Be sure your putting the rod and main cap on correct. Remember tang to tang. If one is backward it will bind up. Also some one mention the rod having cracked caps, not true on the L31 vortecs. All rods are the PM and are of standarad chevy.
'80 442 Vortec swap won't run...
- Thread starter HotRods442
- Start date
Well 1-4 have arrows on them, point to front, 2, 3, & 4 stamped on top... hard to get wrong, and same with rods, given they are different on each side...mirror each other on every throw... notch on crown toward front, hypereutectic flattops, thinner low tension rings... roller cam, etc... pretty neat setup for the final hurrah of Gen 1...
1-4 with arrows are the main caps. The rod caps are not marked from the factory. I have always marked the mains 1-4 in the order that they came off the motor. Some mains for the factory are numbered and some are not. The same goes for the rods Tang to Tang 1-8 these are not marked with a number from the factory. All rods and mains must go back the same way they came off.
These mains are stamped, rods aren't, but I keep them in order, also numbered with a sharpie on piston tops and caps, aside from boards I keep them on, in order...
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