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View Full Version : 18 degree v/s 23 degree


GETUSOME
02-28-2010, 09:51 AM
Have a set of 18 degree 617sl je pistons, 4.125, 400 inch stroke, 6 inch rod. Some say they will work with 23 degree head. True or False

mytmouz
02-28-2010, 10:54 AM
Not familiar with your pistons. Are they domed? If so, I'm not sure. IF they are flat tops, they should. I have a set of JE flattops in mine, 4.125 bore, 4.00 stroke, 6 inch rods. The pistons are 18 degree. The heads are 23 degree Brodix Track 1's. I didn't make any mods to the valve reliefs for them to work...

GETUSOME
02-28-2010, 01:13 PM
Sorry these are dome pistons, thanks for the comment.