Originally Posted by alcoolaid
Built a few engines using oem gaskets, 29 psi no problems. Went cometic on most recent build and pushing coolant at 25psi. I'm not the only one too. Going with cosworth gaskets now. There's an article on motoiq comparing actual clamping load on oem vs cometic vs cosworth.
I saw that article recently and the pics of clamping force between the three. Looked like cometic had the least clamping force on the clamp ring around the cylinder. I thought I read that cosworth was just coated cometics or is that wrong? I have used cosworth in the past with no issue at high boost. Guess ill be giving them a call.
Let's talk studds. Is there a better option than the standard ARP? One that doesn't need to be tq higher than 90 ft/lbs as that is what I had the tq plates at when it was honed.