compression
04-08-2009, 04:22 PM
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compression
what is the compression ration for a stock 1990 454 fuel injected
04-08-2009, 05:10 PM
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About 7.6-8 to 1 ,not much
04-08-2009, 05:14 PM
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i want to up the compression just for a stree rod its in a ss truck what can i do
04-08-2009, 05:25 PM
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well if ur lookin to rabuild just have some head work done and get some flattop pistons
but i fnot u could just buy some new heads with a smaller combustion chamber
and if u dont want to spend that money u could even cheap out and just take the heads and have a valve job done and have them mill the heads down a few ccs
04-08-2009, 05:29 PM
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i was thinking of buying new heads and cam but don't know what to go with
04-08-2009, 05:33 PM
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dart iron eagles are the best for the money
but world makes a good head too and they're a lil cheaper
and cam wise i say a comp or voodoo prolly around a 520 lift
04-08-2009, 05:37 PM
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thanks that should wake it up some. still trying to figure how much horse power it came with from factory
04-08-2009, 05:39 PM
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i figure it prolly came with about 400 give or take a few
04-08-2009, 05:44 PM
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thats what i figured to but the heads they put on it suck got to wake it up and let it breath if u know what i mean
04-08-2009, 06:33 PM
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does it have headers, true duals, intake, etc.