hi all. im most the way through my build im using a sierra 4x4 floor pan and most the running gear but im only going rwd not 4 wheel and using a rs2000 16v engine and a type 9 gear box

the problem im having is when fitting the starter motor the engine wont turn over ie the starter just sniping and then when i put a ratchet on the crank pulley bolt the engine wont turn undo the starter and it turns freely

im using a dohc flywheel from the 4x4 sierra and the starter i tryed a pinto one today and still the same any help will be great thanks dan