243 heads on a 408
03-24-2013, 04:17 PM
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243 heads on a 408 So im going with a set of 243s that flow 313 and 234 at .600 not the best head but good enough to get the engine back into the car and have some fun until I c an get some good aftermarket heads. Question is if they are milled .020 and running a wiseco 6394ra3 n02 piston what will cr be and with what thickness gasket? Trying to keep it under 12.1 so i can still run pump gas.
03-24-2013, 04:22 PM
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03-25-2013, 11:57 AM
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Need to know your intake valve closing point on your cam, how far in or out of the hole your piston sits at top dead center and the exact cc of your heads to give you the right answer.
I'm running 12.5:1 scr with 8.22:1 dcr with full timing and 92/93 pump gas with no problems.
I'm running 12.5:1 scr with 8.22:1 dcr with full timing and 92/93 pump gas with no problems.
