Cometic Head Gaskets MLS 3000GT & Stealth DOHC 6G72 & 6G74


Cometic MLS Head Gaskets
for DOHC 6G72 & 6G74
Various Bores & Thicknesses

* Sold Individually, you must order 2 per engine *

These are quality Made in the USA Cometic MLS (multi-layer-steel) head gaskets offered in their entire selection range so you can get exactly the bore size and thickness gasket you need to suit your specific engine build and desired compression ratio. Using alternate thickness head gaskets is a common practice to help target a specific compression ratio or to compensate when heads or the block deck has been shaved to ensure a proper/flat mating surface.

You can run a thinner head gasket to help raise the compression ratio on your engine, or a thicker one to lower it.

You can run a thicker head gasket to compensate for decking/surfacing the heads if you want to maintain the same compression ratio.

You typically MUST run a thicker head gasket if you deck the block causing the pistons to protrude past the top deck of the block as pictured here.


The gasket thickness is measured toward the outer edges of the gasket where the outer layers are flat/flush with the center layer.

Gasket bore sizes range from 91.5mm to 95.0mm with thicknesses from .027" to .140".

Size Notes:
The stock thickness of the 3000GT/Stealth DOHC is .051".
Stock bore of a DOHC 3000GT/Stealth is 91.1mm.
Stock OEM 6G72 head gasket is MLS and has a 92mm bore.
Stock bore of a 6G74 block is 93mm.
Stodck OEM 6G74 head gasket is composite and has a 94.5mm bore.

These gaskets will work with the DOHC 6G72 and 6G74 blocks typically used for the conversions.

Please note these are special order and have a production lead time of 5-7 weeks for arrival to they are special order, they are NOT RETURNABLE

Sold individually.


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