GT clarification - Page 2

Mike Carr · 09-10-2012, 11:34 PM

I believe, for GT classes, you take "the shipping weight of the car with the heaviest gasoline V-8 engine available".

As for hoods, if the engine used came available with ram-air, the car can use it in GT. Otherwise, no, or hood must be blocked off.

Example A: 1995 Firebird with 2000 LS-1 engine for, say, GT/BA. Ram-air is OK.
Example B: '95 Firebird with '76 Corvette 350. Flat hood, or scoops must be blocked.

So, a '68 Firebird could use dual '68 ram air hood in Example A, but not Example B (or blocked off).

Not sure about same year car/engine. I've seen racers claim a '95 Camaro/'95 LT-1 in SS/IA as a '96 Camaro/'95 LT-1 and run GT/FA.

Kegracing · 09-11-2012, 12:15 PM

thanks Mike!

jaf2021 · 09-11-2012, 06:16 PM

In regular SS such as a ss/ia 66 chevy II 327/275 combo the hp rating for oem heads is 307 and replacement heads is 304. Does this make sense? jason

Mike Carr · 09-11-2012, 10:29 PM

Quote:

Originally Posted by jaf2021

In regular SS such as a ss/ia 66 chevy II 327/275 combo the hp rating for oem heads is 307 and replacement heads is 304. Does this make sense? jason

I would imagine the OEM head got hit via the AHFS, whereas the replacement head did not. Just a guess.

Ed Carpenter · 09-11-2012, 11:02 PM

Quote:

Originally Posted by jaf2021

In regular SS such as a ss/ia 66 chevy II 327/275 combo the hp rating for oem heads is 307 and replacement heads is 304. Does this make sense? jason

Auto 307
Stick 299

As stated before aftermarket head hasn't been hit yet.

jaf2021 · 09-12-2012, 08:32 AM

thanks that makes sense. thanks jason

09-10-2012, 11:34 PM	#11
Mike Carr VIP Member Join Date: Nov 2001 Location: Enon Valley PA Posts: 1,650 Likes: 234 Liked 83 Times in 37 Posts	Re: GT clarification I believe, for GT classes, you take "the shipping weight of the car with the heaviest gasoline V-8 engine available". As for hoods, if the engine used came available with ram-air, the car can use it in GT. Otherwise, no, or hood must be blocked off. Example A: 1995 Firebird with 2000 LS-1 engine for, say, GT/BA. Ram-air is OK. Example B: '95 Firebird with '76 Corvette 350. Flat hood, or scoops must be blocked. So, a '68 Firebird could use dual '68 ram air hood in Example A, but not Example B (or blocked off). Not sure about same year car/engine. I've seen racers claim a '95 Camaro/'95 LT-1 in SS/IA as a '96 Camaro/'95 LT-1 and run GT/FA. __________________ Mike Carr, Tri-State S/SS Association President Looking for 2015 S/SS Race Sponsors Contact me if interested buffdaddy_1302@hotmail.com (724) 510-5912

09-11-2012, 12:15 PM	#12
Kegracing Member Join Date: Jun 2002 Location: Red Oak, TX Posts: 441 Likes: 0 Liked 0 Times in 0 Posts	Re: GT clarification thanks Mike!

09-11-2012, 06:16 PM	#13
jaf2021 Member Join Date: Oct 2004 Location: selmer,tn Posts: 111 Likes: 13 Liked 5 Times in 5 Posts	Re: GT clarification In regular SS such as a ss/ia 66 chevy II 327/275 combo the hp rating for oem heads is 307 and replacement heads is 304. Does this make sense? jason

09-12-2012, 08:32 AM	#16
jaf2021 Member Join Date: Oct 2004 Location: selmer,tn Posts: 111 Likes: 13 Liked 5 Times in 5 Posts	Re: GT clarification thanks that makes sense. thanks jason