Thread: What year is this SB, Code and Casting show different years

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Originally Posted by Itoldyouso

That engine comes up just as you and Gary both found, essentially a truck engine that can either be 2 or 4 bolt mains, and either a roller or flat tappet cam. It is not a Vortec, and there are no factory roller rockers that I have ever seen, even in marine applications. Are you sure they ARE roller rockers? Post up a picture, it will be interesting to see.

It looks like they made bazillions of that same engine over that time span. I think the first center bolt valve covers appeared in about 85, but don't hold me to that.

Don

Ok guys, THIS ENGINE HAS A ROLLER CAM AND ROCKERS! I am offended that you question if I know what they are! An engine this old could have been rebuilt with these parts! GM did put roller cams in some engines from 1986-94.

The question was not if it had roller cam and rockers but why the Code and Casting numbers don't match years.