LS Swap....No Spark

The motor cranks, cranks, and cranks,.......its got fuel.....but no spark....its got a new distributor.....but using an older coil....what are the chances.....or am I overlooking something.

replace the coil and check your wiring.

check your grounds, are you getting any codes ?

did you do the swap in a dx or si/hf?

are you using old spark plug wires? or ones meant for a diff engine? i know i tried using my a6 plug wires on my z6 when i swapped it and it would crank and crank and crank, got some z6 wires and it fired up no problem.