This last time I went w/ a .043" top, 1/16" 2nd and 3/16" oil ring on my new pistons. New slugs and fresh bores sure seems to have made this old motor run better.
Fresh motor check-out/break-in pass earlier this year it ran 9.73 at 139.6 mph w/ only a 1.43 sixty foot. This was all motor w/ a real tight nitrous converter and 3.54 gear.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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