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Search took 0.00 seconds. Search: Posts Made By: 25stevem
Forum: Pontiac - Race 11-27-2022, 09:00 PM
Replies: 17
Views: 2,032
Posted By 25stevem
I wonder if that is due to the sleeve not being...

I wonder if that is due to the sleeve not being seasoned from usage like the rest of the blocks cast iron, or if the removal of the seasoned cast iron to make room for the sleeve now stresses the...
Forum: Pontiac - Race 11-27-2022, 04:38 PM
Replies: 17
Views: 2,032
Posted By 25stevem
Are any of the bores in these motors you have...

Are any of the bores in these motors you have cracked through to the water jacket, or cracks extending down close to the main web area?
Forum: Pontiac - Race 11-27-2022, 11:07 AM
Replies: 17
Views: 2,032
Posted By 25stevem
And the good thing about cast iron heads is that...

And the good thing about cast iron heads is that shallow seats will stay in place, on a aluminum head your sunk, unless you weld up the bowl.

And if some of the chamber also needs welding the...
Forum: Pontiac - Race 11-26-2022, 01:46 PM
Replies: 17
Views: 2,032
Posted By 25stevem
Here is a cut away a member posted of the exh...

Here is a cut away a member posted of the exh side of a 6X head of 98 CCs so it will be real close to the depth of the chamber in a 197 head.

As you can see at least on the right side bottom of...
Forum: Pontiac - Race 11-26-2022, 12:57 PM
Replies: 17
Views: 2,032
Posted By 25stevem
The problem is that most seats that will work for...

The problem is that most seats that will work for a 2.11” valve are .250” tall and the thickness of the chamber floor in a lot of areas is on average .180”.
I would suggest that when using one of...
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