Newbie wants to race... But what class??

Mike Carr · 03-22-2010, 11:28 PM

Are you thinking of running it in Stock or Super Stock?I don't see the '04 Silverado in the NHRA Classification Guide, so it would not be eligible for NHRA. IHRA (to my knowledge) doesn't have an online version of the Guide. They may accept some combinations as legal.

Was the 6.0 engine you installed available from the factory in the '04 Silverado? If not, the truck will not be eligible for Stock. Not sure what all replacement parts are allowed (LS-2 pistons, etc don't sound legal). The camshaft would have to meet factory lift specs (or .430 lift, whichever is bigger). 4 links are not allowed in Stock It doesn't sound like your truck would be eligible for any Stock or Super Stock classes. Probably would have to run in Pro in brackets, or maybe Hot Rod if it can run 10.90 1/4 mile (7.00 1/8 mile) and has all the safety requirements. Your best bet at an IHRA Divisional race right now would be to run No Box or Street ET.

03-22-2010, 11:28 PM	#2
Mike Carr VIP Member Join Date: Nov 2001 Location: Enon Valley PA Posts: 1,650 Likes: 234 Liked 83 Times in 37 Posts	Re: Newbie wants to race... But what class?? Are you thinking of running it in Stock or Super Stock?I don't see the '04 Silverado in the NHRA Classification Guide, so it would not be eligible for NHRA. IHRA (to my knowledge) doesn't have an online version of the Guide. They may accept some combinations as legal. Was the 6.0 engine you installed available from the factory in the '04 Silverado? If not, the truck will not be eligible for Stock. Not sure what all replacement parts are allowed (LS-2 pistons, etc don't sound legal). The camshaft would have to meet factory lift specs (or .430 lift, whichever is bigger). 4 links are not allowed in Stock It doesn't sound like your truck would be eligible for any Stock or Super Stock classes. Probably would have to run in Pro in brackets, or maybe Hot Rod if it can run 10.90 1/4 mile (7.00 1/8 mile) and has all the safety requirements. Your best bet at an IHRA Divisional race right now would be to run No Box or Street ET. __________________ 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