MSD Billet Distributor????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mark25 · 04-07-2002, 10:11 PM

been looking and reading about the MSD Billet distributors. i am just wondering if i will get any better spark (longer & hotter, or??) than i have now with a GM HEI with MSD 42,000 volt coil and MSD module (good solid spark to 9,000 RPM). this would the #85551 distributor with a blaster 45,000 volt coil and a 6AL (includes rev. limiter) ignition box. what ya all think????

70shortnphat · 04-07-2002, 10:48 PM

does your engine ever see 9Grand?

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1970 short bed fleetside

69 longhorn · 04-07-2002, 11:26 PM

As long as your setup keeps the plugs burning clean,I wouldnt change it. MSD is nice stuff,but with the HEI,you can get parts anywhere. I have upgraded to a hot coil & module,& it made a diff over the stock pcs. If you need to, you can add the 6A box to your HEI........69 longhorn.

slam33 · 04-08-2002, 02:15 AM

your not going to notice any increase in performance since it's a street truck. What you will get is a better built distributor that should last longer due to the bearings and billit housing

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71 basic C-10 350. The only option is the rust.No nothing on it, but thats all about to change. <A HREF="http://www.geocities.com/stevemau/slam33page.html?1004806705410

" TARGET=_blank>http://www.geocities.com/stevemau/slam33page.html?1004806705410

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Mike C · 04-08-2002, 08:19 PM

The biggest advantage to the MSD distributor is the ability to PRECISELY control the total mechanical advance and even adjust it to match the initial timing that matches your motor. HEI is notorious for not having enought total advance and requires using the vacuum on a ported source to increase advance. This is not as accurate as using mechanical. It is possible to make a big cam idle and run good at part throttle by tailoring the initial and mechanical advance for WOT and using the vacuum at idle/part throttle to increase advance and smooth the power delivery.

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70 GMC 3/4 ton Sierra Grande 402/TH400
72 Jimmy 4WD 4spd 4" & 35's
64 Corvette Coupe
68 Camaro 'vert TPI & TH700
69 Z/28 355 12.6's @110
72 Datsun 240Z-ol' reliable

04-07-2002, 10:11 PM	#1
mark25 Registered User Join Date: Feb 2000 Location: Vassar,Ks 66543 Posts: 375	MSD Billet Distributor????? been looking and reading about the MSD Billet distributors. i am just wondering if i will get any better spark (longer & hotter, or??) than i have now with a GM HEI with MSD 42,000 volt coil and MSD module (good solid spark to 9,000 RPM). this would the #85551 distributor with a blaster 45,000 volt coil and a 6AL (includes rev. limiter) ignition box. what ya all think???? __________________ '72 C-10 Cheyenne Super, 402/TH400, Bucket Seats, tilt, tach, AM/FM & shoulder harnesses and a ground up restoration

04-07-2002, 10:48 PM	#2
70shortnphat "See the U.S.A....." Join Date: Apr 2002 Location: Richmond TX. Posts: 269	does your engine ever see 9Grand? ------------------ 1970 short bed fleetside __________________ 1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston)

04-07-2002, 11:26 PM	#3
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	As long as your setup keeps the plugs burning clean,I wouldnt change it. MSD is nice stuff,but with the HEI,you can get parts anywhere. I have upgraded to a hot coil & module,& it made a diff over the stock pcs. If you need to, you can add the 6A box to your HEI........69 longhorn. __________________ http://community.webshots.com/user/hotrodhorn

04-08-2002, 02:15 AM	#4
slam33 Registered User Join Date: Aug 2001 Location: Long Beach, Ca Posts: 1,432	your not going to notice any increase in performance since it's a street truck. What you will get is a better built distributor that should last longer due to the bearings and billit housing ------------------ 71 basic C-10 350. The only option is the rust.No nothing on it, but thats all about to change. <A HREF="http://www.geocities.com/stevemau/slam33page.html?1004806705410 " TARGET=_blank>http://www.geocities.com/stevemau/slam33page.html?1004806705410 </A> __________________ 71 LWB 350/350still working on it but it's going tp be sweet. www.geocities.com/stevemau/slam33page.html " TARGET=_blank>http://www.geocities.com/stevemau/slam33page.html?1004806705410 </A>

04-08-2002, 08:19 PM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,731	The biggest advantage to the MSD distributor is the ability to PRECISELY control the total mechanical advance and even adjust it to match the initial timing that matches your motor. HEI is notorious for not having enought total advance and requires using the vacuum on a ported source to increase advance. This is not as accurate as using mechanical. It is possible to make a big cam idle and run good at part throttle by tailoring the initial and mechanical advance for WOT and using the vacuum at idle/part throttle to increase advance and smooth the power delivery. ------------------ 70 GMC 3/4 ton Sierra Grande 402/TH400 72 Jimmy 4WD 4spd 4" & 35's 64 Corvette Coupe 68 Camaro 'vert TPI & TH700 69 Z/28 355 12.6's @110 72 Datsun 240Z-ol' reliable __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax



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