He may have it confused. He may have purchased it from Tom Langdon who is the owner of “Stovebolt Engine Company.” Tom also sold at one time a cam he referred to as an RV cam. There were two versions of his HEI, early and late. Early units had a modified shaft, later units had a custom shaft. Tom sold a couple of thousand of his 235/261 HEI. They were all based on the 2.8 v6 motor which did not sell well when the vehicle it came in was new so there was a limited supply of cores and when Tom could not get sufficient number of cores, that was the end of the run. Tom is a really good resource, former GM engineer, record holding NHRA racer and all around good guy, but he is now 82.

Last edited by Dragsix; 07/28/2024 3:54 PM.

Mike