Stock 351W Piston & Rod weight

ronzara · #1 (**permalink**) 08-31-2003, 06:49 PM

Does anybody know the approximate weight of Stock 1972 351W Pistons & Rods (individually) ???

This probably seems like a strange question, but I am trying to figure out if my engine vibration is related to the change of weight in the rotating mass.

My new Pistons weigh in at 615 grams each. < don't know about +/- grams

My new Rods weight in at 570 grams each. < came in set matched within 2 grams.

thanks
RZ

Jack21 · #2 (**permalink**) 09-03-2003, 08:15 PM

Ron,

Whenever you replace rod/crank/piston assemblies with non-OEM, exact replacement parts, or you're rebuilding a grocery getter motor for more strenuous use; always have it balanced. Best if you balance with flywheel and crank damper so it all spins correctly when you button it back up.