Are COPO's, CJ's and Drag Packs good for our sport? - Page 10

Monte Howard · 09-21-2013, 01:08 AM

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

Quote:

Originally Posted by Monte Howard

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

Yes good for the sport

09-21-2013, 01:08 AM	#91
Monte Howard Member Join Date: Nov 2002 Location: Potomac,IL Posts: 278 Likes: 1 Liked 66 Times in 22 Posts	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. __________________ Monte Howard 3209 STK, 3208 SS Last edited by Monte Howard; 09-21-2013 at 01:09 AM. Reason: Spelling

09-21-2013, 09:08 PM	#93
201250 Junior Member Join Date: Nov 2010 Location: Florida Posts: 53 Likes: 0 Liked 0 Times in 0 Posts	Re: Are COPO's, CJ's and Drag Packs good for our sport? Yes good for the sport Last edited by 201250; 09-23-2013 at 12:50 PM.