Deve's conversion requires a "tall" distributor. I KNOW '52 and earlier distributors were "short". I THINK '54 and later were "tall". I don't know about '53. That said, I am running a Deve's HEI in my '52 GMC with a '54 Chevy tall distributor. I have hidden the HEI module inside the no longer needed (because I have a 10si alternator) stock voltage regulator box. My "How I did it" was posted over here.10 years later and it is still working well.
Last edited by Bill Hanlon; 08/08/2025 3:34 PM.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
| 
