[Blackwizard222]

I put compcams grind for tbi 350 in my friends 92 350 half ton c1500 pickup (auto, TBI). put it all back together and im sure i did everything right. But when i told him to bump the starter so i could put the distributor in the crank doesnt move, the front accessories spin but the pistons dont reciprocate. is there like a clutch that engages the crank? i dont understand it, i pulled off the converter cover and the flexplate spins when the starter turns and so do the front accessories but no recipracating??? if the flex plate is connected to the crank there is no way this could happen without the pistons moving. My only thought is there is a clutch or sumthing that has to engage the crank on this newer small block.