Gen V heads on early 454 block

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10-01-2006, 12:50 PM

jdub

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Gen V heads on early 454 block

Will 088 heads off a GEN V 502 fit on a early 454 block with casting #361959

10-01-2006, 05:46 PM

BY U BOY

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Re: Gen V heads on early 454 block

Check Piston Clearance

10-01-2006, 05:48 PM

JCPERF

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Re: Gen V heads on early 454 block

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Originally Posted by jdub

Will 088 heads off a GEN V 502 fit on a early 454 block with casting #361959

10-01-2006, 06:12 PM

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Re: Gen V heads on early 454 block

JC could you give me the short on why?

10-01-2006, 06:19 PM

JCPERF

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Re: Gen V heads on early 454 block

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Originally Posted by jdub

JC could you give me the short on why?

The water jackets are not compatible.You can use mark4 heads on a gen5or6 block but not the other way around.

10-01-2006, 08:32 PM

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Re: Gen V heads on early 454 block

OK... will GEN V heads fit on GEN VI block? Thanks.

10-01-2006, 08:36 PM

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Re: Gen V heads on early 454 block

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Originally Posted by jdub

OK... will GEN V heads fit on GEN VI block? Thanks.

Yes

10-01-2006, 08:42 PM

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Re: Gen V heads on early 454 block

thanks

10-02-2006, 02:26 PM

jeffswav

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Re: Gen V heads on early 454 block

I was told the same thing JC said. I am running Mark IV heads on Gen V Block, so far so good. No overheating at all.

10-02-2006, 04:00 PM

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birdog

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Re: Gen V heads on early 454 block

Just buy my fresh MKIV style 188 heads...

Frsh with Inconel/Stainless valves..ready to run

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