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Old 10-06-2012, 03:44 PM   #5
GTX JOHN
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Join Date: Jun 2009
Location: Boulder City, Nevada 89005
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Default Re: Stocker Pistons....Pontiac

My sons old 318 Engine was a TRW engine with lighter weight pins,

It would run about .8 - .9 under in decent conditions under current indexes.

The lighter better pistons with TriCity Rings were about .15 to 2 Tenths faster,

but half of the difference I would probably attribute to the rings and half to

the pistons.

Last edited by GTX JOHN; 10-07-2012 at 03:38 AM.
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