Hi, this is my first post on this forum. I am restoring a 69 Camaro. The heads are 3927186 castings witha date code of J 11 8 and J 28 8. They are the big valve 2.02 and 1.6. Untouched and unported.What I want to know is, did the Z28 motors heads come with guideplates or without in stock form ? As these heads have no guideplates and the (I presume) press in studs.
The cylinder block that these heads came of is casting 3932386 4 bolt block date code I 25 8 The build date of the 69 body is 12B.
So is it possible the early 69 camaro Z's came out with the non guideplate heads and the later model 69 Z's as the production progressed come out with the guideplate heads.