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@@242bleek the story is, Mac in his old age, gave engine to a guy to rebuild for him. The guy had it forever, until Mac died. The rebuilder guy deadbeats out and keeps motor. Then he also dies. Then recently another benevolent person, buys car and motor from the 2 different owners surviving family members, and is now restoring it, reuniting body with OHC 421 V8 motor.

@@242bleek you can see a picture of that car, with engine on stand in front of it, and Mac with hand on motor, in Pete McCarthy's Pontiac musclecar manual printed 1989

@@tunnelportterror Wow what a shame. Such a legendary car and engine ended up in the hands of a crook. Hopefully the resto is going well. Is there a way to follow it?

It's not a gear drive. It was a chain drive, as shown by the cover, and tensioners adjusters, oilers, and it was a failure. It's main purpose was R&D to further develop the Pontiac v8 for SOHC DOHC future production, for corporate use into 1980-90s, which never materialized. Federal emissions standards got so tight, only the small block Chevy, Olds could pass the 1980s standards. The 265 and 301 Pontiac short deck motors died in 1981-82.

Yes that was it's purpose but it never raced. They never even ran. They were outsourced by Pontiac, examined, then discarded. They ran a short deck, cam in block 303 built by GM.

@@tunnelportterror thanks, wild story huh

Yep that's the same unit only with auto ground balance. Here's the thing, you will definitely get a response from a White's 5900 or 6000 if there's any type of metal in the ground, junk or gold or anything in between. The thing that the new detectors do better is give you tones to discriminate between them someone more precisely. And they will respond quicker if the items are on top of each other or very close together. But the whites is still going to tell you if there's something there. Having said that I found a pile of roofing nails and pieces of tin buried with a handful of coins near an Old Farm Spring House left there from doing a roof job decades ago. And I heard different tones with the 5900 meaning clear belt tone compared to staticky broken up discriminator . What the new digitals have done is instead of giving us a broken up staticky tone they give us a completely different tone for scrap, different from a good hit for gold or silver or copper etc. But those newfangled detectors still get tricked a lot and you have to dig a lot of junk if you go metal detecting that's all there is to it.

How did that 421 run ?

@@tunnelportterror It ran very good. 1970 TA - 421 HO 4 bolt -.060 over. Flat top pistons, SD rods (73-74), N 455 Crank 10/10, #12 RAIII heads, T400 with factory 12 bolt and 4.10s. No traction with anything on street. Car would run 11.60s at 122 back in 1990. Weight was 3400 pounds. 1/2" fuel lines and a blue pump. Needed a better intake than the Edelbrock torker. Crower solid 533/555 304/312 252 260 @.050. Harland Sharp 1.65 Roller Rockers. Was a good combo. Except for about 12-1 compression with the 72cc heads on a basically 455 motor.

@@tunnelportterror it actually had a 455 crank so it was a 455 standard bore. I ran 36 total timing @16 initial with 100 octane or higher. I would have to run Superfuels (VP race gas 105). Back then it was about $3.50 a gallon. I could run two cans of 104 real lead octane booster and 93 octane fuel but it would have to be about 14 initial and 32 total. Still would spark knock though.

@@whodatnunyabiz6050 yeh when they did away with 100 octane pump gas, they sorta castrated the old high cr v8's

@@tunnelportterror 100% agree. I’m building a 428 motor for my 65 GTO and will be a milder combo. Will probably spend the money on some Kaufman heads and intake but nothing crazy. Planning on a 10.5-1 ratio because of the aluminum heads. Hyd roller cam but similar in lift and duration as the crower solid I mentioned earlier. Def going to non ethanol fuels. Will get a T56 and keep the 12 bolt that’s in it. Building it to drive and race. Will see how it goes from there.

Hey that cost at least $2 😂 lol Initial startup, no water, radiator in it there yet.

Here it is now czcams.com/video/hOqdPp9a41o/video.htmlfeature=shared Where's your 1970 GTO ?

The 303 with Ram Air IV heads and single cam was the best combination 5 liter Pontiac that actually raced..

Yeh they weren't reliable at all in dyno tests, they kept flipping the belt off

@@tunnelportterror Right. That was a DOHC. The SOHC 421 that Mac McKellar had in his '63 GP must have been reliable or he would not have used it. Any idea if this was belt driven, or chain?

www.wallaceracing.com/RAV-303-mystery-engine3.jpg

Yeh, the factory did, in 2003. I had two 1991 1.9 liter dohc 16valve Saturn's. 1stick 5 speed, 1 automatic. They both got 30 mpg city mileage, 36 highway. The stick got 42mpg in 5th gesr, coming home from vacation at Cape Cod on highway one tankful. Amazing cars. Both ran to 222,000 miles, then I sold them each for $500. Buyers drove them away. The 2.2 liter had more power, but less mileage, and risky hydraulic timing chain tensioner system. Having said that, the 2003 2.2 also went to 235,000 miles, sold for $500. But it ate a timing chain at 155k, bent valves, had to put used engine in.

Precisely, a Saturn ion 2.2. They were made from 03 to 07 and may or may not have had a continuation.

You mean this engine you cant see ? czcams.com/video/byhbVT2saIk/video.htmlfeature=shared

or is it this engine you can't see ? czcams.com/video/p1vEGpCa6uw/video.htmlfeature=shared

Don't know, sent to me by friend in Michigan

And today they have bent valves, timing chains jumping time, spark plugs snapping off, pulling threads out of aluminum hesds, turbos melting down, and filled with Chinese, Korean made shit parts. And cost 50 grand for the pos. And are worth $500 scrap value in less than 10 years. While the restoreable old cars are worth 50 grand.

@@tunnelportterror You said it brother. Especially if you're into the old Mopars it seems. I think I'm gonna try and get myself an old beater C4 Corvette to work on, they still seem to be kind of affordable these days, for me anyways, one that's fixable.

I found the cam on the net for sale from private owner who never used it. Crane used to make them. Melling made the originals for GM, I found one of those too. Comp Cams, Crower, Isky could probably make one for you. I may consider selling the Melling but it would not be cheap.

@@tunnelportterror much appreciate your reply. Is there a bit of maintenance to running a solid camshaft on the street? Benefits?

@@kevinmanning4880 benefits more power, maintenance yes you'd have to check the valve clearance 10k-15k miles.

Look through my later videos when I got it tuned etc.

Also meant to mention that a month before the above occurred I was hard at it over in the Administration Building across the plant site "bumping and grinding" (recall I was in an accountant role) and from my desk actually heard this unbelievable "SCREAMING" emanating from the Engineering Department's dyno exhaust tunnel (it ran a hundred yards below ground to its atmospheric exit). Same day when I had a little time I visited the Special Projects Engineering Office and inquired, "WHAT THE HECK DO YOU HAVE ON THE DYNO TODAY!" Answer was, "Pete, sorry, can't say much but think 'Jerry Titus' and 303 CID".

The HO block just means 4 bolt mains nothing else. Find or mill up a pair of 96cc heads for pump gas. Use 2.11 1.77 valves. Get a solid flat tappet cam at least, or roller. Port the heads. Get a cam with similar specs. Also a Victor or Torker 2 intake, 800 cfm Holley. Headers. Electronic ignition .forged rods, forged pistons for durability. 80 lb. Oil pump. Double roller chain. Windage tray.

No I just got some different cars. But I had the GTO since 1982 put away. Never finished it. This 70 GTO I had body off frame bsck in 1980's

Certainly....specs on the CRANE BLUEPRINT McKellar #10 SOLID LIFTER cam are - 236°/247° i/e duration @ .050" lift, 113.5° LSA, valve lift is .416"/.420" i/e Valve lash clearance is .012"/.018" i/e But I had to use 1.65 Melling rockers to get that lift. It's NOT .447" with 1.65's that's from the CRANE catalog, it's also what I remember from cam card. I can't find the cam card now, don't remember seat to seat duration. It IS noticeably longer duration, rougher idle than RA IV hydro cam. But less lift than RA IV.

You should do more videos on your gto it was pretty intresting

That's a possibility but the SOHC427 Ford cammer v8 had a very long chain too, and tuners of the time figured out how to advance one bank, retard the other. That in itself is not insurmountable. It's the fact this engine was an engineering exercise, nothing more. Those heads are a POS

You can see a picture of Mac with the 63 GP and SOHC motor on floor of his garage, in Pete McCarthy's 2nd Pontiac book

Very long time ago, Mac has been dead a while

Well...the EXHAUST was loud at first, with open headers. Then I put duals with Flowmasters on it, to quiet it down. The CAM has lots of overlap, gives a rough, radical idle. You're hearing a combination of 2 things. Cams by themselves are not "loud". You can have a big cam with quiet stock mufflers.

in 2003 is was $1250 for stove including delivery, installation, and another $1350 for the double wall stainless chimney 14 feet tall. it paid for itself in 2 years.

You can get a used stove for $500, and a cheaper chimney for about $500 new.

dude, it's a vintage 1962 Super Duty 421 cam, with solid flat tappets. that's how they idled. and that was a fresh engine just built. first start in the winter, cold garage, with a big Holley 850 DP from an L88 427 big block Chevy.

​@@tunnelportterroreh ignore him. Some people cry about engine rattle/shake but then go asking the most basic forums for cams that "have a good chop"

I still have this unit in storage, in my basement. $250 takes it, if anyone is interested

wrong...it's ionic steam, I worked there, and a retired nuclear sub tech told me exactly what it was. and we were checked as employees, and had radon in our clothing

it's a shit motor though, lots of teething problems. the factory Ram Air IV heads made more power, a SOHC 303 is like going to hell to light a cigarette.

@tunnelportterror I'm just simply enjoying the one off thing that was was an r&d project. For sure it has it has its issues as all engines do. I just appreciate it for what it is and that someone took the time to do this. It's really a pretty cool article if you get the chance to read it. I was never a fan of the 301 that was in production or whatever that weak ass engine was. I got into the 455 ho . My 3rd transam I had I built early 70s 400 ram air 4 block and heads I can't remember exactly all the numbers. But it was bored 20 over balanced and blue printed. Put a nice healthy cam in it with a air gap intake. The heads I carefully hand ported myself before the valve job. Toped with a 750 or 850 carb, we did all the tuning. This car would knock the tires off forever it seemed like. I did swap a ws6 rear end with 373 gears and disc brakes onto it. It had the factory 256 gears that was an open diff and that just wasn't going to work.

I was 16 then just so you know Maybe 17.

bs- just take a sheetmetal plate, fasten over it with sheetmetal screws. I had two Monte Carlos 2001, 2003 had removable access panels in trunk floor to get to fuel tank, that screwed down. what states are "some"? they're going to pull the rugs for state inspection? the floor already has plastic round plugs in it from factory to block holes.

nope, not me. I used to get HPP in the mail when it was a magazine- 1980s-90s.

😂 lol all I wanted to do, is forward it to NYC Detecting. didn't really think of it as a review... everyone is buying these new R2D2 robot sounding detectors, truth be told, an old Whites goes just as deep, or deeper. may just take a little more time. I don't want to hurry when detecting. it's not a race! it's supposed to be relaxation

ain't that something? listen past the background noise, it's the most authentic sound you'll ever hear

@@tunnelportterror I have a very similar one, it is model YP-8L

@@angeltorresmorales9994 the only format that's more realistic would be original masters of studio reel to reel tape. the faster an analog format is recorded/played back, the more resolution it has. because more of the analog canvas is being dragged past the sensing device, be is tape head, or stylus needle, etc. shellac singles were the fastest records made 78 rpm. they also had a very large needle tip 3 mil or larger. that would be like wider tracks on analog tape. a clean 78 is as good as it gets. like an invisible ghost singing in your house in front of you.

Yeah, I do. Unfortunately, I don't have big valve heads- I'm just a youngin, found a deal online. It's a 2 barrel with #15 heads pulled from an executive. It, with a Th400 was only 250 bucks and 2 hours away. Motor spun over, had great compression, and even has the original valve cover gaskets. It hasn't ever been opened. I'm thinking of for now, throwing some 6x-4 heads and either a 4 barrel from the last 400 I bought (Which turned out to be scrap) or some Chinese fuel injection intake, after putting in some work to clean up the ports and make sure all the surfaces are flat. Just something to get the car back on the road, and be a fun street cruiser until I rack up enough cash and parts to build it the way I want. Pontiacs aren't plentiful where am, sadly.

@@dinos0429 where are you located? if that's a 455 with casting #15 heads, just run it AS IS !! With an AMERICAN made single 4 intake, I'm can't iron, Holley, Edelbrock, and a 4 bbl. carb. that engine is 360 hp, 510 torque from factory if it's a YH code, and 10:1 compression. and BTW, Pontiacs are not plentiful ANYWHERE today ! most of them went to the crusher !

@@tunnelportterror Just in Oklahoma. While I'd love a 455, it's a '68 400 (Casting 9790071) that came in an executive with a th400. So far as I can find, it's a 290 horse, 428 torque motor with small valve, press in stud heads (1968 15, 1.96 in/1.66 ex.) but had 10.25:1 compression. It was also an AC car, if that makes any difference. I got it because I was absolutely not putting a Chevy power plant in my bird, and it's a great base to hot rod out later.

@@tunnelportterror You wouldn't be looking to get another set of RA V heads are you? I just found a set online with a tunnel ram for 2 grand in Oklahoma city. I'd buy them myself but don't have anywhere near the amount needed..

that's not too rich, it's too LEAN. when a motor pops back fire through carb it's lean. you can hear its starving for fuel