318 crankshaft specs

T67POWER,

okay...I looked at my crank and compared the numbers in the book.

My crank has a casting of: 3751841, Which the book lists it as a 1974-1991 318 cast crank, and approx. 54 Lbs.

All my rods have this casting: 2406782, Which the book tells me they are from 1964-1971 273/318 rods and approx. 726 grams

I agree that cast 318 pistons weigh 592 grams, add a little more for the .060 oversize which mine are. (don't know what brand, very limited markings, and they are cast)

So as we can see, my rotating assembly is from all different years, but shouldn't matter, as long as it was balanced together. I'm guessing that MAYBE it was balanced by the last rebuild because there are holes drilled in 3 different counter weights.

I am aware that I will need a rebalance if I get a new crank, and yes, I am getting a new harmonic dampener, and will put a new crank drift key....