k-mart

iTrader: (5)

I'll be going to a set of AFR 205's milled to 59cc soon and I'm trying to decide if I should go with .040 Cometics or just stick with the stock gaskets. Using the DCR calculator here for my 232/240 .595/.608 on a 114+4 LSA cam, I come up with a DCR of 8.66:1 for stock gaskets and 8.93:1 for the Cometics. This is my first time attemting these calculations, so could someone double-check my numbers? Also, is the .27 gain worth it? Would I have any problems running premium at that ratio?

I'm planning on adding a small amount of spray eventually, too. Which gasket would be more reliable on the gas?

Thanks,

Kevin

DaveX

I would go with the 8.66. This is about where you want your dcr for a street car. But get some good MLS gaskets. I think you will have problems with 8.93 on pump gas.

k-mart

iTrader: (5)

You're probably right. Better safe than sorry. Thanks.

cws T/A

iTrader: (3)

Get the cometics and don't mill the heads as much .More material on the deck is always better . You'll also have a better quench to aid in fighting preignition .

k-mart

iTrader: (5)

Heads are already milled and the AFR's already have a pretty thick deck in comparison to stock castings. Even at 59cc, the deck is still considerably thicker than a stocker, isn't it?

JScamaro

iTrader: (6)

Since the heads are already milled I would do the stock gaskets.