Head gasket bore diameter?
Thread Starter
Joined: Nov 2011
Posts: 1,710
Likes: 228
From: Sonoma Co. Ca.
Head gasket bore diameter? It seems a little bit too close to the edge...a 3.910 headgasket bore on an engine with a 3.905 cylinder bore. Anyone ever do this? is it ok? It's only .005 total and .0025 away from being in the cylinder. Some have told me yes, it's ok, some question it. MLS by the way, not composite.
It works well! We sell a lot of the Cometic 3.910" gaskets for our 347's and 383 assemblies with 3.903-3.905" bore!
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
I like it. With Cometic quality, that will work fine and it's actually ideal in terms of cylinder fill contamination. The crevice created by a larger gasket allows spent gases to "hide" in the chamber, contaminating the next fill. Not a big horsepower loss but effects emissions. If you do get your vehicle checked, you gasket choice might work in your favor if you're on the border.
