Alright guys i bought a 1988 Camaro V6 with 5 speed here in Cali about a week ago just got around to looking up the RPO codes. I found most of them but couldnt locate the 1SC for 1988. I know in 1987 it was the IROC code. ANy light you guys could shed would be of great help thanks guys/gals.

It wasn't an IROC-only RPO in '87. My '87 Sport Coupe had that RPO.

I did a and found this thread:
https://www.thirdgen.org/forums/hist...-info-rpo.html

I can say that my '87 SC was far from loaded with options. It had V8, t-tops, and nothing else. No power anything.

First off, you don't need to post your question in multiple locations. It'll get answered.

1SC was not an IROC package. 1SC is the top tier option package for the IROC-Z in 1988 and was the second to the top tier for the Coupe. For the IROC-Z, it was basically a fully optioned car as far as option packages. It was a $1555 option package for the Sport Coupe and included carpeted floor mats, power hatch release, cruise control, tilt wheel, power windows and intermittent wipers, AC, all windows tinted and body side moldings. The last options are 1SB, but are included with 1SC.

For the SC, the top tier option package, 1SD, included 1SB, 1SC and rear cargo cover, dome and reading lamps, power door locks, halogen headlamps, auxiliary lighting and an upgraded stereo.

Unless the Camaro White Book is wrong the 1SA, 1SB, 1SC, 1SD codes for options were only used on 1987 model Camaros.

Where have you found this used in 1988 model Camaros?

The dealer order guide!!!

It's probably wrong. In the Corvette Black Book (same publisher/format), they don't list any preferred equipment group (1SA, 1SB, 1SC) codes before the 2001 model year, yet I've seen these option codes on plenty of pre-01 Corvette RPO stickers.

Old thread I know, but mine has 1SB, yet has most of the 1SD options minus the cargo cover. I'm currently working on getting a repro window sticker.