how many zl1 motors were made

[GMH454]

On the original question, can't tell but remember a GM executive and former NCRS president gave me an estimate of 300 +. Probably conservative

Have a block, ex Greenwood. Which has GM stamping on the pad of 1-8880-A, Porterfield gave me copies of some GM notes that indicated similar numbers went to McLaren and think Donahue (have not looked at them in 10 yrs.)This was dated in the 70's and may have been Can Am blocks, but the numbers were in the same range.

People talk about these being sold by GM, personally think most were back doored.
Who would pay the price of a new car, to buy an engine that in Drags was no advantage due to the weight cap, and in A-prod they were not referred to as grenades for nothing.

Remember in a early Vette mag a photo of Greenwood clearing out the last 16 around 76 or 77.

Wish GM had kept better paperwork.