Quote:
Originally Posted by Blacdout96
If your RPO code sheet does not have the designation B4Z, then you do not have an IROC. In case a door was replaced, you could always look at the 8th digit and see if it' the letter. If it does, then there is hope. Almost all IROC's had an 8th digit of G.
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3rd gen RPO sheets are located under the center console lid, not on the door, and the VIN engine code G is for the 305HO (L69). All '85 Camaros that had the L69 should be IROCs (they will also be 5spd manuals and have 3.73 gears. IROCS were also available with the LB9 (305 TPI, vin code F). These would all be automatics with either 3.23 or 3.42 gears. Final IROC engine option was the base LG4 (305 4bbl, vin code H).
- Justin