compression ratio ???? 460

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compression ratio ???? 460

Post  74f100 on 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
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Re: compression ratio ???? 460

Post  Paul Kane on 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.
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Re: compression ratio ???? 460

Post  74f100 on November 17th 2012, 11:29 pm

thanks man
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Re: compression ratio ???? 460

Post  74f100 on 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
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Re: compression ratio ???? 460

Post  bbf-falcon on January 6th 2013, 11:42 am

I was going to say 11.5,but Paul is lots more experienced than me. Smile

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