Quote:
Originally Posted by Scott R
OOOO, this is cool, know anyone that's done this? How was the motor after the ring replacement, did it last? (I happen to have one of these that needs rings or a motor currently)
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I've had it done to a half dozen motors. It turns out great.
As long as the pistons and bores are within spec (roundness, taper, wear) then fitting the new rings really helps. Drilling additional oil "drain back" holes helps too. And cleaning the pistons (ring-lands and oil-holes) helps all on it's own.
I've also replaced pistons with stock size on good bores when the piston skirt coatings were bad.
And I've bored the block first oversize and fitted new pistons.
All have given great results. One has almost 80K miles since a ring-only job (w/ oil hole mod) and is in the normal quart-or-so between oil changes range.