yet another question!
02-25-2008, 04:41 PM
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yet another question!
what would the CR be with F77E GT40P heads on 91 shortblock? thanks[sm=hiya.gif]
02-25-2008, 06:39 PM
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RE: yet another question!
go to google type in gt 40 heads cc and i think the first one pops up is out of MF that should answer your ?
02-25-2008, 07:53 PM
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RE: yet another question!
thanks for the tip, but it didn't work.
02-25-2008, 07:54 PM
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RE: yet another question!
while were at it, how bout CR on 86 flattops
02-26-2008, 08:48 PM
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RE: yet another question!
anyone?
02-27-2008, 09:31 PM
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RE: yet another question!
no info??
02-28-2008, 12:18 PM
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RE: yet another question!
Assuming you have the factory forged pistons (TRW L2488F ) with the F77E AA GT40P heads thathave a 59.8cc (60cc) combustion chamber would give you a static compression ratio of about 9.8 to 1. The 1986 302HO also used the same piston, so the compression should be the same.
03-01-2008, 10:25 PM
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RE: yet another question!
sorry, but the 86 does not have the same pistons as a 1991. they are flattops without any valve relief. should be a little higher cr if valves clear, just wondered what this cr would be.
03-03-2008, 07:20 PM
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RE: yet another question!
anyone used gt40p on 86? any idea of c/r?
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