Piston height?

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polkat

Post subject: Piston height?

PostPosted: Mon Feb 28, 2011 5:15 pm

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TBI Slant 6

Joined: Sun Nov 11, 2007 9:59 pm
Posts: 232
Location: Chico, CA
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So what is the standard piston negative deck height on the very early 70's 225's? The average seems to be .160" down in the hole. Does that sound about right?
________
Maryjane

Last edited by polkat on Wed Mar 09, 2011 5:47 am, edited 1 time in total.

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Doc

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PostPosted: Mon Feb 28, 2011 5:20 pm

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Guru

Joined: Mon Oct 14, 2002 4:32 pm
Posts: 4880
Location: Working in Silicon Valley, USA
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Yes, that is about right... but measure your actual engine to find your exact height.
I have see some engines go as deep as -.210 and some right at -.140.
Most are in the -160 to -.180 range.
Bottomline, actual static comprssion ratios were "all over the map" with a factory SL6.
DD