TWINTURBOV8
Member
Hey I'm wondering if any body has ran a hei distributor in there truck any help would be nice thanks.
Distributor
- Thread starter TWINTURBOV8
- Start date
Re: Distributor
HEI is stock equipment in these engines. They are a very good unit as is so don't waste you dough on aftermarket ignition systems unless your stock HEI has over 100,000 miles on it.
I replaced my old worn out stock HEI with a new Top Street Performance Pro Billet aluminum HEI distributor and used a stock GM ICM and coil. The TSP distributor is exactly the same as a MSD Pro-Billet distributor except it cost $60 instead of $300 for the MSD. The TSP Pro-Billet HEI has a internal oil channel for additional distributor gear oiling.
HEI is stock equipment in these engines. They are a very good unit as is so don't waste you dough on aftermarket ignition systems unless your stock HEI has over 100,000 miles on it.
I replaced my old worn out stock HEI with a new Top Street Performance Pro Billet aluminum HEI distributor and used a stock GM ICM and coil. The TSP distributor is exactly the same as a MSD Pro-Billet distributor except it cost $60 instead of $300 for the MSD. The TSP Pro-Billet HEI has a internal oil channel for additional distributor gear oiling.
warmpancakes
New member
Re: Distributor
I smell something. Is that sarcasm I smell?
I smell something. Is that sarcasm I smell?
Don W.
Stab it and steer it
Re: Distributor
So the question is did you notice -any-difference? Starting, running, smoothness?
So the question is did you notice -any-difference? Starting, running, smoothness?
sytyguy
Moderated User
Re: Distributor
I've got both in my hands right now. They're not EXACTLY the same, but close enough not to justify the cost of the MSD.
Re: Distributor
I did not notice any difference between the new TSP Pro-Billet distributor and my old stock GM distributor. I have about 8,000 miles on the engine and the TSP distributor and I have no complaints.
The reasons I replaced the distributor is because the engine was out of the vehicle vehicle, I wanted all all new parts on the fresh motor and the TSP Pro-Billet distributor was so inexpensive, at $60. I replaced the ICM that came in the TSP distributor because I did not know what brand it was and I wanted a GM ICM because I know they work correctly with a GM coil. Another reason is because the TSP distributor has a oil channel for additional distributor gear oiling and my stock GM distributor does not have that feature. Extra gear oiling is needed because my engine has a Melling Select high volume oil pump.
IMO...A person would have to out of their mind to pay $300 for a MSD Pro-Billet distributor now that a TSP Pro-Billet distributor is available for $60 or $120 if you replace the ICM. BTW... Top Street Performance products are made in CHINA and it proudly says so on the box.
I admit, I have never visually compared the TSP and the MSD Pro-Billet distributors side by side and I have not compared their performance in back-to-back runs with everything being equal, but I am happy with the TSP distributor and it is at least just as good and probably better than a new stock GM distributor.
What are the differences between a TSP Pro-Billet ready to run distributor and a MSD Pro-Billet ready to run distributor? I am using TSP JM6651-R ready to run Pro billet distributor . Stock replacement for EFI and ESC (non-adjustable). www.topstreetperformance.com
I did not notice any difference between the new TSP Pro-Billet distributor and my old stock GM distributor. I have about 8,000 miles on the engine and the TSP distributor and I have no complaints.
The reasons I replaced the distributor is because the engine was out of the vehicle vehicle, I wanted all all new parts on the fresh motor and the TSP Pro-Billet distributor was so inexpensive, at $60. I replaced the ICM that came in the TSP distributor because I did not know what brand it was and I wanted a GM ICM because I know they work correctly with a GM coil. Another reason is because the TSP distributor has a oil channel for additional distributor gear oiling and my stock GM distributor does not have that feature. Extra gear oiling is needed because my engine has a Melling Select high volume oil pump.
IMO...A person would have to out of their mind to pay $300 for a MSD Pro-Billet distributor now that a TSP Pro-Billet distributor is available for $60 or $120 if you replace the ICM. BTW... Top Street Performance products are made in CHINA and it proudly says so on the box.
I admit, I have never visually compared the TSP and the MSD Pro-Billet distributors side by side and I have not compared their performance in back-to-back runs with everything being equal, but I am happy with the TSP distributor and it is at least just as good and probably better than a new stock GM distributor.
What are the differences between a TSP Pro-Billet ready to run distributor and a MSD Pro-Billet ready to run distributor? I am using TSP JM6651-R ready to run Pro billet distributor . Stock replacement for EFI and ESC (non-adjustable). www.topstreetperformance.com
Last edited:
Couger1968
Dazed and Confused
Re: Distributor
Does it use the stock cap and rotor? What about the ignition module?
Does it use the stock cap and rotor? What about the ignition module?
Re: Distributor
The TSP Pro-Billet Ready-to-Run HEI distributor can use a 1986 - 1995 AC Delco or any aftermarket stock replacement cap, rotor and ICM. The red cap and rotor that comes on the TSP distributor has brass contacts which is a "must have" feature on all ignitions. I replaced the TSP cap and rotor with AC Delco cap and rotor that also has brass contacts because I did not like the funky looking RED cap. I replaced the ICM that came with the TSP distributor with a AC Delco ICM because I did not know what brand came in the TSP distributor. I wanted to make sure the ICM would work properly with my AC Delco coil and ESC module. The TSP JM6651-R distributor is an upgraded stock replacement distributor. I kept the distributor gear that cam on the TSP .500" diameter drive shaft because TSP claims it is a hardened steel gear and is compatible with the gear on a hydraulic roller tappet cam. I will check the distributor gear for wear at 15,000 miles. A MSD hardened steel gear for a .500" shaft costs $30 and that is half as much as the entire TSP distributor.
The TSP Pro-Billet Ready-to-Run HEI distributor can use a 1986 - 1995 AC Delco or any aftermarket stock replacement cap, rotor and ICM. The red cap and rotor that comes on the TSP distributor has brass contacts which is a "must have" feature on all ignitions. I replaced the TSP cap and rotor with AC Delco cap and rotor that also has brass contacts because I did not like the funky looking RED cap. I replaced the ICM that came with the TSP distributor with a AC Delco ICM because I did not know what brand came in the TSP distributor. I wanted to make sure the ICM would work properly with my AC Delco coil and ESC module. The TSP JM6651-R distributor is an upgraded stock replacement distributor. I kept the distributor gear that cam on the TSP .500" diameter drive shaft because TSP claims it is a hardened steel gear and is compatible with the gear on a hydraulic roller tappet cam. I will check the distributor gear for wear at 15,000 miles. A MSD hardened steel gear for a .500" shaft costs $30 and that is half as much as the entire TSP distributor.
Last edited:
Couger1968
Dazed and Confused
Re: Distributor
Thanks,I ordered one. I have a new msd cap on my old one and am going to switch module also.
Thanks,I ordered one. I have a new msd cap on my old one and am going to switch module also.
Re: Distributor
The cap that comes on the TSP 6651-R distributor is the same as the MSD cap. I am reluctant to use an aftermarket ICM .
The only two ICM I have used are AC Delco and ACCEL. I know those two Ignition Control Modules work correctly with a GM coil and GM Electronic Spark Control module.
Other HEI components may work great but it is still a crap shoot if you mix and match HEI ignition products and expect them to work correctly. Take the advice from someone who has used certain electronic parts successfully and it will save you a lot of time and money. That is what I did.
The cap that comes on the TSP 6651-R distributor is the same as the MSD cap. I am reluctant to use an aftermarket ICM .
The only two ICM I have used are AC Delco and ACCEL. I know those two Ignition Control Modules work correctly with a GM coil and GM Electronic Spark Control module.
Other HEI components may work great but it is still a crap shoot if you mix and match HEI ignition products and expect them to work correctly. Take the advice from someone who has used certain electronic parts successfully and it will save you a lot of time and money. That is what I did.
Couger1968
Dazed and Confused
Re: Distributor
Yes I know what you mean, I am going to use the icm out of my factory distributer.
Yes I know what you mean, I am going to use the icm out of my factory distributer.
Re: Distributor
It is always a good idea to replace the AC Delco coil and the AC Delco ICM at the same time. Electronic components slowly degrade over time and it is so slow that you do not notice how bad they were until you replace them with new parts.
I used the following with the TSP 6651-R distributor:
Coil - AC Delco D503A (OEM coil) separate from distributor
ICM - AC Delco D1943A, Police RPO 9C1 V6 / V8 ( 6-degrees more total advance ), I.D. Code 369, Direct replacement for the OEM Code 048 V6 module,
Cap - AC Delco D580A (brass electrodes) black
It is always a good idea to replace the AC Delco coil and the AC Delco ICM at the same time. Electronic components slowly degrade over time and it is so slow that you do not notice how bad they were until you replace them with new parts.
I used the following with the TSP 6651-R distributor:
Coil - AC Delco D503A (OEM coil) separate from distributor
ICM - AC Delco D1943A, Police RPO 9C1 V6 / V8 ( 6-degrees more total advance ), I.D. Code 369, Direct replacement for the OEM Code 048 V6 module,
Cap - AC Delco D580A (brass electrodes) black
Last edited:
Couger1968
Dazed and Confused
Re: Distributor
Is the AC Delco D1943A, our stock replacement? It is confusing Rock auto has a dozen listed.
Is the AC Delco D1943A, our stock replacement? It is confusing Rock auto has a dozen listed.
Re: Distributor
Rock offers several different brands of ICM. I know anything about those. The only other ICM I have used is an Accel #35362 in my OE GM distributor and it worked fine with the OE GM coil ., I suspect the Accel ICM is an aftermarket copy of the AC Delco D1943A "369" (GM-19179578) module.
Rock offers the AC Delco D1943A ICM (Code #369) for a Chevrolet V8 and V6 engines which is the replacement for the original "048" module . The AC Delco D1943A module has 2 degrees advance from 4,000 to 5,000 RPM and 6 degrees advance above 5000 RPM. . It seems like the OE Code 048 Ignition Control Module acted like a rev-limiter and limited the ignition advance above 4,000 RPM.
GM replaced the "048" module with the D1943A "369" ICM. The AC Delco D1943A replacement module may not have "369" printed on it.. The OE "048" (GM part number 10402827) module has been discontinued so GM felt like there was no need to differentiate between the two. If the AC Delco D1943A module does not have "369" printed on it, look for GM part number 19179578 burned on the edge of the module. The 19179578 8-pin ICM was originally for the 9C1 Police Option in a Caprice. In 1989 GM made the AC Delco D1943A ICM (19179578) the service replacement for all V6/V8 models through 1995.. That was because the TBI swirl port (fast burn) cylinder heads needed faster and more total advance.. Engines with aftermarket performance camshafts need faster and more total advance.
Rock offers several different brands of ICM. I know anything about those. The only other ICM I have used is an Accel #35362 in my OE GM distributor and it worked fine with the OE GM coil ., I suspect the Accel ICM is an aftermarket copy of the AC Delco D1943A "369" (GM-19179578) module.
Rock offers the AC Delco D1943A ICM (Code #369) for a Chevrolet V8 and V6 engines which is the replacement for the original "048" module . The AC Delco D1943A module has 2 degrees advance from 4,000 to 5,000 RPM and 6 degrees advance above 5000 RPM. . It seems like the OE Code 048 Ignition Control Module acted like a rev-limiter and limited the ignition advance above 4,000 RPM.
GM replaced the "048" module with the D1943A "369" ICM. The AC Delco D1943A replacement module may not have "369" printed on it.. The OE "048" (GM part number 10402827) module has been discontinued so GM felt like there was no need to differentiate between the two. If the AC Delco D1943A module does not have "369" printed on it, look for GM part number 19179578 burned on the edge of the module. The 19179578 8-pin ICM was originally for the 9C1 Police Option in a Caprice. In 1989 GM made the AC Delco D1943A ICM (19179578) the service replacement for all V6/V8 models through 1995.. That was because the TBI swirl port (fast burn) cylinder heads needed faster and more total advance.. Engines with aftermarket performance camshafts need faster and more total advance.
Last edited:
vinnieTy
TY # 1889
Re: Distributor
I'm came across this old thread after doing a search for information on a replacement distributor. The information sounds awesome and just what i was looking for but due to the thread being a few years old is the products still what is recommended today or is there other products that came out to be better. If not how did the recommended products work out after the install did they work out well. This is what i found on amazon. Amazon.com: Top Street Performance JM6651R Distributor with Red Cap: Automotive
Please let me know.
Thanks
I'm came across this old thread after doing a search for information on a replacement distributor. The information sounds awesome and just what i was looking for but due to the thread being a few years old is the products still what is recommended today or is there other products that came out to be better. If not how did the recommended products work out after the install did they work out well. This is what i found on amazon. Amazon.com: Top Street Performance JM6651R Distributor with Red Cap: Automotive
Please let me know.
Thanks
anryo
Donating Member
Re: Distributor
I have read tons of old posts on all forums and common understanding is, that MSD "desing" type reluctor wheel setup on those billet distributors can cause tach fluttering and false spark.
I have replaced on my truck ALL parts of the ignition system, tested with many modules, using shielded cables and etc. and I have still same issues. And I am dead sure, that it is the reluctor wheel, causing errors.
But as I have aftermarket ECU, then someday I anyway move to coil-over-plug setup with custom timing setup, so I decided not to change the distributor back to stock.
I have read tons of old posts on all forums and common understanding is, that MSD "desing" type reluctor wheel setup on those billet distributors can cause tach fluttering and false spark.
I have replaced on my truck ALL parts of the ignition system, tested with many modules, using shielded cables and etc. and I have still same issues. And I am dead sure, that it is the reluctor wheel, causing errors.
But as I have aftermarket ECU, then someday I anyway move to coil-over-plug setup with custom timing setup, so I decided not to change the distributor back to stock.