Arias Windsor Ford Hemi Heads

Hi GT fans, Seems Shelby via Denbeste is making a hemi head for the Ford Windsor engine. Check it out. ranger jim
 
They are available for the LS series engines too.

Maybe a pair of these could top off that flat plane crank LS that is being discussed on this forum ;)
 

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Jim Rosenthal

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But I think Arias actually exists, don't they? I mean, they are a real company and all and actually BUILD stuff, unlike certain others I could name.....

Mind you, how much more power would you get from a 351 with hemi heads versus good wedge heads? And would it matter in a GT40 or a Cobra? I suspect not.
 
While I haven't posted much, not any really, since joining but this one caught my eye.
Those heads look killer. The intake ports are almost big enough to stick my hand into. Which leads to my next comment....look at the HP and Torque outputs in the article. All that power is waaaaay up in the RPM band. A real dog down low too, only 296 HP at 3500. Not useful for anything but a drag engine. Heads with ports that big only work at high RPM.
If it had smaller ports and valves it would work for a road course or hot street engine.
Looks cool though.

One could go for the aluminum CLEVOR heads by Edelbrock. Same valve arrangement as the Cleveland heads but designed to fit the Windsor block.
 

Doug S.

The protoplasm may be 72, but the spirit is 32!
Lifetime Supporter
One could go for the aluminum CLEVOR heads by Edelbrock. Same valve arrangement as the Cleveland heads but designed to fit the Windsor block.

Not exactly, they ARE the heads for the 351-C. They will fit the Windsor block (yes, both the 302 and the 351) with a few modifications as the bore sizes, spacing, and bolt patterns are identical.

What is different, however, is the intake system. The Cleveland intake manifolds are dry, but the Windsor block requires coolant flow through the manifold, so a special "Clevor" intake is necessary to make the heads work with the coolant routing used by the Windsor block, and some modifications have to be done to the intake manifold face of the heads. The Clevor intake manifolds are available from Edelbrock and a few other very difficult to locate sources, most of which seem to be in Australia.

The Clevor is a great engine due to the canted-valve arrangement and does very well in the Popular Hot Rodding Engine Masters series competitions. Not a hemi-head, though...in fact the better power is produced by the heads with the quench-chambers. The 2-V heads and the 4-V HO heads had open chambers...not bad (but, not great, either) with the smaller 2-V valves and intake ports, real dogs with the huge valves and intake ports in the 4-V HO engines. For street use the Australians had a quench chambered 2-V head that worked quite well, they are available here in the U.S. from Aus Ford Parts - Aussie 351 Cleveland Specialists
Cheers!

Doug
 
Doug,
I know the Cleveland heads don't have a hemispherical chamber. The BBC Chevy heads have similar arangement as the Cleveland.
In years past to mount the Cleveland heads on the Windsor you had to drill coolant passge holes in the heads using head and intake gaskets as templates to match the block and and intake. Steam holes too if I recall. Also had to plug one or two that didn't match or weren't necessary. Now you can buy them already set.

In a recent magazine, don't recall which one, they did a dyno test of the Clevor vs 4V and 2V Cleveland heads. I believe they had a 302, or somewhat larger, built for the test. The 2V heads worked the best for the combination they had set up.
Now I have to find the article to get my facts straight.

Bob
 
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