The World's Largest Pontiac Street Engine LIVES! 601 cubes!~ that's ten liters!

Finally...after more than five years of effort and countless hours and dollars...it's alive...!

The 601-cubic inch Pontiac of my dreams has been tuned and tested at Westech in SoCal and is being boxed up for shipment to me here in MN.

The engine consists of an Indian Adventures aftermarket tall-deck Pontiac block with a 4.375-inch bore and a 5-inch stroke. The crank is a custom Moldex billet unit created for this engine. The rods are Oliver 7.250-inch H-beam units. The main bearing caps are billet. All the engine hardware is ARP.

Butler Performance in Leoma, TN, is responsible for getting it all together. They did the homework and worked hard to develop a package that would make good power and last long-term. The trickest parts are the cylinder heads, which Butler pioneered to feed the large-displacement Pontiacs. The pushrod holes normally found outboard of the intake ports limit how wide the ports can be, so Butler eliminates them and incorporates the pushrod hole into the intake port. But, the pushrod has to go somewhere, so a combination of offset roller lifters (by Crower) and offset shaft-mounted rocker arms (by T&D) move the pushrods over far enough to accommodate the huge (by Pontiac standards) intake ports. They start with Edelbrock Pontiac aluminum heads and these have proven to be effective in feeding big-inch/big power Pontiac engines.

The cam is a Comp solid roller. Lift is barely over .700.

Final ***embly was handled by my pal Andy at AllPontiac. I hated to leave this behind when I moved cross-country, but I was ***ured it was in good hands.

The final numbers from the dyno showed 738 peak hp. I'll have complete dyno info on this soon, but I just got the phone call and this is all I can say right now. There's lots of torque...heh heh...and it'll run forever at low rpm levels while making big power.

I am very satisfied with it at this point. I know it will be further fine-tuned when it gets here and meets its new best friend...the big blue bottle! The 9.75:1 compression was intended to work well on pump gas and additional power could be had with a programmable nitrous setup. I intend to add between 300-400 more horses with the juice. I have two 12.5 lb bottles that will be in the car at all times.

I fully intend to see 1,000 rear wheel horsepower at full song.

With a pump gas Pontiac...on the street.

I'm stoked!
My 87-octane 383 project worked out better than expected...545hp on 87-octane! See the story on that one here:
http://www.compcams.com/Community/Articles/Details.asp?ID=1945664039

My 601ci Pontiac met the goal...738 hp before nitrous on 91-octane pump gas...

http://www.flickr.com/photos/11929667@N00/100154407/
http://www.flickr.com/photos/11929667@N00/100154406/
http://www.flickr.com/photos/11929667@N00/100154405/
http://www.flickr.com/photos/11929667@N00/100154404/
http://www.flickr.com/photos/11929667@N00/100154403/
http://www.flickr.com/photos/11929667@N00/100154402/

...next - The mighty Buick Straight 8!!!

Maybe I should finish some of the cars these engines are intended for. That might be a good idea. At least the 383 is in a car and running...

~Scotch~

P.S.- "What the hell are you going to do with it, Scotch?"

The engine will live in a '65 Pontiac LeMans that will be run on the street, strip, road course, and in open road compe***ions like the Silver State Cl***ic Challenge. You can see a rendering of the car here:
http://www.flickr.com/photos/11929667@N00/100155575/

I'm hoping it'll break 200 mph one day.
Trans is a 4L80-E, rear axle is a Ford 9. Wheels are 18s and 17s. Brakes are 12s and 13s. Front fenders, hood, bumpers, and decklid are 'gl***. It will be caged (not shown in rendering).

~S~

 

I'm giggling like a little school girl over here. A couple of my friends are HUGE Pontiac guys. Be careful if you ever drive it in NW Indiana...

I've been wondering what you have been up to with this one... glad to see its making you happy.

 

That's....wow

 

Sounds neat.

Theres a guy here who runs a 706 pontiac in a late model GM car, he competes in a street legal drag cl*** caled street eliminator.
Every round they must complete a 30 mile road trip, take on a certain amount of pump fuel and do a hot start. They run on treaded tyres and pump gas. He's got as far as a 8.14 and 172mph or so... just eclipsed by a blown 508ci big block chevy powered audi thats run a 8.065 at 182mph. The car with the pontiac won the world street race in Louisana at the start of last year..

a bit more about street eliminator www.streeteliminatoruk.com
the audi www.audiracing.co.uk

 

Wow!

 

You freakin NUT! Congrats man. I know how much of yourself you have put into this!


FONZI

 

601 cubes AIN'T ten liters. That's 9.9 wimpy liters. LOL!

Good job man. Put three 2bbls on it and run it in a Deuce.

 

WOW, that LeMans looks sweet!

 

So one thing i gotta know will it leave one hell a strip if you do a burn out.You know,Where you can take a can of spray paint and right "this is from a 65 gto running a 601 cube engine.Know don't you wish you where here to see it"

 

P.S With that motor in the car how long will it take to get from your house to Porky's in St.Paul

 

Thanks for the update! I was just thinking to myself last week "Self, i wonder whatever happened to that big *** Poncho motor that Scotch was putting together?"

BTW, if the car turns out even remotely close to the rendering, it will be one beautiful car (and a handful to drive, I'd imagine).

 

LOL Stevie..I don't know how long of a burnout it'll do, but I imagine we'll run out of room before we'll have to get off the throttle...especially if I hit the nitrous ****on.

I'll have slicks or DOT-legal drag radials for the drags, and super-sticky low profile rubber for the top-end charges.

It should be entertaining no matter which tires I've got on it...

~Scotch~

 

Man,Scotch, I hope you know one hell of a ch***is guy...if I guess at the torque numbers and get it right,would you tell us?

because due to stroke,rod length,bore size and the fact I have had the privilage of working with a Butler motor, I am guessin' at 850-900.

car looks great. I am not a fan of the spoiler, but hey,it's not my car,so...

what are you gonna back that monster up with ****** wise?

 

"Ladies and gentlemen....I will now turn this driveshaft into a corkscrew! ALAKAZEE-ALAKAZAM!!! Pay no attention to those nasty black marks, folks, all part of the act!!!"

 

It'll be a TCI 4L80-E with plenty of HD upgrades. It's a computer-controlled beastie I can program to shift nice and soft around town and really hard when I want it to. I'm hoping to keep the O/D on for the top-end charges, but the word from the wise is that the factory O/D won't take the power I'm pushing. I also want a lockup converter...the jury is out on that, too.

With a lockup converter and O/D, I know I can make a run at 200 with a 3.08 gear. Without them, I'm not sure I could get there...'65 Pontiacs are not known for their aerodynamic shapeliness...but since mine will be "spoiled" I'm hoping it'll have a shot.

~Scotch~

 

LOL


http://www.dennysdriveshaft.com/html/nitrous_ready.html

No worries...This car is made for driving, and I'll be driving it plenty...

~S~

 

Sweet

 

Ewww and so am I! So when the crate arrives with me piggy backed to the motor....will you feed me beer and bbq??

I think this makes you a lucky son-ova-gun in my book. I'm SO green with envy!

Brandy

 

GAWD! that is incredible!

 

Man... wow... man... wow.... man... wow..... you get the point

 

FINALLY!!!!!

I thought that mill went into hibernation when you moved to Minne-sootah. Glad to hear she lives.That represents an *** load of work, not to mention ...cash..

Is this build up going into the magazine?

Congratulations, -Abone.

PS. You should check out Performance Years Pontiac message board. Lots of hard core racers. They would go *****-city over this..

See you at the HAMB Drags.

 

Man...I hope so. That'd be cool. I don't know if the rest of the car will be done by then...at least maybe not this year...but by next year it should be together and dialed in. That's my target timeframe.

~Scotch~

 

good math, but i think that 8 dueces might be inorder to keep the flow up...

 

Congrats on getting it completed. Now get it into something and show us how well its makes long black marks.....

 

I can't wait Boones..

I got a bit more info-

Peak HP= 738@5,800
Peak TQ= 755@4,400

The great thing is that, by design, these peaks came at low rpm levels. This minimizes stresses on these very pricey custom parts and if the engine doesn't have to see the high side of 6,000 rpm very often (or EVER), it'll last a long, long time. This was also part of the plan from day one.

There are a couple minor "tweaks" I will make that will definitely improve these numbers. As was mentioned, these are dyno numbers and the headers chosen for the dyno runs were less than optimal for this size of Pontiac engine. I mean, who's got a set of headers for a Poncho this big? There's more in there, no question. The headers to be built for the car will be designed for maximum performance, and will undoubtedly add power.

I can't wait to experience this level of power. This engine, and the car its going in to, are by far the most radical projects I've ever owned. I've worked on some crazier stuff, but it was either for pure compe***ion or some really rich dude...or both! LOL

This will challenge my capabilities on many levels, and I look forward to the experiences I'll gain by completing the car and competing with it. If I can dial everything in to work together seamlessly (engine computer, nitrous computer, transmission computer, adjustable suspension, etc) I expect the results will be...noteworthy...!

~Scotch~

 

Scotch, Does the size of the motor create any install issues with your project (I am ***uming the outside block dimensions are slightly larger then a factory 455)

 

You're right on it Boones. It's a tall-deck Pontiac, so the motor mounts will hook right up. The bellhousing is double-drilled for BOP or Chevy pattern transmissions, so that's a no-brainer.

The only "glitch" is in the exhaust, as the ports will be raised almost 1/2-inch over "stock". (The block is a 1/2-inch taller from crank C/L to the top of the deck, so when you take the 45-degree block angle into account, it's a little less than the half-inch.)

But, since headers will have to be custom-made anyway, I'm fine with that. I'm also praying that the additional al***ude may even help header fitment, which is often a chore on Pontiacs with their 120-degree turn exhaust port design. A little more room will probably help.

Otherwise, it'll be pretty basic. The oil pan is a Canton road race unit- designed to fit inside a stock ch***is. The hood will have to be ventilated to give the scoop some room to breathe, so I'll be able to adjust how high over the hood surface I'd like it to rest with spacer plates under the injector hat. I'm thinking that having the injector hat base level with the hood surface will look best, but I'll experiment once its in the car.

I'm not anticipating any crazy headaches. The water pump will be Chevy-based, I must run a mini-starter since a factory Pontiac unit won't fit, and there will be no fuel pump bolted on the side of it. So much is stripped off the engine already that fitting it up shouldn't be a major pain. Certainly some fabrication and customization will have to occur, but it shouldn't involve getting the engine installed in the ch***is. Rather, I'm anticipating the supporting systems to require the fab work.

~Scotch~

 

wow... that is awesome scotch, congratulations!

will you be putting this in a magazine?