When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
87 Iroc. 5.0 tpi (by vin and RPO) told by seller it's a 5.7
Can't find a front stamp anywhere where it should be and having a time deciphering the one on driver rear. Have a few picts I took with bore scope. Can't see complete number. But part of it looks like 198 ??