Quote:
Originally Posted by 94cobra69ss396
You and I are talking about two different things. I'm talking about the piston to cylinder wall clearance and you're talking about the piston ring gaps.
Total Seal rings I bought for the Cobra showed to set the top ring at .0055 x bore, the second ring at .0035 x bore and the oil ring at a minimum of .015 for boosted applications. I set the top rings at .023, the second rings at .016 and the oil rings were .016 out of the box.
The Mahle rings that came with my engine kit were not file fit rings but the end gaps were all over the place. They ranged from .008 up to .016.
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Because I used Hypereutectic pistons on my current 400 engine, the end gap had to be big..026....but it works with the hotter Hypereutectic pistons.
The .004 per bore inch is general rule and is different for forced induction and Hypereutectic pistons........
