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post #1 of (permalink) Old 05-25-2002, 05:51 PM
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GM HEI in a \'72 304?

Jumped over from the Jeepster board. Can't get an answer to a question. I don't think anyone will mind. I'm inching my way through a Centech wiring kit. It can be wired for most set-ups. My question is will the GM HEI work on in the '72 304? The motor is original and stock. Thanks for any help, Jim
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post #2 of (permalink) Old 05-25-2002, 08:32 PM
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Re: GM HEI in a \'72 304?

Go <a target="_blank" href=http://www.geocities.com/swbjeep/ignition.html>here</a> at shortwheelbase.com for the TeamRush Duraspark upgrade for the V8. It's better and cheaper than the HEI.
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post #3 of (permalink) Old 05-25-2002, 09:07 PM
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Re: GM HEI in a \'72 304?

Thanks for the info! Jim
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post #4 of (permalink) Old 05-25-2002, 10:58 PM
 
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Re: GM HEI in a \'72 304?

Actually, the TR upgrade won't work on that old of a 304--I checked for my '74. It is for '78 or newer 304s only.
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post #5 of (permalink) Old 05-26-2002, 12:01 AM
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Re: GM HEI in a \'72 304?

Oops, I forgot about that. You'll need to get a 78 or newer AMC V8 distributor (I think they're all the same - 304/360/401) and duraspark ignition module. You could also find the wiring you'll need in most ford products of the late 70's and 80's. It will still be cheaper than the HEI.
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post #6 of (permalink) Old 05-26-2002, 12:45 AM
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Re: GM HEI in a \'72 304?

All AMC V-8's should be the same internally to accept whatever distributor you want to drop in as long as it was for an AMC. Now with this in mind, points distributors are only accurate when first set. They wear and lose efficiency from then on. Then AMC used Prestolite distributors. They were an improvement over points, but not much. I had a Prestolite on my '76 Waggie w/AMC 401. A poor design of a distributor. Then in '78 AMC switched to Motorcraft Duraspark distributors. Big leap in performance. One step further would be the TR upgrade mentioned on this board so much. Yes you could get a HEI clone for your 304 from Performance Distributors, (DUI), but it's really not as reliable as a true GM HEI. Get the Ford Durospark distributor from a '78 or newer AMC V-8 and do the TR upgrade. There are a few that have done this to their AMC V-8 powered Commandos with good success.
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