Hello,
I have a set of 360 mag pistons, 7 from engine and 1 from another engine. One was damaged and I bought a used piston/rod on ebay.
So I have gone through and weighed them on the work scales. (counting scales) and these are the weights in grams.
1354
1352
1353
1359
1350 - This is the piston from ebay
1350
1350
1354
So we have a 9 gram weight difference, I have no idea what the factory weight tolerance are for a 360 mag, I would suspect that I should be able to bolt up with my 1350...
360 Magnum Piston Weights - Factory Balance