12g1303 crankshaft

Post by **morrisfan** » Wed Jul 30, 2008 6:18 pm

6 bolt crankshaft part number 12g1303 does anyone know what a series engine it fits i think it could be a marina but not sure

Post by **bmcecosse** » Wed Jul 30, 2008 7:49 pm

If it's 6 bolt - it will be a 1275 crank for sure and can be used in any 1275 (in-line) block. The big-end sizes will determine what con-rods are required. Smaller size (1.625") needs the Cooper S type rods, larger size 1.75" needs the less desirable (but still 'ok') Marina type rods.

Post by **bmcecosse** » Sun Aug 03, 2008 6:24 pm

I looked at my spare - 12G 1303 is a Marina crank.