Are you using the new style ARPs that require the rocker stands to be machined? Or the old style that you grind some webbing out of the valve covers? Or a different brand altogether?
Cummins gaskets are best. They come in different thicknesses though. There is no difference between marine and standard anymore. A thicker gasket reduces compression just slightly and lower cylinder pressures which works well with injectables and advanced timing. A thinner gasket on the other hand increases cylinder pressures for a more complete burn and better throttle response and low end. If I ever pull my head agian I'll go back to a stock thickness.
I wouldn't put my hard earned money on a gamble with a Cometic gasket. They have not proven to be any better than Cummins, if anything they may be worse
dual K20s, are the old style still available? ill grind the webbing not sure what needs to be ground but ill fig. it out thanks so much for all you help hope i can return the favor. mike p.s. got a part #
I bought a set of the older style back in december, the shop I got them from just had to make some calls and see if anyone still had them in stock. I think one of the styles is call ARP 2000s but I can't remember which is which.
Grinding the rocker stands isn't a bad option, it probably works better. But you have to leave the stands with a machine shop for a few days :CRY: :$:
Make sure to bottom tap the holes before you install them with either type
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