How far down are the pistons? A 360 uses 390 pistons with longer rods. A 352 is .050 smaller bore, with shorter compression height. If your engine is a 360, it will work. If it was a 352, the comp. ratio will be really low. Like 6:1 or so. If it was a 352, you can swap in the 390 crank and use the rods already in there. If it was a 360, you have to use the 390 rods.