SawMill Otto is right on GM HEI however if you want to look stock just have to spend more. I use early (not computer)big HEI. Can make it fit your block with 4 inch grinder,hack saw,drill, get a bushing at your farm store. wow it's great to get some real ignition,once it's running make a spare keep it under the seat,know how to change it. Make sure your distributor is tall enough to clear the side of the engine,to me the look of it is modern like a mag,real flamethrower !!!

Last edited by fixite7; 10/31/2022 1:02 PM.