Alexandre: Insert bearing connecting rods are as follows:
54 - 55 235 forging/GM part number 3701491
56 - 63 235 forging/GM part number 3836410
54 - 55 261 forging/GM part number 3702448
56 - 63 261 forging/GM part number 3836456
All these rods C to C = 6.8125 inches.
Large end (stock bore) = 2.4372 inches.
GMC 302 forging part numbers 2135419 (early)
and 2341204 (late)
These rods C to C = 7.000 inches.
Large end (stock bore) = 2.4568 inches. :rolleyes:
