I run a 67 400 YT block with a 495 Eagle stroker kit (4.5 stroke , .065 over Mahle pistons and 6.8 rods ) . Like Mick said , after a bore and deck there is not much chamfer left and
they were not an issue with my build. Currently have over 900 1/8 miles passes on it and its still running strong .
Glenn
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