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#1
09-22-2005, 01:57 AM
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7.4 liter 454 block
The guy I bought my SS396 Chevelle from, Johan Gustafsson, kept the Chevrolet iron block engine that he used in the Chevelle. He also kept the aluminum heads, rods and pistons but put a new crank in it. Then he topped it off with a blower, and put it in the used Pro modified doorslammer he bought last year.
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Anders Stålklint. After selling my COPO 9561 I´m now a "postman" with the main project being a 1966 327 2 dr sedan Chevy II. 
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#2
09-22-2005, 02:02 AM
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Re: 7.4 liter 454 block
The question is: How much horsepower can you make with an ordinary Chevrolet 454 4-bolt iron block ?
He cracked the block, I might add.
__________________
Anders Stålklint. After selling my COPO 9561 I´m now a "postman" with the main project being a 1966 327 2 dr sedan Chevy II.
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#3
09-22-2005, 02:05 AM
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Re: 7.4 liter 454 block
I had a 30 over 454 with heavily worked oval port heads and a wild roller cam that dyno'd at 603 horse..that was pretty good 10 years ago. Gotta be low compared to others though.
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 <span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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#4
09-22-2005, 02:10 AM
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Re: 7.4 liter 454 block
Bob, that´s only 1400 hp from Johans 2003 hp !
Does anyone have anything closer ?
__________________
Anders Stålklint. After selling my COPO 9561 I´m now a "postman" with the main project being a 1966 327 2 dr sedan Chevy II.
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#6
09-22-2005, 02:30 AM
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Re: 7.4 liter 454 block
Yes Rob, that Harrell car of yours is awesome !
Are you using a factory 454 Chevrolet block, not an aftermarket one ? 
__________________
Anders Stålklint. After selling my COPO 9561 I´m now a "postman" with the main project being a 1966 327 2 dr sedan Chevy II.
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#7
10-03-2005, 08:16 AM
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Re: 7.4 liter 454 block
I know that back when it was NSCA vs NMCA,the NSCA drag radial class required production line engine blocks and cylinder heads.Troy Perez with his 3600# nova with a stock block 440 incher with 990 heads on it ran low 8's with crazy mph{over 165}.Later the rules changed and allowed better heads,and he built a 510 inch short block out of a stock block,but had traction issues with the big motor,and had a hard time dipping into the 7's with any consistency.He swapped the 440 inch shortblock back in with the new heads and went right into the 7.90's at just a tick under 3600#{he was 200# over the minimum weight}.He also was making mad MPH because he was doing it on 275MM radials{the class allowed 315mm but they didnt fit his stock chassis car}.To go 168 mph at 3600# required the better part of 1600 hp.He may have had a 2 bolt block with splayed caps thought.
As for me,I push just under 1000 hp out of a stock 2 bolt block with just main studs,and if my 3550# tank ever runs faster then 9.0 on raidals I will be very surprised{it has gone some 9.20's}.
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