90 351W pistons
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90 351W pistons
Looking to rebuild my 1990 f-250 351W with some 9.1 comp. pistons. Was wondering if this would effect the computer, because stock compression is a mere 8:1. The truck is a little lazy for my taste and want a bit more power. Easiest way is with compression.
Jason
Jason
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From: Gravel Switch, KY
90 351W pistons
I am pretty sure your engine should have 8.8 to 1
compression so bumping up .2 would make little difference. Many pistons are offered by PAW that will give you around 9.5 to 1 compression which I would consider max for cast iron heads with pump gas. I don't think it would adversely affect your computer but I am open for correction here.
DannyP
89 F-150 4x4 former EFI I-6 now carbed 351W, Edelbrock heads,cam,intake,carb.
MSD 6A, T-18 but looking for a ZF. 3.55's.
compression so bumping up .2 would make little difference. Many pistons are offered by PAW that will give you around 9.5 to 1 compression which I would consider max for cast iron heads with pump gas. I don't think it would adversely affect your computer but I am open for correction here.
DannyP
89 F-150 4x4 former EFI I-6 now carbed 351W, Edelbrock heads,cam,intake,carb.
MSD 6A, T-18 but looking for a ZF. 3.55's.
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