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Author Topic: Witch 454 is better?  (Read 2321 times)

Offline 454c10

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Witch 454 is better?
« on: February 04, 2015, 09:53:05 PM »
I have a 1984 454 outa a rv or a 1976 gmc that has a 454 im not posative if its a 70s 454 but hope it is what would be better to build  or whats the pros and cons?
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Offline Shifty

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Re: Witch 454 is better?
« Reply #1 on: February 05, 2015, 11:37:12 AM »
Either would be fine for a build, I'd just watch for core shift on the 70's block. 
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Offline Engineer

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Re: Witch 454 is better?
« Reply #2 on: February 05, 2015, 06:29:15 PM »
If either one is a 4-bolt main that is the one I'd build.

The '76 will most likely have better breathing heads.
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2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

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