Head gaskets

Reply Subscribe

Thread Tools

Search this Thread

Mar 3, 2008 | 10:14 PM

Bowerss2

Thread Starter

Safety Car

Joined: Apr 2007

Posts: 4,435

Likes: 9

From: Kalamazoo Mi

Head gaskets

I am putting in my top end kit, and am wondering what the stock bore of a 1980 l48. I am ordering the new gaskets, thanks,
Steve

Mar 3, 2008 | 10:17 PM

Scott Marzahl

Le Mans Master

Joined: Apr 2005

Posts: 6,339

Likes: 416

From: Seattle Area WA

Is your goal to achieve some more compression? Are you looking for a particular thickness? Is this for cast or aluminum heads. The standard bore is 4.0"

Mar 3, 2008 | 10:42 PM

Bowerss2

Thread Starter

Safety Car

Joined: Apr 2007

Posts: 4,435

Likes: 9

From: Kalamazoo Mi

I am going to put a thinner one in there to get the compression up. To be honest i have no idea which head gasket to get. I am getting brodix ik180s, For example the bore measurement that is on the gasket, any suggestions?

Mar 3, 2008 | 10:47 PM

Scott Marzahl

Le Mans Master

Joined: Apr 2005

Posts: 6,339

Likes: 416

From: Seattle Area WA

You can't go wrong with the GM head gasket, P/N 10105117, .028" with stainless steel faces for aluminum heads. Its what is used on the GM crate engines with al heads. Nice pick on the IK180's!

Mar 3, 2008 | 10:51 PM

Bowerss2

Thread Starter

Safety Car

Joined: Apr 2007

Posts: 4,435

Likes: 9

From: Kalamazoo Mi

thanks, i have basically gone nuts. my engine build started as a mild build. I am now putting dual quads on......

Mar 4, 2008 | 03:15 AM

RIJVETTES

Burning Brakes

Joined: Aug 2006

Posts: 1,155

Likes: 0

From: San Diego California

You spent the big bucks for a good set of Brodix heads- you might be advised to call them for a recommendation on a head gasket before you bolt them to the block. Hope they work out good for you.

Mar 4, 2008 | 04:27 AM

JustinD

Safety Car

Joined: Jun 2005

Posts: 3,841

Likes: 0

From: Inver Grove Minnesota

I got these: http://store.summitracing.com/partde...4&autoview=sku to boost my compression.

Mar 4, 2008 | 01:33 PM

lincoln9

Advanced

Joined: May 2006

Posts: 71

Likes: 0

From: Minnedosa MB

First find out how far your piston sit below the deck, probably .025 but if you check, you'll know for sure, if you need .015 thick head gasket so you have .040 qwench which is what you want. Then figure out how many CC's you pistons are dished so you can can order the right combustion chamber heads. You don't want to go over 9.5:1 with iron heads or 10.5:1 with aluminum on a street engine. Now start pulling your engine apart and make the measurement needed, so we can give you accurate advice on the parts you'll need for this build.