Cam Spec.’s for GM’s new 1000 HP pump gas engine

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Rick!
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Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

Post by Rick! »

RAS wrote: Thu Nov 11, 2021 11:23 pm The cylinder heads have a strong resemblance to the CID symmetrical Port heads. Specs are really close too. Not taking anything away from Ron Sperry. I can't imagine how they got the OK from GM to do this build. That would be the story of the decade. I like the rocker bar. I'm thinking an additional atmosphere from a screw blower and this deal could get serious. I here it's intended for the new NHRA Factory FX Class.
I heard that rumor also, but it's an LS with a 2.65L Magnuson blower.
NHRA Exhibition Rules - go to page 48
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Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

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Anyone know which beehive spring was used?...............closest one i could find was the PAC-1295 that would work.
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Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

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ClassKing wrote: Sat Nov 06, 2021 5:42 pm Ok, sure Five miles of which not all are at WOT. It's still a limited use engine. That's about it except the guys who run the Cannon Ball. But none of them are WOT for MILES either.
Pretty common with offshore marine performance engines.
blackford
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Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

Post by blackford »

This one is $10,000 less than the ZZ632

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

This one is 50 horsepower more and still $10,000 less

https://www.shafiroff.com/chevy-pump-ga ... d-sr20.php
65 Mustang FB, 331 custom built with 289 H beam rods and 383W piston, 282S cam, Ported Maxx 180s, T5z, 9" 3.89 gears. ~460HP@6500

2013 Corvette 427 Convertible daily driver
Dave B
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Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

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113lsa
109 i/c
like 52 deg ol
iirc
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Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

Post by HDBD »

Curious what lifters they use?
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Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

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HDBD wrote: Sat Feb 24, 2024 9:23 am Curious what lifters they use?
Gm lifters .842 made by johnson i believe.......seat pressure is only 180 and 400 open.
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