand that part. But do other countries such as UK or Australia use LCA and LSA interchangeably? Have you ever heard of anything like that?
Always love your videos!!. So grateful there’s someone to do it for us to show where to spend our money! Any thoughts on testing the VK56 engine? It’s the DOHC 5.6L V8 out of the Nissan titans / armadas? Much love!
Can’t wait to see more L33 stuff. That’s what I’m leaning towards to put in my Isuzu pickup. I like the idea that the L33 is also lighter than the iron blocks
It's basically an lm7, but aluminum with 4.8 pistons, 243 heads, and a slightly different cam. If you want to build it up, an lm4 might be cheaper to find. It's still aluminum, but the same as an lm7 in every other way..... Either way, anything in these tests for a 5.3 applies.
@@doc221978 Except that the LM4 has dished pistons, a cam with less lift and duration, pressed pins versus floating, front sump instead of a rear sump but other than that... Well, they both have an aluminum block and 5.3l of displacement.
@@Warloch1 @Warloch1 you're probably right about the sump, I've never built an l33. I did say if it's to build up though, and that it's an aluminum version of the lm7. I also listed the cam, pistons(same PN as a 4.8), and heads. Almost every l33 I find is at least $1,200, and an lm4 is about $600. Depending on his goals, it could be a viable option. As for gen 3/gen 4 internals, at the power most people push it's negligible. It's coming into play at well over 1k hp. Also, around 04 or 05, the lm7 and LS motors in general received the gen 4 internals..... And I would replace the rod bolts on either. I have a few stories about that. Now I'm going to look up the l33 oil pan and sump. I don't remember the block being different, but I'm not sure.
All things being equal (and appropriately sized, as far as turbo), more displacement is more power. Pretty sure the tune and valve springs on the 5.3 will negate any benefit to the percieved rev-happiness of the 4.8
In other words, dollar for dollar, 5.3 wins. You can make the 5.3 rev up even better and make more top end power than the 4.8 with minor valve train mods, proper wastegate sizing, tune, etc.
I'm doing a truck Norris in my 07 Tahoe..got heads done w seals and good springs,560...I have to get 2 bolts removed from one head,,,exhaust....only problem I'm going to have is getting everything in to 0 lash...never done...but watching you for a while and done everything be so far by your video's...batteling diverticulitis at the moment so can't get much done r now....is it that much of a pain to get that right...I can't afford much Xtra...getting some nice weather this week in Rhode island so I'm hoping to get done... Everything so e kk see be went according to plan,heads,lapped Cleaned,seals,springs...got them on,cam in,chain...just pushrods,rockers and the lashing.....I'm pretty mechanical...for some reason I'm a Lil shy on this..,,thx for your help on doing all of this....
4.8L vs the old school 283 small block v8. I own both engines and love how they both rev. Owner and huge fan of both engines. Time for a shoot out of the ultimate under dog!
I have an 02 4.8/5.3 cast iron block with the 826 for heads that came in the block what the heat range on the heads bre they go bad reason I ask my engine over heated for 30 minutes heading to work lost water to the transmission
I would like to know the rated power of the tested engines - I know the Numbers are not comparable with headers, ecu and no auxileries, but it would give a hint of where power/tq goes from and to. In Denmark where I live the regulations are quite strict going over 20 % power increase. 😢
Can you test a 408/416 4" stroker with stock ls3/l92/square port heads and intake versus a stock displace 6.0/6.2 with aftermarket heads? Both combos with a similar camshaft? My guess is that the 408 with the stock square port heads and intake will make more power than a stock displacement 6.0 with aftermarket heads but I can't prove that. Doing a 408 is attractive/cost effective (to me at least) for someone who needs to do a rebuild anyway.
@@jean-philippegagnon3383 well you can put a few things in a 4l60e if you wish, my wifes 2001 chevy 1500 with a 5.3 and a btr stage 1 truck cam has over 200k miles on the original 4l60e transmission, it's a daily
Hey Richard. Would you be able to do some stock bottom end ls1 turbo testing. I personally own an ls1 Holden here in Australia and I want to basically find out when they go bang essentially and how much power can be made safely before they go bang
Can You gain power by adding headers 3” Exhaust an intake an throttle body with the stock tune ??? Would b a good video. I have all that done and the Diablo sport predator two tunner on my 03 suburban an she feels peppy lol
As a response to your comment about not wanting to rev past 6500 on stock valve springs. I have a turbo 4.8 that runs 18 PSI everyday and shifts at 6800. Aside from head studs the engine is stock and it is tuned on 87 octane Believe it or not.
smaller car smaller engine bigger car bigger engine bigger engine more torque more burnouts smaller engine less torque less wheelspin notice how both engine's with same cam upgrade, the torque curve falls off in a straight line at the same rate, like 2 railroad tracks. more displacement moves the torque curve up and to the left more camshaft moves the torque curve up and to the right boost moves the torque curve UP!
Will a 2004 awd 4l65e bolt right up and run with no problems to a 2001 5.3 z71 manual Lm7 ? I know I have to swap my transfer case onto the transmission I just want to make sure it will work if anyone knows ?
@@reyperez3424 thank you Rey. I have manual ( floor shifter ) z71 5.3. Mildly build top end just want a lil better transmission. The donor is coming from a 2004 6.0 awd Denali. The one on right now is stock 60e and doesn’t move or get up if you know what I’m saying
@@richardholdener1727 of course.. what was I thinking, there’s the answer 7HP . Now the question is, is it worth spending the extra coin on springs and pushrods for 7 hp for a street machine. I’d say yes if the engine has high mileage. 😎
Seems like running the 4.8 with stock springs and not revving out really handicaps it's only strength in this test? Would love to see the same test but with a cam made to take advantage of the higher revs and springs to match.
Have you tried running the Truck Norris cam that doesn't need springs with boost yet? I want to see if the rev limit will drop because of the extra boost pressure behind the valve.
If u turbo charge a engine other then valve springs, tuning is there anything else to consider like need specific heads cam, intake best used in boosted engine.
Here's the thing about the 4.8 that most people don't realize..... They are cheap to race and replace. I helped a friend set up a Camaro for drag, with a little 4.8 and a big turbo(s475 I think). We have 4 engines in the garage for only $500 total, and one for free with valvetrain noise. Blow an engine, swap everything over(like cam and springs), and he's running the next day.
Near me, the 4.8 usually gets $150-300, a 5.3 gets $400-600, and a 6.0 is $800+. That's a big price difference if you're just looking to have fun, but if it's meant to last then it's worth it for the torque.
What junkyard you buying those motors at?
@@michaelcoleman5258 I've been finding them on facebook marketplace, locally from friends, and sometimes u-pull yards. From most yards, it's more like double those prices..... Mid Ohio, if you're wondering.
Gasoline engines of any make or model are $260 including the core charge at my local yard
Best part is the 4.8 never had DOD BS
I love my little 4.9 (3.810 bore, stock 3.267 stroke). Works really well with ported cathedral heads, TBSS intake, 92mm TB, and some quality tri-y headers. Not overly powerful, not too quick. Creates the same style of fun of old civics, but just a bit more than that.
Gears will really get them going
I am going to be boosting a 4.8. I have 799 heads for it and doing an undermount with an inline intercooler. Express 2500 work van. Wish I had buddies to work on it with. My kid will do.
Love your work Richard, been reading and now watching you for years. Thanks for all the work and everything you teach us!
I'm so glad I found your channel.
Ohh just wait, your about to go deep down the HOLDENER LS WORMHOLE.
I used to read a lot of his articles and google even has parts of his books uploaded. Then I found the youtube channel and live streams. Killer content!
Bro go back and read the articles he was writing back in the day. They are just like the videos but with way more information
As many engines that I pull from pull a part for 300 bucks I have only acquired three 6 liters. One lq9 from an 02 Escalade and two Lq4’s from Denalis. I only get 5.3 motors because they are easier to sell. It’s a bolt in upgrade for the 4.8 guys and I advertise that. Quick tip. Most of those trucks are in there for bad transmissions but I only buy motors from crashed trucks. It was running when it crashed. Worst case is low oil pressure. The driver side head will always look dirty when you take off the valve covers but you can tell if it has been taken care off.
You just proved what we already knew, there is no replacement for displacement!
5.3 is a great motor, 4.8 friend had one ran good to love LS engines
More is more!! Like the old saying goes, "there's no replacement for displacement!!"
Honestly just asking a question on the comment section you responded and been lots of help over the years thxs again
I always try to answer
I find a lot of 6.0 lq4 engines up here in Canada but they usually have issues. One I recently got for $600 had a bad cam and lifters but was otherwise in good shape. I have 2 other bare blocks that need cam bearings installed for sale.
Got a wild Idea. Have done some research and hot rod magazine did an article titled the 350 chevy should have built. Its a 400 small block with a 327 crank. Get this the 4.8l ls has a factory stroke of 3.26 inches. The ls7 has a factory bore of 4.125. So a destroked big bore. The 377 inch small block which is a 400 with a 350 crank was a circle track monster. But the 327 crank was better with afr heads. Had diesel like torque on 85 octane actually. Well over 400 foot pounds through the entire rev range
Stupid
This channel deserves 1 million subs
ONLY 1M?
It would be cool to see the comparison between a 7.3 godzilla versus an old school 460 and see what it would take to get the 460 to the level of the 7.3l godzilla motor.
Back to basics, local pull a part build for the blue collar dude.
Richard it would be cool to see you put a set of Dome Pistons on factory rods and factory bottom end on a 4.8 liter with good camshaft. See what power it make.
those vids are up-the last 4.8l I had was equipped with je dome pistons-tested lots and lots of stuff with that motor
This video was made for me! I've be collecting parts for my build and this video had so much info I was looking for after looking into cam kits and junk yard motors.
Hey Richard,good test!!I was very anxious to see the NSR cam in a 5.3 so a big thanks.also liked the test on the nearly stock 5.3 and the 6.0 with stage 1,2 and 3 cams
The 5.3 of course!!
Ok Richard, you're an engine guy...
You seem to like BOOST
Let's see you do a Hayabusa engine.
They can be real beasts!
What about the old school inlines? The GM 250 vs the Ford 250 vs the 225 Slant 6. The Ford 300 vs the GM 292. The GM Inline 4.8 vs the V6 4.8 vs the V8 4.8. The 2 GM inlines the 4.1 vs the 4.2. And maybe what can be done to the old school stuff to make them breath some more fire like their newer brethren. Compare and contrast?
Love the work, You guys are very lucky in what you pay for a (LS) a LY6 long motor here what has over 200,000miles is $5500.00 my dollars so $3130.00usd today.
I'm going to need AMC content please
Lol bought by Chrysler
Now that I own (and am modifying) my 22 Maverick, I'd like to see you do some tests on the 2.0T and 2.3T ecoboosts. So far this motor has been pretty respectable!
Richard, Please be willling to answer this question. I say that LSA of a cam and LCA are not the same. LSA is permanent and can't be changed. LCA is adjustable and what you get when degreeing/indexing a cam. And LSA means the same no matter what country. Correct? I mean like, UK doesn't use LCA to mean LSA do they?
lsa and lca are different, lsa is fixed once the cam is ground
@@richardholdener1727 Thank You. But I know and understand that part. But do other countries such as UK or Australia use LCA and LSA interchangeably? Have you ever heard of anything like that?
Always love your videos!!. So grateful there’s someone to do it for us to show where to spend our money! Any thoughts on testing the VK56 engine? It’s the DOHC 5.6L V8 out of the Nissan titans / armadas? Much love!
overseas great builds and tune with this engine pretty stout.
RPM capable 4.8 has a Rod/Stroke ratio 1.92 😳😳😳. Simply doesn’t get much stronger!
5.3/6.0 have a good ratio of 1.68 👍
the rpm potential of the motor is the valve train-not r/s ratio
Do Ford Ecoboost engines!! Do Jaguar straight 6 engines!!!!
Would love to see a test on the 4.8 5.3 with the Tick Performance Towmax Stage 1 and 2
Huh, turns out when all things are equal bigger motors make more power.
🤔
Shocking isn’t it
Can’t wait to see more L33 stuff. That’s what I’m leaning towards to put in my Isuzu pickup. I like the idea that the L33 is also lighter than the iron blocks
It's basically an lm7, but aluminum with 4.8 pistons, 243 heads, and a slightly different cam. If you want to build it up, an lm4 might be cheaper to find. It's still aluminum, but the same as an lm7 in every other way..... Either way, anything in these tests for a 5.3 applies.
@@doc221978 Except that the LM4 has dished pistons, a cam with less lift and duration, pressed pins versus floating, front sump instead of a rear sump but other than that... Well, they both have an aluminum block and 5.3l of displacement.
@@Warloch1 @Warloch1 you're probably right about the sump, I've never built an l33. I did say if it's to build up though, and that it's an aluminum version of the lm7. I also listed the cam, pistons(same PN as a 4.8), and heads. Almost every l33 I find is at least $1,200, and an lm4 is about $600. Depending on his goals, it could be a viable option.
As for gen 3/gen 4 internals, at the power most people push it's negligible. It's coming into play at well over 1k hp. Also, around 04 or 05, the lm7 and LS motors in general received the gen 4 internals..... And I would replace the rod bolts on either. I have a few stories about that.
Now I'm going to look up the l33 oil pan and sump. I don't remember the block being different, but I'm not sure.
Find a short block l33 and put 706 heads on it. It’ll make great all around power
@@doc221978The L33 is rear sump. The LM4 is front sump.
All things being equal (and appropriately sized, as far as turbo), more displacement is more power. Pretty sure the tune and valve springs on the 5.3 will negate any benefit to the percieved rev-happiness of the 4.8
In other words, dollar for dollar, 5.3 wins. You can make the 5.3 rev up even better and make more top end power than the 4.8 with minor valve train mods, proper wastegate sizing, tune, etc.
Not to mention the 5.3 LS you can put 317 heads on them and they have more grunt
I'm doing a truck Norris in my 07 Tahoe..got heads done w seals and good springs,560...I have to get 2 bolts removed from one head,,,exhaust....only problem I'm going to have is getting everything in to 0 lash...never done...but watching you for a while and done everything be so far by your video's...batteling diverticulitis at the moment so can't get much done r now....is it that much of a pain to get that right...I can't afford much Xtra...getting some nice weather this week in Rhode island so I'm hoping to get done... Everything so e kk see be went according to plan,heads,lapped Cleaned,seals,springs...got them on,cam in,chain...just pushrods,rockers and the lashing.....I'm pretty mechanical...for some reason I'm a Lil shy on this..,,thx for your help on doing all of this....
checking pushrod length takes 5 minutes
4.8L vs the old school 283 small block v8. I own both engines and love how they both rev. Owner and huge fan of both engines. Time for a shoot out of the ultimate under dog!
a stock lr4 4.8l makes 40 hp more than the best factory 283
@@richardholdener1727 what would the engine code be for my 4.8 in my ‘07 sierra classic?
No wonder my truck is so slow. Idk why a 4.8 is an option for a 4 door truck. But hopefully my trans won’t blow up again if I put a nsr cam
Love these shorter info vids!!
Longtime subscriber! Just wishing for a VK56 video!
Problem is that the LS platform is the best engine period
Amen to loving THEM ALL!!
No reason to 4.8 if you can 5.3. And 6.0 is even more fun.
I have an 02 4.8/5.3 cast iron block with the 826 for heads that came in the block what the heat range on the heads bre they go bad reason I ask my engine over heated for 30 minutes heading to work lost water to the transmission
I service FedEx fleets I can say with a surety I can't count the number of 4.8 I've seen with over 500,000 mi on the long block... Not so with 5.3s
Richard can you please do an intake manifold test on 6.4l Dodge Hemi???
I don't have either of those
It’d be awesome to see a rover v8 build. Mgb guy here
Richard thank you for making this video, it was great
It's like comparing a 427 to a 454 same bore to different stroke.
I would like to know the rated power of the tested engines - I know the Numbers are not comparable with headers, ecu and no auxileries, but it would give a hint of where power/tq goes from and to. In Denmark where I live the regulations are quite strict going over 20 % power increase. 😢
285-305 hp rated (the rating depends on exact vehicle)
every engine should be a LS
I'm still partial to the old school GM motors
Both great but I mean 6.0 is the way to go 👌
6.6 L8T
Watched Fastest car which had a GTO with 1, they are bad ass.
Looking forward to the 3800 BB
Can you test a 408/416 4" stroker with stock ls3/l92/square port heads and intake versus a stock displace 6.0/6.2 with aftermarket heads? Both combos with a similar camshaft?
My guess is that the 408 with the stock square port heads and intake will make more power than a stock displacement 6.0 with aftermarket heads but I can't prove that. Doing a 408 is attractive/cost effective (to me at least) for someone who needs to do a rebuild anyway.
a stroker version will have much, much more average power even if peaks were similar
Can we get some Subaru EJ engine content?
Maybe even a Big Bang video with them!
Would love to see an EJ vs FA big bang
Bro if I have a 4.8 in my ls swapped tahoe ima just pull it out. I should of looked at the casting numbers before puttin them in
If I was just after mpgs and that's the main thing I wanted, then I would get a 4.8 with a btr torque cam and 4l60e and just enjoy the car.
Why a 4l slippy e get a 4l80
@@jean-phillipegagnon2120 a 4l60e is an ok transmission if your not dogging it, reread what my comment said,
@@jean-phillipegagnon2120 60E is fine below 400 HP, and in lighter vehicles.
@@davidcunningham00 for sure but hard not to wanna give it the beans with that sweet ls sound 👌
@@jean-philippegagnon3383 well you can put a few things in a 4l60e if you wish, my wifes 2001 chevy 1500 with a 5.3 and a btr stage 1 truck cam has over 200k miles on the original 4l60e transmission, it's a daily
No replacement for cubes when induction is the same
nice video! love the live sessions
I literally imagine and search
AND Richard deliver
Wait you moving to fast how is that possible. You can put cam in without removing heads and lifters? Please help
You can swap a cam in an LS without removing the heads
Would love to see 392 hemi stuff on this channel
5.7l and stroker stuff is up
@@richardholdener1727 I saw that. I really enjoy your channel. Keep up the quality content
We need some ecotec love though!
Maybe a LNF OR LSJ OR LDK etc. etc.
Why was the 4.8 was missing a head bolt?
please add spanish subtitles regards Eric
Great test, have you ever considered testing the ct525 camshaft from gm or the high lift version of that from ws6 store? 226/236@ 0.050
see the elgin cam test
Does the 4.8 make its NA peak power at a higher rpm then the NA 5.3 because thats where the piston speed actually match or are in the same ballpark?
The 8L :)
Richard have you done a video on outing 4.8 flat tops in a 5.3?
I have two 5.3ls that cam factory with flat tops (L33 & LH6)
5.3 great
you need to do a Cleveland Big Bang motor twin turbo that would be dope
Hey Richard. Would you be able to do some stock bottom end ls1 turbo testing. I personally own an ls1 Holden here in Australia and I want to basically find out when they go bang essentially and how much power can be made safely before they go bang
you can go to 800-900 with ring gap
@@richardholdener1727 thank you so much for replying 🙂. That's actually seriously good looks like I'm doing sbe turbo ls1
What year 5.3 should I look for ? I’m planning to swap my g body and ad a turbo in the future with the proper cam and valve train .
any year works, a gen 4 is slightly stronger
"CHUCK NORRIS" I heard ... game over lol
truck norris
Can you say. No brainer. ?? Thanks Richard
Can You gain power by adding headers 3” Exhaust an intake an throttle body with the stock tune ??? Would b a good video. I have all that done and the Diablo sport predator two tunner on my 03 suburban an she feels peppy lol
I don't run a stock ecu on the engine dyno with a stock tune
@@richardholdener1727 i no was just thinking if there was a way then everyone that does bolt ons would no
Can you give me any info on a 2000 6.0 liter LS has cast heads, couple people told me it should have a longer crank I’m not sure
check for a spacer on the back of the crank
As a response to your comment about not wanting to rev past 6500 on stock valve springs. I have a turbo 4.8 that runs 18 PSI everyday and shifts at 6800. Aside from head studs the engine is stock and it is tuned on 87 octane Believe it or not.
Whats going on with the k24 big bang and barra content?
Do you like Rotary engines? 😊
yes-favorite is Gen 3 RX7
Have you ever had the lifters drop down on an ls when swapping cams?
yes
I wonder how much of the extra power from the 5.3 vs 4.8 is the higher compression
it's displacement
@@richardholdener1727 about how much does a typical 5.3 make vs a flat top 5.3? are we talking 5-10hp?
Hi Richard. What if we take a 4.8 and bore it out to 3.898 - 3.903 and install LS1 pistons? Would it be worth it?
it will make more power
@@richardholdener1727 but is it worth the $$ VS the L33?
Can you do a Big Bang on a 2bolt sbc 350
Time to go past stock piston to valve clearance on these things yet?
with new pistons?
Yes sir. Big cams😅
I know gen 4 rods are the way to go, but have you ever tried the gen 5 lt rods in an ls?
i have not
@@richardholdener1727 think that would be something of interest? They certainly look a tad beefier then the gen4
the gen 4 rods went to 1543 hp so I think we are good
What is the biggest cam you can put in a 4.8?
mid 230s at .050 on the intake
@@richardholdener1727 how about a 234/239 115+5
smaller car smaller engine
bigger car bigger engine
bigger engine more torque more burnouts smaller engine less torque less wheelspin
notice how both engine's with same cam upgrade, the torque curve falls off in a straight line at the same rate, like 2 railroad tracks.
more displacement moves the torque curve up and to the left
more camshaft moves the torque curve up and to the right
boost moves the torque curve UP!
Get a HEMI 💪🏽
Will a 2004 awd 4l65e bolt right up and run with no problems to a 2001 5.3 z71 manual Lm7 ? I know I have to swap my transfer case onto the transmission I just want to make sure it will work if anyone knows ?
Z71 manual? Or it’s 4x4
Z71 are electronic 4x4
4x4 trim is still manual
But it should work
@@reyperez3424 thank you Rey. I have manual ( floor shifter ) z71 5.3. Mildly build top end just want a lil better transmission. The donor is coming from a 2004 6.0 awd Denali. The one on right now is stock 60e and doesn’t move or get up if you know what I’m saying
It'll work. I have an 06 4L65E from an H2 in my wife's 02 Z71
@@georgiaboy1579 so it will fit my 5.3? I heard something about the 65e only fitting 6.0? Is that true
Wondering how much HP and torque is being left on the table between the truck Norris NSR and the Truck Norris that requires valve spring upgrade.
watch the nsr vs tn video
@@richardholdener1727 of course.. what was I thinking, there’s the answer 7HP . Now the question is, is it worth spending the extra coin on springs and pushrods for 7 hp for a street machine. I’d say yes if the engine has high mileage. 😎
Seems like running the 4.8 with stock springs and not revving out really handicaps it's only strength in this test? Would love to see the same test but with a cam made to take advantage of the higher revs and springs to match.
the 4.8L won't rev any higher than the 5.3L-the valve train dictates rpm
Are these two engines the same physical size? Width, height and length?
The only difference between a 4.8 and a 5.3 is the stroke length.
and rod length
@@richardholdener1727
Lol, how could I forget. We all know how much of a difference that makes!
Have you tried running the Truck Norris cam that doesn't need springs with boost yet? I want to see if the rev limit will drop because of the extra boost pressure behind the valve.
IT WILL BE FINE UP TO 6500
Do you have any used engines for sale?
no sir
If u turbo charge a engine other then valve springs, tuning is there anything else to consider like need specific heads cam, intake best used in boosted engine.
a stock cam will work with a turbo, an after market cam (like shown here) makes more power na and boosted
What percentage of HP would you lose with all the accessories on the motor? Alternator, water pump, etc…
please see accessory video
Bigger is always better🤣
Nissan VK56 Titan motor??
Starter position is silly
And maybe if they share the same heads
same test was run with an lm7-same results with the same heads
LM7 and LR4 came with 706 or 862 heads
I see thanks for the reply was quite curious also have been looking around to see if you did a video on solid lifters versus hydraulic
Where's the rotary stuff Richard ? How can you call yourself an engine guy!!
I'm a motor guy
@@richardholdener1727 Or a 'rotor guy' haha
@@dilsher12 in that case lets run a Radial engine and a Gas Turbine shall we?
@@shadowopsairman1583 I'm all for it I'd love to see both of them tested lol
CAN YOU DO THE 2005 JAGUAR S-TYPE 4.2 SPORT MOTOR I HAVE AN S-TYPE AND I LIKE TO KNOW WHAT CAN I DO AND NOT DO
too much ls content on this channel lately. time to change it up