Is it possible to......... HEI question. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*racedvl* · 08-09-2002, 10:48 PM

I have 2 computer controlled advance HEI's in my garage. Can I convert them to a conventional HEI? Thanks.

brad69C-10 · 08-09-2002, 10:49 PM

I used to do these, by changing the module over to the old style......works the best.

frost89434 · 08-09-2002, 10:50 PM

I may be wrong but I don't think you can.

brad69C-10 · 08-09-2002, 10:52 PM

well, maybe I didn't then..............I was taking the ones from my 87 trucks, with the 2 seperate plugs on them and converting them to the older style with the one plug to the cap......

Longhorn Man · 08-09-2002, 10:52 PM

I think the only thing they can bu used for it to make a primer tool out of them.

Beast388 · 08-09-2002, 11:23 PM

Depending on what year and model HEI you have, some don't even have mechanical or vacuum advance.....that was all controlled by the computer.

*racedvl* · 08-10-2002, 08:07 AM

Beast388, that's what they are. There is no vacuum advance.

Beast388 · 08-10-2002, 10:25 AM

I would bet that they cannot be converted then. Older HEI's are easy to come by....so I would go that route.

08-09-2002, 10:48 PM	#1
racedvl Account Suspended Join Date: Jan 2000 Location: Woodstock, IL Posts: 7,020	Is it possible to......... HEI question. I have 2 computer controlled advance HEI's in my garage. Can I convert them to a conventional HEI? Thanks.

08-09-2002, 10:49 PM	#2
brad69C-10 Registered User Join Date: Jul 2002 Location: Ky. Posts: 35	I used to do these, by changing the module over to the old style......works the best. __________________ 69 C-10 Pro Street...........red on black...........big block and a lot of go fast stuff under the hood Still in progress ...........

08-09-2002, 10:50 PM	#3
frost89434 Registered User Join Date: Nov 2001 Location: sparks, NV Posts: 1,141	I may be wrong but I don't think you can. __________________ 68 short fleet with 71 front clip 2wd jaguar blue 99 chevy ext cab shrtbed z71 loaded 99 chevy swb fleetside(daily driver) Sparks, Nevada

08-09-2002, 10:52 PM	#4
brad69C-10 Registered User Join Date: Jul 2002 Location: Ky. Posts: 35	well, maybe I didn't then..............I was taking the ones from my 87 trucks, with the 2 seperate plugs on them and converting them to the older style with the one plug to the cap...... __________________ 69 C-10 Pro Street...........red on black...........big block and a lot of go fast stuff under the hood Still in progress ...........

08-09-2002, 11:23 PM	#6
Beast388 Suburbans RULE! Join Date: Jan 2000 Location: Clinton, IA 52732 Posts: 689	Depending on what year and model HEI you have, some don't even have mechanical or vacuum advance.....that was all controlled by the computer. __________________ --Ben 71 GMC Suburban 4X4 The "Beast" 388 CID Stroker, TH350, NP205, 8-lug D44, 14BFF w/ Detroit, 4.10:1 gears, 4-Wheel Disks 4" Lift, 35" MT/R's.

08-09-2002, 10:52 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	I think the only thing they can bu used for it to make a primer tool out of them.

08-10-2002, 08:07 AM	#7
racedvl Account Suspended Join Date: Jan 2000 Location: Woodstock, IL Posts: 7,020	Beast388, that's what they are. There is no vacuum advance.

08-10-2002, 10:25 AM	#8
Beast388 Suburbans RULE! Join Date: Jan 2000 Location: Clinton, IA 52732 Posts: 689	I would bet that they cannot be converted then. Older HEI's are easy to come by....so I would go that route. __________________ --Ben 71 GMC Suburban 4X4 The "Beast" 388 CID Stroker, TH350, NP205, 8-lug D44, 14BFF w/ Detroit, 4.10:1 gears, 4-Wheel Disks 4" Lift, 35" MT/R's.



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