Ok, here's what I get off my sheets that I have available.
ZJ7: special wheel hub cap & trim ring
ZK8: tire pressure sticker
ZP1: COPO Tires
ZQ7: Canadian warranty booklet
Z23: Interior decore package
ZK3: deluxe seat belts & front shoulder harness
ZN1: 4:10 ratio, COPO package (heavy duty guts?)
OK now don't laugh anyone but here is my theory on the nexy four numbers
ZW1: M22 driveshaft
ZV7: M21 driveshaft
ZV9:turbo 400 driveshaft
ZV6: M20 Driveshaft
I have only seen ZV6 once and it was on a M20 COPO Chevelle. It should be the same shaft as the M21 but... Anyone want to tear that theory to shreds?????
Note: most these number came off Camaro sheets but some off Chevelle!
Go easy on me
Peter