1969 428HO 4-spd engine question
I've got a number of 428s that I took apart and stored the pieces and parts in different locations. In the mid-1980s I found a 1969 428HO 4-spd Grand Prix in rough shape. The car was mostly complete, but the tranny was gone, and the motor was still in it. I was able to talk the owner into selling me the engine and some other parts.
The motor consisted of a SR 428 4-bolt block, #48 heads, and the long branch manifolds. The dates don't seem to line up with what I would expect. The exhaust manifolds were dated early April 1969. I still have a 1111952 distributor dated in late March, which I think is the original distributor for that engine. The 428 4-bolt SR block is dated E279.
What is confusing me is how close the SR block date is to the other engine parts that were on the car. I sold the heads long ago, but I think they were dated late March as well. I would expect a SR block to be dated at least six months or more after the surviving components dates.
Any thoughts on this?
Mike
|