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Old Jan 13, 2008 | 12:28 AM
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factory594x4
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Question Clevor???

I have a 302 and I want to put my 400 heads on it. How hard is it? I understand I need a boss intake manifold, but that is not a problem. I have all the parts, so don't ask me why. (Just for fun really) I thought the only mod. was to block a water pass. here and open one up there??????
 
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Old Jan 13, 2008 | 12:39 AM
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You got it. You need to plug the head coolant ports on the top corners of the deck face, where the coolant flows back into the block on a Cleveland, then drill new ones in the intake faces on one end of each to let the coolant flow to the intake passage. You'll need 7/16" head bolts long enough to thread into the block thru the heads too. Then Cleveland type pistons are needed that will work on 302 length rods, unless you have a set of Boss rods or 289 length rods to use with Boss 302 pistons.
 
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Old Jan 13, 2008 | 12:42 AM
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Question

why is the piston an issue? Why the change?
 
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Old Jan 13, 2008 | 01:11 AM
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check out price motorsports for intake adapters.
 
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Old Jan 13, 2008 | 06:34 AM
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Originally Posted by factory594x4
why is the piston an issue? Why the change?
because of the cantered valves.....

check my sig....for the 357Clevor build....got a few vids there too...
 
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Old Jan 13, 2008 | 10:37 AM
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Right, in case you haven't noticed, the Cleveland's valves are not in-line like a Windsor head. Thus the valve reliefs in the piston tops are also different.
 
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