Author Topic: Piston to bore clearance?  (Read 2019 times)

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Offline Tom Price

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Piston to bore clearance?
« on: September 15, 2015, 10:58:40 pm »
What is the typical min/max on piston to bore clearance?  31ci AVS if it matters


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Offline George Herrin

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Re: Piston to bore clearance?
« Reply #1 on: September 15, 2015, 11:11:47 pm »
.0025 max for me
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Offline Tom Price

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Re: Piston to bore clearance?
« Reply #2 on: September 15, 2015, 11:17:35 pm »
Thanks!


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Offline chavez

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Re: Piston to bore clearance?
« Reply #3 on: September 15, 2015, 11:20:57 pm »
Fresh bore, new piston..... .0035-.0045" depending on rpm, err on the looser side the hotter the engine.  And that's figuring the Teflon coated avs piston. Non avs, I'd add .001".  Some say looser, but I'd rather wear it in than start half wore out. Some say tighter, but you better break it in right....
Travis Callaway