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-   -   Are COPO's, CJ's and Drag Packs good for our sport? (https://classracer.com/classforum/showthread.php?t=49271)

Monte Howard 09-21-2013 01:08 AM
Re: Are COPO's, CJ's and Drag Packs good for our sport?
 
My only question is, doesn't the rule book state no porting or polishing on cylinder heads?
Don't all the new cars, COPO, drag paks, and cobra jets have CNC ported heads from the factory?
Wouldn't this make them superstock motors because of this?
Don't shoot just asking.

GUMP 09-21-2013 10:46 AM
Re: Are COPO's, CJ's and Drag Packs good for our sport?
 
Quote:
Originally Posted by Monte Howard (Post 401044)
My only question is, doesn't the rule book state no porting or polishing on cylinder heads?
Don't all the new cars, COPO, drag paks, and cobra jets have CNC ported heads from the factory?
Wouldn't this make them superstock motors because of this?
Don't shoot just asking.
The production LS7 Corvette head has always been CNC ported. That is the head used on the 427 and 327 COPO engines. The LS3 head used on this years 396 and 350 is run as cast.

201250 09-21-2013 09:08 PM
Re: Are COPO's, CJ's and Drag Packs good for our sport?
 
Yes good for the sport


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