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-   -   GT Rulebook Amendments (https://classracer.com/classforum/showthread.php?t=83643)

Tom Meyer 12-11-2022 08:07 PM
Re: GT Rulebook Amendments
 
What was broke the way it was? They let Hemis go to comp as well as Factory SS cars trying to get more cars there. The slower cars going from reg super stock to GT can go to 1/2 lb weight breaks. My Chevy II to change classes, you will now have to move 233lb yet you can only have 200 removable weight. The old rules made those cars more attractive to own. With Nhras less tech who is going watch out for this stuff any way. Tom

GTX JOHN 12-11-2022 10:56 PM
Re: GT Rulebook Amendments
 
Quote:
Originally Posted by Paul Precht (Post 672172)
68-71 have the same piston, deck height, valve size and head CCs.
Does the 71 340 not have a thinner head gasket?

Paul Precht 12-12-2022 12:31 AM
Re: GT Rulebook Amendments
 
Quote:
Originally Posted by GTX JOHN (Post 672190)
Does the 71 340 not have a thinner head gasket?
Yes, .002" equaling about .43 of a cc.

GTX JOHN 12-15-2022 12:30 AM
Re: GT Rulebook Amendments
 
I thought it was 71 = .028 and 68 to 70 = .035
Did they change it?

Paul Precht 12-15-2022 02:21 AM
Re: GT Rulebook Amendments
 
Quote:
Originally Posted by GTX JOHN (Post 672332)
I thought it was 71 = .028 and 68 to 70 = .035
Did the change it?
I just checked, 68 .030 69 and 70 .035


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