LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Piston ring gap and bearing clearances...

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Old 08-23-2011, 09:26 PM
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Piston ring gap and bearing clearances...

I am putting new piston rings in and I'd like to know the gap. My manual doesn't get into an internal breakdown of the motor (haynes) and I can't find a sure fire source online. I came up with this, but I am not sure if it's correct.

Can anybody confirm that this is correct?

TOP COMPRESSION PRODUCTION: .010-.016 IN
2ND COMPRESSION PRODUCTION: .018-.026 IN
OIL RING GAP PRODUCTION: .010-.030 IN

I would also like to know what the proper bearing clearance is for my bottom end and I can't find that anywhere.
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Old 08-23-2011, 10:15 PM
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Re: Piston ring gap and bearing clearances...

LT1 engine specs from my website.
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