MBDiagMan

Sorry but this is a Ford Forum. Big Block and Small Block are Brand X terms. In fact I get a little queazy seeing the 289/302/351W engines referred to as Small Blocks due to potential confusion, but for the small part of it, the Small Block Ford term will get you by. By referring to the OTHER engines that use the Cleveland heads as Big Blocks you are confusing the issue. Going by that remark you could consider the Cleveland and M series with the FE or the 385 engines. The Ford world is already confusing enough.

The Cleveland heads were indeed used on the smallest of Ford engine blocks on the Boss 302. For the best iron heads for your little Ford the Cleveland can't be beat. Using them, however, involves lots of special parts such as an intake and pistons with the correct valve reliefs.

6mustang6

I call a motor that doesnt resemble anything of the windsors a big block. That includes the modifieds, FE engines, etc. Maybe a cleveland not so much, but you cant look at a 352,390,460, etc. and tell me it dont LOOK like a big block. My 352 have BIG block heads with HUGE valves. Maybe the smallblock/bigblock confuses you guys, but not me. I know which engine is which.. lol. It's ok.
anyway, I was still saying.. during production cleveland heads were touched by God. Unfornuately he left out the... 289/302/351w heads.... which i can almost say are the worst design i have ever worked with. I've fooled with a few Brand X heads and they make good power and already have big valves and flow better.