I have a 340 block heads and crank but no connecting rods came with it. The heads are factory 2.02 j heads. The block is either a 70 or 71 I believe all 3 parts were from the same complete 340. The casting numbers on the crank are 2532457 with a symbol that looks like a square circle with the letter f and a final number 4… So 2532457 F 4? See picture.
Anyhow I need to find some connecting rods that will go with this crank, also will need a harmonic balancer. So what year or casting numbers for con rods should I be looking for. Also what type of harmonic balancer should I be looking for?
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