thats sweet they will drill em and set em up for me, so all i have to do is bolt em up or will i still have to machine the block?

 

Yes, I beleive youpull the CHI setupout of the box and slap them on (almost).

Looking back on my Cleveland build (I used CHI 2V heads), I would build up a Clevor with what I know now.


Thats a pretty trick looking Boss intake, would like to find one of those on my doorstep. That thing has to be worth some money.

I'm going to try to post a picture of the crossover...

 

Cleveland 2V


Cleveland 4V

Windsor

These should help out a bit...

 

These pics dont show the ENORMOUS size difference between the 2V and 4V, and how much larger the 2V is than the Windsor. The 2V gaskets outer edge around the ports will fit inside the 4Vs ports.. its not a small difference.. Using a Windsor intake would be like feeding air into a sewer pipe from a garden hose. Additionaly the difference in deck height means the intakes are different widths, and the bolt holes are not the same. To do it right it takes a dedicated intake, and if you are going to all the trouble then you want to do it right.

One of these days I will get to taking pics and measuring everything to illustrate the differences.

Also there is more than just port mismatches and intake crossover issues. You need to have Cleveland valve reliefs in the pistons. They are on the outside edge rather than in the middle like a Windsor. So you cant just slap a set of C heads on a stock W block, the valves WILL hit even with a stock cam.

Check out the pistons in the block, they have notches on the outer edge. That is to clearance the canted valves. The last head is a 302, the W uses the same layout and valve arraingement. The top of the other head is the way the valves are in a Cleveland. They arent in a line, they are canted or twisted off the centerline, so they need different pistons. you can see where the valves are in relation to the centerline of the head in the chamber pic. These are open chamber heads from a 400M, but they bolt right on a Cleveland. The valve angles and port size are why Clevelands are capable of incredible power.

The front of the block shows how the water crosses over in the block rather than the heads. There is a square hole at the top of the gasket that needs to be modified in a C head to fit a W block. When I get the time to tear down the 351W, I will take pics of the mismatch just bolting the heads on makes.

it is not insurmountable, it isnt easy like bolting on some AFR heads, but it is simple and effective. The best part is 2V heads are cheap and plentiful since they came on 351/400Ms for a long time. Make the changes, get the intake, and have a really hard running 302, 347, or 351 with stock heads. For the ultimate in power, get the CHI aluminum heads, those things flow like a big block head but with small block velocity. They make serious power.

With 5 302s layin around here the idea of using a spare set of 2V heads sounds good to me. Might be fun in the 4x4... or a Maverick... or a T bucket.. who knows..

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This is the 302 head I mentioned. the file was too big to put with the others.. See how the valves are all lined up one after the other? You cant see how small the ports really are either, the difference is astonishing..

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heres everything you need to know http://www.themustangshop.com/clevor.cfm most dont do it anymore since most aftermarket heads work great

 

well instead of me doing that i posted a engine a while back that was 2500 it was a 302w with cleve 2v heads. it made 400 hp. people on here said it wasnt worth it. but it seems to me that with the amount of drilling and machinig i will have to do wit hteh block it is.

 

you gotta use some mean pop ups to get a decent compression when using the cleve 2v heads on a 302.... not as bad when building a 351. also that intake was made by umm.... B&A or something like that, they had a Street Boss, and a Track Boss for the 302's and only the one intake for the 351's. they have the physical dimentions of a W intake but the port sizes of a C intake. there is a few things that need to be drilled in the deck surface between the block and heads, one of them is what i circled in the picture below..

 

one question, i would assume if a block is drilled for the 2v heads it will fit the 4v heads too right?

 

and which would allow me to use a bigger cam. if i put 2v heads or 4v.