head gaskets

[tclancy]

I built a small block 454 cid with 14.5:1 compresion needing to find a better head gasket, bore is 4.250" curently useing fel pro gasket #1036 works but does'nt last long.
also shoting 150 shot N.O.S.

[zipper06]

I use SCE copper with the embedded steel o'rings, bought from Good Viberations, but the MLS steel gaskets are also good. i think both are better than the FelPro gaskets especially with that big of a bore.

JMO

Zip.

[OneBadGMC]

I built a small block 454 cid with 14.5:1 compresion needing to find a better head gasket, bore is 4.250" curently useing fel pro gasket #1036 works but does'nt last long.
also shoting 150 shot N.O.S.

Is it not lasting long because it's lifting the heads, burning the ring, or what?

Are you using studs or head bolts?

[curtisreed]

.150" between cylinders is not much material. :shock: :shock:

[shawnp]

Cometic Head Gaskets are hands down the best gasket on the market.

[oldandtired]

Cometic Head Gaskets are hands down the best gasket on the market.
x2. They are all I will run. Dave

[tclancy]

Thanks to all that answered.

To Zipper06 I'ved checked SCE Copper and their largest SBC Bore is 4.200" and Cometic MLS said the largest they can go is 4.230". Thanks anyway and to oneBadGMC I'm using head studs torqued at 80ftlbs as instructed. The Felpro gasket doesn't burn the ring out, it just starts loosing seal and lets combustion into the water jacket. But still running great at 5.70's in the 1/8 mile at 120MPH. I have checked the head studs & nuts and they stay torqued. The Felpro gaskets just weren't designed for this kind of abuse. I just change them and race on.

Thanks again.