Anyone know this engine builder????

[Daves70SS]

I lived in Leyden township from 1982-1992 near grand & wolf road and I don't remember any machine shop on grand west of mannheim at that time.The only automotive machine shops that I remember in the local area at that time were Franklin park auto parts which is at 9514 grand which is just east of mannheim, E M S at 3300 N mannheim a few blocks north of grand and Chicago performance 9316 franklin av.Franklin pk. Which was the place that did all the machine work for the ET shop.