[767Jockey]

Actually, the state of the art now are the aftermarket aluminum Cleveland heads coming out of Australia. It is rare that you will find any aftermarket aluminum Windsor heads that have the flow capacity and the port velocities of these heads. If you look at all the high horsepower Engine Masters small block Fords almost every one of them have Cleveland heads on them. They're also great for the street as well because the ports not only flow massive amounts of air but in the modern heads the flow velocities are way up as well. The reputation of the old Cleveland heads was that they were dogs at low RPM's, and to a certain extent that was true. The ports were huge, they flowed enormous amounts of air for a small block head, and with only 351 cubic inches pulling on them, the port velocities just weren't there.

However, with the advent of cheap and easy stroker engines, put 400+ inches of small block under the old iron heads and crazy horsepower starts happening. Keep in mind that the old 4V heads are essentially a big block head - huge ports, canted valves, etc. If memory serves me correctly it's the only factory small block head with canted valves. The "old school" iron OEM Ford heads will make almost as much power sitting on a stroker as most modern aluminum Windsor heads, and if you put some Aussie aluminum state of the art Cleveland heads on that engine, virtually nothing can touch them.

Why Australia, you may ask? Because just as the Cleveland was phased out here in the states for cost reasons and became somewhat rare, the Cleveland was the only small block Ford offered down under, so all the development on the Cleveland was down there because the Cleveland was the only real game in town - to a large extent it still is. I'm sure some of our Aussie friends can chime in here and fill in the details on that.