Junkyard Iron Block Gets EFI and Hits The Dyno - Engine Power S1, E2
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- čas přidán 27. 06. 2024
- The team assembles the long block, a New EFI top end and then dynos the 4.8.
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PARTS USED IN THIS EPISODE:
EBC Brakes: Greenstuff 2000 series for sport compact and hot hatches, Greenstuff 6000 series for entry level truck and SUV upgrade, Greenstuff 7000 low dust Truck and SUV Brakes
More Info: pntv.us/pn_pt_60
Edelbrock: Intake Manifold, Performer RPM, Carbureted, Aluminum, Natural, Dual Plane, Chevy, 4.8, 5.3, 5.7, 6.0L
More Info: pntv.us/pn_pt_54
Edelbrock: Supercharger System, E-Force Competition, Roots, Black Powdercoated, Intercooler, Chrysler, 6.1L, Kit
More Info: pntv.us/pn_pt_59
Falken Tires: Tire, Azenis RT-615K, 315/30-18, Radial, Directional, W Speed Rating, Blackwall, 1,653 lbs. Max Load, Each
More Info: pntv.us/pn_pt_58
Holley: Carburetor, Gasoline, Model 4150, Universal, 600 cfm, 4-Barrel, Manual Choke, Dual Inlet, Silver, Each
More Info: pntv.us/pn_pt_52
Holley: Carburetor, Street Avenger, 570 cfm, Square Bore, 4-Barrel, Vacuum, Electric Choke, Silver, Each
More Info: pntv.us/pn_pt_51
Holley: Terminator EFI Engine Management System, Speed Density, 4 Barrel, Square Bore, 950 cfm, 250 hp to 600 hp, Kit
More Info: pntv.us/pn_pt_53
MSD Ignition: Ignition Controller, 2-Stage Rev Limiter, 1-Stage Retard, Vacuum Advance Curve, for Carbureted LS2/LS7 Engines
More Info: pntv.us/pn_pt_55
Proform Parts ( Specialty Auto Parts U.S.A., Inc.): Valve Cover, Cast Aluminum, Black Crinkle, Chevrolet Logo, Chevy, Small Block, LS, Pair
More Info: pntv.us/pn_pt_56
Royal Purple: Motor Oil, XPR Racing Oil, Synthetic, 5W30, Quart, Each
More Info: pntv.us/pn_pt_57
Goodson Shop Supplies: EPL-120 Engine Pre Lube Tank, 12QT.
The Industrial Depot: The Industrial Depot - Fasteners, Hardware, and Shop Supplies
WD-40: WD-40 12 oz. Aerosol Lubricant - Auta a dopravní prostředky
The Holley Terminator is a self-learning system; a learning computer, sent back in time to save John Connor!
@@mctigmctiggy1475 It's not a TOOMA!
We got skynet by the balls now
Torque wrench...
Phased Plasma rifle in 40 watt range.
Bring me the Holly if you want to live,the machines are coming
Back in 2012 when I built my 6.0.
A Holley rep said they would never build a harness to plug the Terminator TBI into their LS harness. So we made it to work.
I was likely one of the first in the world to install a Terminator TBI / HP ECU/ Edelbrock dual plane combo on an LS.
Around 2015 Holley started making the harness to do that.
Thats frigging awesome
@@bentleyclouse3311 It looks cool but the intake performs no better than a truck intake. If I was to do it again I’d go with a FAST intake. 50 hp more.
@@generalsixty2133 wow 50hp is huge. I actually believe your story and I'm impressed. Wished you was my neighbor!!! Lol in middle Tennessee no one does LS stuff. Not in my area.
@@bentleyclouse3311 You can always buy a GM that came with an LS from the factory. Then do bolt on upgrades. Easier than a swap into an old car. It’s all just time, money and space to do it. Have fun!
I always like more cubes because the numbers are always better but this 4.8 is impressive
Joe nice work , miss the shows on TV . I am a oldman not real up on this new stuff, keep up the good work.
Good ol' Joe. I always liked him.
Same
I started watchin horse power as a kid!! Always liked Joe, he has done afew other tv programs aswell!
He's a prick in person
An Aussie living in Spain. Love watching your vids, guys 🙌🏼 I love watching your work, Tommy, Joe, Mike, Pat, Ryan, Kevin, LT, Austin... I know I'm missing a few 😅 keep it up
Put another shrimp on the barbie eh Kangooroo sport eh you wanna beer mate FOSTERS is the one u want eh champ watch out for drop bears and crocodiles eh mate
Not much muscle or pony in Spain I'd imagine.
@@billyhellboy6138 Victoria Bitter is drank more than Fosters
I'm a Ford guy currently driving a coyote V8, but I admit I've got a big love for pushrod chev V8s 🤫
I know what you mean brother. Also own a 5.0 and since I love LS power also own a single cab Silverado with a 448 stroker. And for last project I jst bought a 6.0 with tranny for complete swap on a mustang 2005 v6..... Why hate when you can own both!!
@@mikec9112 yes you are right. It is a subaru boxer...
The LS with the Holly TBI and MSD box is a really nice set up. Pretty trick having a mounting point on the intake for the MSD box. It would be a clean looking install. I can see this being a nice swap for the GMT400 trucks.. allowing an easy stock computer delete. Tying it into the dash harness wouldn't be that difficult either. It would be on the expensive side.. but dropping this into a cherry or restored car/truck would be worth it. LS power and reliability with a simple self learning TBI.
Watch out when those "Secont Dairies" open up. They're known to make much more power than regular ol' secondaries!
😎
The 600 CFM carb only cost three hunnert and ninety fi' dollars
I’ve done it in 24 hr and thought I was the shiznit. 1h41m is impressive 👍
It took my brother and I a week for a clutch job and I thought the same.
when I was racing under sponsorship I had my pit crew swap my qualifying engine to race engine. In 36min in a competition we had. Just to be clear I wasn’t involved with it. I just had to watch and hope we won. It was a competition to give our crews lime light for once. It’s actually a lot difficult than people think. They had to work around the ridiculous amount of pipe that’s all one giant piece connected into the roll bar to withstand 180mph impacts.
Great video. I find my self now at 37 years with a 68 AMX looking for a motor option. This video was very helpful
THIS WAS FILMED 🎥 IN 2013
they never tell you that so I will 🤫😁
how do you know that
Would love to have their rock bottom budget lol
Same. And their skill. I dont know much so it would be nice to have a fraction of their knowledge
Don't forget installed power is going to be quite a bit less than those dyno numbers.
Every time I come back to this video, I realize more and more that this is VERY far from a budget build. Those valve covers alone are over $400, and those coil pack brackets are 179. That harness is 1k+. No idea how they come up with budget when there's nearly $5,000 in new parts alone here.
@@MazzaFiveOneFourbudget for the guys running 60k engine builds
will probably never even touch an american engine, but god dam do i enjoy watching this show. so well presented, well done boys!
I'll send you one
WHAT A SWEET SETUP !!
572 Crate motor with high rise Holly Port Fuel Injection Hedman Headers long tube . 1060 hp in a 1975 GMC pickup . I love it.
....and about 5 miles per gallon driving like a granny.
@@joshtheking1772 and $17,000!!
I'm have to stop watching this channel, it's going to get me back into my old hobby.
Why did u stop?
This Makes me wanna start a new hobby lol
@@raymondguzman5083 Life sort of got in the way, I moved to Manhattan from Connecticut for my job, sold my '71 Z28 and here I am 40 years later watching this channel and dreaming about a nice '69 Camaro with a big block. I will say I missed the rush of my race car every day of my life.
Keeps me out of trouble
I got an 81 camaro, and we just started our engine swap a couple days ago, we got the old 267 out and we got a rebuilt and bored over 305
Man I love this show
Nothing like EFI 😎
They set this dyno test up to sell Holley EFI systems. They crutched this motor using 570 and 600 cfm carburetors. I don't care what the carburetor cfm formula says, an engine with heads that breathe as well as the LS6 heads is going to choke on a 600 cfm or smaller carburetor. That's one reason why the 1000 cfm throttle body made 17 more horsepower!
Best channel on CZcams
Hey guys, I wish you would do a dyno video showing how having improperly adjusted valves (too loose, too tight) affects performance.
I believe Richard holdener does something like that check it out.
Richard Holdener is THE man when you are interested in the before and after installation of performance parts. I think he has covered everything I have wanted to know.
Luv the show guys! I have an '06 aluminum block, aluminum head, 8th digit "B", 5.3. Supposedly 340 h.p. 170,000 miles. Runs excellent! Would really appreciate some h.p. upgrade suggestions. Thanks...
THANK YOU SO MUCH!!!! A MUST-WATCH!!!! I LOVE MY HOT ROD FAMILY!!!! SO MUCH FUN!!!!! THANKS FOR SHARING & I LEARNED SO MUCH!!!!
Ford 300 build part two next???!!!
THANK YOU SO MUCH. SO INSPIRATIONAL!!!!
Wong on the knock sensors location and 24x/58x. Some were still 24x with the knock sensors on the side of the block.
Just tuned back in after a while away. When did the ‘blonde’ conversion happen? 😂
Hey that’s me @ 14:13. Before CZcams fame! Lol
Come on guys, y'all know that engine is good to 7,000 rpm if you have the right fuel in it
91 or 92 octane maybe? They used 89.
Nice power but do you plan on doing a 4.6 l sohc pi motor
I thought the Ls builds needed some kind of crank case ventilation system.
Red team looked clean and organized in appearance, I knew they were whipping the two hillbillies
I have a 71 Camaro that i did a 4.8 ls swap in im using the self tunning efi im Makin a tad over 440 hp i did a full rebuild 30 over bore long tube headers i used aftermarket heads
My only question is the oil sensor on the back of the engine. What did you do to bypass that?
All ls engines need is CAM I bet the (right)cam would ad 60 or more
Sometimes lots more.
On the 570 carb what were the jets sizes and squirter size? What was the timing curve on that run? What was the AFR also?
Stock 4.8 that breaths. I wonder where the fall off would be. They didn't really zing it that far. Farther than you'd need on the street but still.
I've built a 16.51 to 1 compression British Ford Essex V6, 3L swept volume. I think it will make more HP on E100 than any comparable I-6s and many V8's and still have better Emissions
Put a Holley high ram intake and sent it to 7k+ rpm and you’ll be in the 400+hp range, 4.8s love to rev
would they last in a street application shifting 7k everyday???
@@ragimundvonwallat8961 yes as long as upgrade the valve train
@@eternalthread7846 oh well if the bottom end can handle it all stock thats a great cheap little set up
@@ragimundvonwallat8961 the bottom ends in these things crazy strong and the 4.8 is the best out of all of the truck motors for high rpm use bc of its short stroke
@@eternalthread7846 if id be a gm guy i would swap one of those puppies into a 80's camaro instead of figthing with those useless 305.... dont tell me those dont suck, they always have and always will lol =P
those 4.8 look like gold in comparison
Just Tune that bad boy, and save money
Man...a 944 or 928 with a blown motor plus one of these equals tons of fun and a decent sleeper. Or a Regal :-)
I have a blown engine 944 that was supposed to get an LS swap. But, I turn 70 this year and have to many other projects to do. The 944 weighs 2600 lb, but the 928 weighs in at about 3800lb. But, I will admit that the 928 is a really nice Hiway cruiser.
@@johnherdener6801 928 were nice, i wish i could own a fully stock one
This setup is great for wowing with the open hood at a cruise night. But it'll be only old dudes who aren't familiar with LS engines and high school kids who haven't seen the other hundred CZcams videos where people are making way more power with a $500 junkyard pulled motor set.
"Gets efi" uh bud, the ls came with mpfi lol
Yeah they pulled off a better system to put on some junk efi conversion kit. wtf
Was just thinking the same thing
not everyone likes the look of the factory intake manifolds. A lot of people don't want to "mess" with efi so they go carbs bc it's what they know.
@@scottgas1299 Might as well keep the stock small block if you're not willing to learn something new. The LS efi fuel system is as simple as SPFI systems get, plus the reliability aspect is amazing.
@@scottgas1299 its cheaper to buy a holley efi that is self learning tuneing than put a carb, intake and msd box. Take steps forward not backwards.
One of the best car shows EVER !
When you will do a video on a 5.7 LT1 from 1993 ? That whould be AWESOME ! And tell us if that torque head 24x conversion is the Best way to get rid of the optispark , and how much power could we get out of it !
GOD BLESS FROM ROMANIA 🇦🇩✝️🇺🇸
The coil pack conversion gives about another 15 to 20 horsepower and costs about $2500. The optispark is fine if you just keep it dry and use the vented cap. You can do a lot for $2500. I built a mild ( sorta' ) 383 LT1 for my '95 Firebird formula that makes about 450 at the flywheel.
Ooooor you could just use the factory fuel injection and intake manifold. Sending your harness and ecu out to get cut down and reprogrammed for stand alone only costs around $500.
hour and 41 minutes for an ls swap!! Insane, can I hire these guys?
What are the specs for the 'Comp Cam'? You guys post all the other parts used...
YesSiRr!!😎😁👊👌🔥💯💯!! Made it!!
God I love your shop
If the EFI setup costs almost $2K, how is a more expensive LS junkyard engine, with existing EFI, not a better option?
Great Video. Can anyone tell me what cam duration @ 050 plus lift this motor ran???? I take it was a Roller cam.
@@thomasdaddio741 113 LSA. Plus that cam is for the 1800 to 6800 RPM range. If they would have gone to 7000 I think 410 to 420 HP would have been the result.
Should put that 4.8 into a blazer
Love the Gen 2 Camaro
They should have raised the timing more with the carb 24 degrees seems low
They could've went a bit higher but the gains would have been minimal. These engines are a lot more efficient than the old SBC
They need to spin that thing 7,500 rpms
Yes
Lol I thought you were gonna sand the block down to
Lmao
What truck and year was that ls pulled from?😮
But what was the rattle/knock when you shut it off? Didn't sound healthy
love to see what a quadrajet would do
Best Engineering Workshop The Power Nation*🌠✓ ..,... Cheerio .🌠👍👍👍🌠🌠🌟🌠🌠.
could I do the same build with a 5.3?
How is it a budget build if you pay 600 dollars or more to remove power by carbureting it?
What is the specs on that camshaft
Not showing the whole dyno graph ? Bet the vac 2nd did great
I'd like to know what kind of mpg it got 😏🙄
Is there an EFI for a GM 572?
Can you guys do a stroked 4.8 or not possible ?
A 5.3 is a stroked 4.8. I believe the 6.2 is a slightly longer stroke yet.
$275 my ass boys. The day one of your builds costs that ill give u the $275. Im calling Shenanigans
boy I wish I could find the same deals they are finding, priced the same build significantly higher
Why cam did you guys use?
how easy is it to get these engines from junkyard complete with stock ECu and harness? and how hard is it to get those complete engines running in an old pre fuel injection chevy car/truck?
It's decently easy. You have to figure out if the junkyard you go to will nickel and dime you for each accessory. Normally it'd cost 500 ish full dress if you pull it yourself and 800 full dress if it's already pulled.
The engine is a decent bit shorter than gen 1 and 2 small block chevy's. The mount location is also different. If you use adapter plates than you can keep the stock transmission location and even use the old small block chevy engine mounts. The only thing I advise to watch out for is to make sure you have enough room at the back of the engine. Like I said the ls engine family is shorter and the engine will sit closer to the firewall. So make sure you have at least an inch or two of clearance behind your stock gen 1 or 2 sbc. Also have to pay attention to flexplates. The dished one will need a little adapter piece. It's like 30$ not a big deal.
Then there is the computer. You can opt for MSD 6014 box and intake which will set you back 750$ ish depending on sales. This will allow you to use a carburetor. However it gives full ignition tuning capability. If you want EFI and full ignition and fuel tuning capability there is holley terminator x for 1,000$. This is good for forced induction and larger injectors. If you are doing a mild cam with the same injectors and keeping the MAF sensor then you can just tune the stock ECU. If you are doing no cam, no injectors, naturally aspirated, with stock MAF, you can just use the stock computer with the "Vehicle Anti Theft" system disabled (cost like 60~70$).
If you do a carbureted set up you would need a low pressure electric fuel system, if you are doing efi you would need a higher pressure electric fuel pump/system. This can be as simple as a bosch 044 ziptied near your fuel tank with rubber efi line to the rails, or as complex as a sumped fuel cell with -10 hard lines and a magnafuel 4303. Depends on how much you want to spend and how neat you want it done.
If you are serious about it check out Sloppy Mechanics, A21 Bravo, Driveway Engineer, Squirrel Tuned, Night Wrencher, Richard Holdener (for combos), and LS1Tech.
@@lucysmith4242 Thats a comprehensive response especially from a "girl" ?
Ive since already bought 2 -5.3LS engines. One came w/o ecu, alternator, starter or manifolds but it was a mere 200 cdn with another 80 if he comes up with ecu and manifolds[and maybe starter but he sold alternator. ]
My second LS is a complete cutout inc all accesories, starter, manilfold and even maf sensor intake all for 445 cdn
BUT it had 2 broken manifold bolts, one he showed me and one i twisted off rather easily. the one he showed me came out easy as it had 1/2 inch sticking out but one i broke i spent a few hours yesterday with mig and easy outs and failed with both methods to get it out.
So i will try again today with fast freeze 6013 stick welding to remoe it but failing that i may have to swap the other LS head on there :-( which im guessing will be new head gaskets, maybe intake gaskets....might even Balloon into a new CAM[elgin 1840p or summit 8712] which require no new rods or rockers anything.] but will still be almost the same price as i paid for entire cutout.
@@kravmaga7070 yeah it always kind of snow balls out of control. If you still through the bolt/stud, all the way through with a drill bit about half the diameter it will relieve most of the pressure. That's how I used to do them in the Machine Shop. Sounds like you got good deals on those engines!
@@lucysmith4242 not sure i can dril it now since an extractor is broke off in hole. ?
@@kravmaga7070 Oof, that is tough tough. Beyond my level of expertise. Most machine shops should be able to extract it through creative means for maybe 30$
Where do you guys get your parts and prices from? I have not been able to find that first Holly...the 570 for anything less than close to 500 bucks!!! You guys are quoting 370, please enlighten me on this!
This episode is from like 7 years ago...inflation
@@monikhushalpuri I see! My apologies for not thinking of that!
Miss Mike. Anyone know where he went?
Anyone else notice that he hooked up the negative terminal before the positive?
They didn't say what the final timing amount was. If it's only 24, that's very much
Shouldnt a msd be kept cool. Like on the fender well or fire wall.
Why did yall go with stock rocker arms? 😲
Stock rocker arms are great. The weak link is the needle bearings, they're not even full rollers. Just take them apart and I put a bushing kit in them. Solid , Oilite Bronze bushings with micro polished tool steel trunnions. 300% stronger than stock.
You didn't show an increase of fuel pressures switching to efi, is it not necessary with this Holley application
The Holley kits come with the needed fuel pump, aswell as all the hoses and fittings.
Well how about trying that with an original 283 next. Put some H.O. 305 heads on it, cam, intake, etc. Can you build it for less money than the cost of all these aftermarket parts?
hell yes. ls stuff like they used is $$$$$/ dont let people tell you "hurr durr stock junkyard motor" nope.
@@frigglebiscuit7484 the parts used in this vid were a waste of money, and they made less power! You can easily use a junkyard LS engine with stock parts for cheap! It's only expensive if you make it expensive...
this site is my "gold standard" for real and accurate info
You must have never heard of Richard Holdener....
It shouldn't be
@@xekret the guy that runs vs segments and doesnt even match the engines equally? mhm...no thanks. i used to like him, but he got stale quick.
89 octane = fart ? that is lawn mower fuel ! your joking .
I’d love to see this tossed into a built truck
I wont daily drive my LS so for budget reasons, I might go with a carb.
@@mctigmctiggy1475 ^^^
Why not drive it. Thats what its for. Drive it.
@@joshtheking1772 Oh it will be driven no doubt!
For budget reasons just use the stock EFI. Get the harness and computer when you pull the motor at the junk yard. Modifying the harness to be a stand alone is not that difficult, but does take some time and care. But it save s you a but load of coin.
I was thinking about buying a crate 350 and build up from there, and throw a holley sniper efi on top, love the show
Don't bother. Just go to a junk yard and buy the motor, trans, harnesses and etc for about $700 from a 2006 Silverado. Build from that. WAY cheaper by leaps and bounds.
Can you tell me the part number for the cam for the 4.8 please
Comp Cams XFI 146-426-11
Edit: They give this specs but not the part number in the pervious episode. Specs on the cam are 222in/234ex duration and .566in/.576ex lift. So I just punched the numbers in google and that’s the cam that popped up.
@@TurboNFRStwoK thks
I never understood why people put carbs on LS engines...
Another ls, how great. Man are these motors ever getting boring
@@thomasdaddio741 yeah only Chevy guys could wish they could make power like fords do. If you haven’t noticed fords are holding all the records.
@@thomasdaddio741 my shit makes more power with iron heads then your aluminum ones do
@@thomasdaddio741 my animals aren’t dumb like yours
@@thomasdaddio741 be sure to put all that small block power threw a Ford rear as well
for real.
That last closed loop kit must have had some serious problems with torque... They wouldn't show those numbers. 🤔
Do the 90's 5.9 dodge magnum upgrades!
Now his Wife says “why did it take you three months to swap engines when you just did it in an hour?”
I am old school, I guess I am "too old school" because I have never had a problem with chokes or cold start problems!! Of course a lot of folks don't understand how to tune an old school carb like those on the 1960s and 1970s cars, and honestly tuning the carb was only part of the "tune"!!
OR to put it another way, back years ago tuning a carb was actually fairly straight forward and easy ONCE YOU UNDERSTOOD, that you have to TUNE EVERYTHING!! This is where I saw a lot of guys fail, because they would slap on the biggest carbs, then wonder why the motor stumbled because they did nothing to Dwell, or ignition timing or even cam timing (if needed)!! They ignored that all these system interact with each other in other words!!
And face it you can install the largest camshaft you engine can hold, but like tuning, if you ignore air flow through the motor you basically get the same result as a poor tune will give you!! Either super rich or super lean conditions and nothing that is a benefit to your motor or performance!!!
And I live in New York State most of my life.....so I would run a lot of manual chokes, and tune my timing and carbs to work together!! Believe it or not, even point type ignition systems can run extremely well when you actually understand the basics on how they interact with everything as well!!
There's absolutely nothing wrong with running a carb, and most people that have carb issues are more than likely ignition issues. The only problem with carbs is the tunability, they are set/built for the single application that you make it be. Once they are set, well that's it... With EFI the computer can constantly change to give the engine what it needs when it needs it.
I realize this show may have aired before Holley had the terminator X system out but there is no way I would trade my factory injection and Terminator X on my LS swap for what they ran on the dyno. Plus, it would have made more average HP and torque with the factory injection system!
This is probably 15 years old so long before what is available today. If you bought something without an intake setup because it was super cheap or wanted simplicity a carb still works. I would take the additional work involved to run EFI.
I seconded what Bill said. In my case I got a 4.8 long block with a 3.9 crank So I was on my own in terms of intake and field management. So for simplicity and cost effectiveness for me TBI is definitely the way to go with a carb intake
@@bigboreracing356 I suppose if you want a 7000 rpm top end race car. But for ripping around town below 7k the factory injection is the way to go in my opinion.
@@bigboreracing356 because I have watched enough Richard Holdner videos to know that the short runner on that carb style intake will not match the torque curve of a factory TBSS or even truck intake from idle to 5k RPM. Above that and the short runner will have slightly more and peak out with more. But that isn’t where most people do their driving on the streets unless you are roll racing or have a car with a really low gear ratio to utilize those RPM. Notice how they didn’t show the entire curve of the dyno pull and only the peak numbers? The bottom end was probably lower then even the stock cam motor would be.
@@bigboreracing356 i wouldn't run any of them. The EFI setup on this is $2000 and the XP your talking about is $900. Both of them are wasted money.
Would those numbers be similar for a 5.3L LS. ?
Should be better with the same upgrades. Porting the heads would also do wonders. Easily into the 400s
5.3's are the budget build of the century. You have SO many options when building those. Good to 500hp on the bottom end, keep the top end stable and you can have loads of fun with those. The 6.0 liter engines suck ass, for the money you spend on them. 5.3 liter motors are where the fun is at.
@@joshtheking1772 I agree I just rebuilt a 5.3 with 150k miles for a swap into a K5.
Polished the crank, new rod and main bearings, piston rings and ported the heads. Also put new gaskets, oil pump, timing set and harmonic balancer. I'm still under 1K for the rebuild and basically have brand new engine.
Roughly 10% more power from a 5.3 with the same parts.
factory 5.3's have better low end numbers, but 4.8's breathe better at top end
Is a 570 too small for a 5.3 with cam upgrade
Yes. 750cfm 34'timing
That’s not a 5.3
Need 600cfm restrictor plate for EFI run.
How much for injection please why not use all the stock injection
Right?!. And buy at least 2 more engines
The Static Compression ratio on this 4.8 is between 8.80-1 to 9.15-1 I have no idea where they fabricated 10.50-1. Simply not possible. JD
ls6 heads
@@wildbill6976 LS6 would have larger combustion chambers, therefore the CR would be lower.