Thread: 390 vs 351c or 460 ?

Tweet

If that is a 351C it will have a 2 or a 4 beside the valve cover on one end or the other of the head right in the corner looking down at top of valve cover, if not it's not even in the cleveland family.
In the case you don't see it, someone was shooting sunshine up your you know what.
No modifacations are needed in the 69 for the shock towers, they came with big blocks installed in them from the factory.the 351 windsors came in those I don't think the 69 Mach came with 351C, I could be mistaken but the clevelands were built from late 69 to early 73. more then likley
if that came in there it would be a 351W. You can stroke the piss out the 351W and have a good weight for street racing or handling. 351 C or 351 W are both great motors and you can stroke both and were know for there performance back in the day. keep what you got and run it but put some sub frame connecters on the body or you will twist the frame. Run some Edlebrock heads, one step up from their bottom head, they work great. Kurt