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I've been running a .030 over Race Engineering short block for three seasons with an off-season rebuild each year to replace rings/bearings and hone the cylinders. Bores are still good and rings seal well but starting to get a little piston slop and think it's time to go to .040 over. Block is small journal, strapped mains, 5.7 rods, Weisco pistons with metric ring package. My question - is it safe to go .040 over on these blocks? Have had differing opinions all around. Figured some experts on here may have some good advice.
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Have never had any problems with bores up to .040.We have had issues with .060 pistons.Most every one around here runs .040 blocks even in the big stroker combos. -
If overly concerned try to find someone that can SONIC CHECK each cylinder for wall thickness. That way you will know how much you can safely overbore.
BillComment
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.040 over block
Thanks guys, especially Milford motorsports. I value your opinion.Comment
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