[Stan Weiss]

Originally Posted by b-man

Bill Creech (WDCreech) has a 606-cube tall deck IA in his ‘64 GTO race car so it looks like you can build a 600+ inch Pontiac.

A 4.39” bore and 5” stroke would get you 605.4 inches.

Didn't JCYou build a 609 RAV engine?

Stan

[Tim Corcoran]

Originally Posted by Bill Hanlon

Did you miss a zero on the mains??? 27 thousandths seems a bit wide to this amateur.

Yes I did miss a zero, sorry my mistake. Should be .0027/.0028

[Steve C.]

Pontiac Ram Air V - Chief Stomp ’Em

Bore sizes to increase to a whopping 4.500 inches. Combined with the Bryant billet crankshaft stroke of 4.785 inches, displacement works out to 609 ci.


https://www.motortrend.com/how-to/60...hief-stomp-em/

Dyno pull: https://www.youtube.com/watch?v=Q0z9j08khy4



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[Tim Corcoran]

The information in my post was taken from the December issue of Hot Rod so I don't claim everything to be 100% correct. According to the article this is a street engine available directly from Chevy and it is the same engine they are putting in the 2024 COPO Camaro. I would have to think some level of durability testing was done. The reason I posted it is because of the hydraulic cam and hydraulic roller lifters and the spring pressures, I thought that was quite interesting. The thing I found most interesting was 12.0:1 compression and pump gas. These GM engineers are pretty damn smart. Don't get me wrong I am a Pontiac man through and through just though it was interesting stuff.

[Gach]

Dream on guys, are any of those 2 mentioned Pump gas motors, and available in a crate motor. For 23,000.00.

[turbo69bird]

Or you could build an iron headed pump gas stock block Pontiac and put a BIG hair dryer on it and the it well and do the same thing for MUCH less!
I dint get the infatuation w NA combos. Power is power who cares how you get there. .

Btw my Tesla model X plaid make that HP stick out of the showroom when my wife picked it up. And in Model S form it’ll run 9.19 STOCK! No wrenching needed !

[Stan Weiss]

Originally Posted by Gach

Dream on guys, are any of those 2 mentioned Pump gas motors, and available in a crate motor. For 23,000.00.

You get what you pay for.

I believe the SSRE has no carb or ignition.

The Chevy engine is EFI and COP. I don't know about the ZZ632, but the ZZ572 had to pass something like a 50 dyno test. That means after 50 hours everything still had to be in specs when checked.

Stan

[Gach]

This would be the one to get.

https://www.shafiroff.com/chevy-pump...isted-sr20.php

[Gach]

You ain’t building no Pontiac motor that will make 1050 hp on pump gas for 22,250.00. The heads alone would be $12,000.00 with shaft Rocker.

[Steve C.]

Summit Racing Equipment....

Chevrolet Performance ZZ632/1000 Deluxe Long Block Crate Engine

https://www.summitracing.com/search/...=HP%20ZZ632%20


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[Gach]

Originally Posted by turbo69bird

Or you could build an iron headed pump gas stock block Pontiac and put a BIG hair dryer on it and the it well and do the same thing for MUCH less!
I dint get the infatuation w NA combos. Power is power who cares how you get there. .

Btw my Tesla model X plaid make that HP stick out of the showroom when my wife picked it up. And in Model S form it’ll run 9.19 STOCK! No wrenching needed !

Stock block…LOL That would be like riding around with a grenade with the pin out. Sure you could take your friends out for a ride, and impress them. Once in a while.

[PAUL K]

Originally Posted by Gach

You ain’t building no Pontiac motor that will make 1050 hp on pump gas for 22,250.00. The heads alone would be $12,000.00 with shaft Rocker.

The combustion chamber size would be the biggest issue

[Tim Corcoran]

The purpose of me posting wasn't to compare a Pontiac engine with a BBC. I think we all can agree the BBC has bigger bore spacing and the massive heads flow 475 intake and 350 exhaust and Pontiac is at a huge disadvantage. These massive BBC heads flow 375 cfm on the intake at .400 lift. All that aside the industry has done amazing things for our old friend (Pontiac) by providing aftermarket intakes, heads, rods, pistons, blocks and cranks to bring the performance up to amazing levels. This would not have happened without people like you demanding these products and opening up your wallets and putting them on the street and racetracks. I'm not going to run out and buy a bowtie because I can make more power. Pontiac people don't follow the crowd, we follow our hearts and do something different. I love my Pontiacs.

[Gach]

I was just curious why you brought it up in the first place. I have three Chevy buddies all have Schaeferoff BBC 750 hp pump gas motors…1 in a..Camaro he did run 10’s…1 in a Nova and 1 in a Chevelle. They’re all Street cars. Gorgeous cars too. All I ever heard was Pontiacs don’t rev and their rod chuckers. Until me and the Nova line up for $200.00. Got the race on VHS tape. Quickest $200 I ever made. For me it’s all about whats in your neighborhood. Most of the Chevy guys live in the past when it comes to Pontiacs. They don’t realize that we have aftermarket blocks and aftermarket heads and now have capability of making 800 hp yes on pump gas all by 6500 rpms. The other two are not interested in racing this Pontiac. LOL I mean that’s what it’s all about. For me Big chief put Pontiacs on the map because they were all glued to the street outlaw series. Especially the video of him actually showing that it’s a Pontiac and not a big block Chevy. I like the one about the Rocky one motor in the rocky to motor.LOL

THEN ! We have John Langer and ECM boys Kinsler… Sydner (sp) …Billy. Just keep sending the Chevy boys YouTube video links of those guys. For me as long as you have respect in your neighborhood. Thats all that counts. Or 95% of us its a hobby that we love.

[Tim Corcoran]

Originally Posted by Gach

I was just curious why you brought it up in the first place.

Mostly because of the hyd roller set up, the spider plate and the 12:1 compression running pump gas. I thought those things were interesting and worthwhile sharing.

[Gach]

Originally Posted by Tim Corcoran

Mostly because of the hyd roller set up, the spider plate and the 12:1 compression running pump gas. I thought those things were interesting and worthwhile sharing.

Oh yeah I agree. Interesting for sure.

[Dragncar]

1050 pump gas Pontiac horsepower is doable.
Chris U made 998 with Marcellas Pro Ports and intake ect back in 2014 !
I just read the entire thread on Yellowbullet and it wa unanimous that there was more power left in it but it never went back on the dyno.
Chris said there was 25 HP with a cam matched to the Try Y headers alone.
Not cheap but a custom sheet metal 2 x 4 intake and a couple Dale Cubics is also worth horsepower.
Yeah, it might cost 60+K to do it not to mention the will to get it done but tech has changed in a decade enough for 40-50 HP.

https://www.yellowbullet.com/threads...reply_top_post

[Stan Weiss]

This what I have from back then 4.38" x 4.595" - 554 ci - 11.8:1

Stan

[turbo69bird]

Originally Posted by Gach

Stock block…LOL That would be like riding around with a grenade with the pin out. Sure you could take your friends out for a ride, and impress them. Once in a while.

I been running a stock 2 bolt block since 2005 never had an issue 960 HP 160 track passes a year for the first 5 years ! Not ever a spark plug change on this motor yet!

And did it on pump gas plus won the HPP 2009 Pontiac day in the fastest class w it. Drive it to many car shows and do annual burn outs and passes down the runways at the Simsbury fly in with it. Every year.

[mgarblik]

The crate engine I believe the OP was referring to cost $35,000.00. That is mentioned on page 82, top of the second column. It says complete but doesn't really go into any detail what "complete" means. Does that mean complete with the wiring harness and a PCM to run and operate the engine? Doesn't say. I like the decent level of detail included in the article and all the pics. It's interesting stuff. A crate NA engine that makes over 1000 HP is pretty cool. If I was a Chevy guy, I would think it was even cooler. If the same HP level Pontiac engine was available in an imaginary world, how many do you think they would sell for 35K ? My guess would be 2 or 3.