Red5Ltr

<DIV>I'm purchasing a set of replacement heads for my 93' Mustang. They are a stock head with a bunch of work done to them. The valve openings are as follow: 1.94 1.60 with a full port and polish to the exhaust chambers and they are a 64cc combustion chamber. I'm also running a E303 cam, do you think I will need to fly cut the pistons? I hope not because I don't feel like yanking the motor.</DIV>
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Thank you,</DIV>
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<DIV>John <IMG src=smileys/smiley10.gif border="0"></DIV>

bmorrisj

how much lift with that cam and rockers?

619socalstang

easier to change cam and push rods, rockers to mke clearance if poss. fly cut pistons are not a good idea, if needed get new pistons made to work wit setup.

Red5Ltr

.498 lift with the stock rockers. I think I might be safe if I go with a 1.6 roller rocker.

619socalstang

stock = 1.6

vfast

64cc's might want to shave them to get 60cc

Red5Ltr

I though the larger the combustion chamber the better? Am I mistaken?

bmorrisj

of course...if your going to add a supercharger real soon...lower compression.

Red5Ltr

I was thinking about another set of heads. The guy I bought these from said he thought they were around 58 to 60cc. Is that better? How much room should there be between the piston and the valve?</P>

86lx

100 thousandth on intake 120 thousandth on exaust </P>