1972 Dodge Colt
Good question, I have never checked that.
I run hardened washers under the bolt heads, they are .1225.
I only cut .090 +.050, .14 total.
This picture show the head bolt on the head, plenty of thread.
You can almost bottom this bolt in the block deck face.
Just a couple of threads showing.
The fel-pro composite has a bore diameter of 3.5235 on the gasket I have.
The Aussie-Speed big bore measures 3.6520.
Here is the big bore laid over the felpro.
You can see the 2 fire-rings.
Good question, I have never checked that.
I run hardened washers under the bolt heads, they are .1225.
I only cut .090 +.050, .14 total.
This picture show the head bolt on the head, plenty of thread.
You can almost bottom this bolt in the block deck face.
Just a couple of threads showing.
The fel-pro composite has a bore diameter of 3.5235 on the gasket I have.
The Aussie-Speed big bore measures 3.6520.
Here is the big bore laid over the felpro.
You can see the 2 fire-rings.