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**Captainfab** · 11-28-2011, 02:10 AM

I believe the HEI first was available in the '75 model year. Then somewhere arould the mid to late 80's is when the ESC started. Those can be identified by the second wiring pigtail and plug coming from the distributor body.

BTW I posted a link to a HEI conversion thread in the post you made in the '60-'66 FAQ thread.

11-28-2011, 02:10 AM	#21
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,254	Re: HEI conversion I believe the HEI first was available in the '75 model year. Then somewhere arould the mid to late 80's is when the ESC started. Those can be identified by the second wiring pigtail and plug coming from the distributor body. BTW I posted a link to a HEI conversion thread in the post you made in the '60-'66 FAQ thread. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE