Pontiac Ram Air IV start up 

SHOULD have destroked it to 428 size so you could still revv it.

@@w41duvernay somehow i think Spotts knows what he is doing, perhaps more so than you...

It was a cool project - Since they never had one, it was a cool idea to make it look stock under the hood.

Cool motor, Waste going into a hearse. Talk him into a stock low compression 455. Save the RAIV for a nice Goat or Fbird.

69 FB RAIV manifolds - fits 67 - 69 F body and 65-70 Big car Also the 69 GP, but only came in 69 FB/TA from the factory

Nope, he has the correct 3-piece intake with the separate heat crossover and RA IV heads were round ports, NOT D-ports

not really - closer to 500 - its a hydraulic roller pump gas engine, designed for a very heavy 1970 Bonneville funeral car. Torque was the object while a good idle and streetability were important.

spotperf. What type of head work was done to achieve the 500 hp! What kind of torque numbers is that putting down and was motor on dyno.

I have a 467 that i shift at 6200. Unless your going to run aluminum heads that are ported there is no sense in revving a Pontiac engine. Pontiacs are all about torque not like a chevy that has to rev to do anything

@@1972Ventura455ho Old thread but: Okay race cars began classing themselves according to engine displacement long ago. They noticed that oversquare engines could be revved higher before breakage IF the valvetrain could be made to operate that fast. So overhead cams, four valves-per-cylinder, etc etc. "RPMS take up no space and weigh nothing", so they always made higher dynamometer numbers. Aaaand - then you are right that cars are not dynos. It's about accelerating the car. Until the day that infinitely variable transmissions (gotta love variable pitch constant speed aircraft propellers!) become a thing for two ton 500 horsepower automobiles having the most area under the torque curve used for the transmission you got puts you ahead every time. Aaaaaand passenger cars don't have displacement limits ; ) But then again neither is there a special class for supercharged and turbocharged engines either. Today I just dropped 4 grand on a custom fully counterweighted 3.75" stroke billet 400 crank. Already got the Carillo CP rods for it. Mahle making me some custom pistons. You get the idea - it's 7500 rpm redline time ! And nothing says if I want to (and can afford it) I can't supercharge it a little. Kind of like adding displacement without large diameter heavy pistons or con-rod-stretching stroke. Total answer is you run what suits you - my car is a corner-turner road burner and clutchin' gears and hangin' the ass end out excites me - and I'll run what I run. Ponchos rule and that's the facts Jack.

Need the msd to retard the timing to crank up hi compression a butler 482. Original ram air 4 is boxed up with all of its bent push rods

it was just started for the short video - it has a cooling system

Stock intake is fine. It's going into a hearse, how many RPMs does it need?

Their are guys running 11s with a factory intakes. Rick Mahoney 1968 Firebird went 9.90s with a stroked 400, RA II heads, a factory cast intake, red line tires in the F.A.S.T races.

Yes they are 69 FB/TA RAIV

@@spotperf Funny how some of the Pontiac people, don't even know about the F-body/big car manifolds. The A body ones are rare enuff. These are ultra rare. Thanks for posting.

@@joequillun7790 yeah bunch of shit talkers who don’t know a poncho from a hole in the ground

yes, anything but a Hearse....could just toss an old 455 in that....geese....Waste of 10 Grand.

@@MidnightinSavannah because that motor deserves a nice 2 door post back halved Pontiac to go into not a hearse.

why not? It's cool that somebody is thinking out of the box. They could be a lot of these idiots these days with putting a LS engine in a Pontiac.

@@kimmorrison9169 So i guess i'm wasting a engine when i put a 428 with RA IV heads and intake in my '69 Grand Prix?

How about a ‘72 Ventura instead of the long hooded ‘69 GP? I like that choice as its almost as good as my L78 Nova.

@@kimmorrison9169 I already did the Ventura thing for 10 years.