compression ratio ???? 460
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compression ratio ???? 460
74f100 November 17th 2012, 9:47 pm
i have 1969 460 going to put sealed power flat tops 30 over in with c9ve-a heads with standard deck height does anyone know about what it will be i'm thinking around 11.1
74f100- Posts : 28
Join date : 2012-11-17
Location : keystone heights fl
Re: compression ratio ???? 460
Paul Kane November 17th 2012, 10:50 pm
With Sealed Power flat tops, about 0.015" below an OEM early block deck is typical, clean up the heads during the rebuild, you'll be approximately 11.25:1.
Paul Kane- Posts : 1043
Join date : 2009-09-15
Location : San Francisco Bay Area -
74f100- Posts : 28
Join date : 2012-11-17
Location : keystone heights fl
Re: compression ratio ???? 460
74f100 January 6th 2013, 7:38 am
got the machine work done took 00.8 off the heads engine guy said about 10.75.1 comp ratio
with the flat tops
with the flat tops
74f100- Posts : 28
Join date : 2012-11-17
Location : keystone heights fl
Re: compression ratio ???? 460
bbf-falcon January 6th 2013, 11:42 am
I was going to say 11.5,but Paul is lots more experienced than me. 
bbf-falcon- Posts : 8995
Join date : 2008-12-03
Location : Jackson, Ohio
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