MSD pro billet distributor gear - Chevelle Tech
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  #1  
Old Aug 25th, 12, 8:38 PM
RATtyCamino RATtyCamino is offline
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Default MSD pro billet distributor gear

TC'rs,

I've got a standard lunati 60103 hydraulic flat tappet and a stock HEI. I was thinking about going to MSD's pro-billet HEI. My question is will the distributor gear that comes on it work ok with my cam? MSD specs say it's a "steel gear". Is it melonized or anything?

Thanks,
Bill
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1978 Malibu
406 w/AFR 195's, 9.9;1, Lunati 60103
TH400, 10" converter, 3.73's.
1.65 60', 7.55 @ 91.37 mph.

http://i1270.photobucket.com/albums/...u/DSCN0151.jpg

http://i1270.photobucket.com/albums/...DSCN0155-1.jpg

http://www.youtube.com/watch?v=RZOxc9ywxbI

Last edited by RATtyCamino; Aug 25th, 12 at 8:58 PM.
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  #2  
Old Aug 25th, 12, 10:36 PM
BillyGman BillyGman is offline
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Default Re: MSD pro billet distributor gear

If your cam was a solid roller, then this might be a tough question to answer. I say that because I had the same question about a solid roller cam that I have from Lunati, and when I called them up on two different days to inquire, I received a different answer from each of the two guys that I spoke with. One told me that my Lunati cam has an "everwear" gear pressed onto it, and that I can use the steel gear that comes installed on the MSD distributor, but the other guy told me that I'll need a bronze gear for the cam I have.

Since your cam isn't a solid roller, I would like to think that you can give Lunati a call and get a straight and definitive answer about your cam, or perhaps even a call to MSD would suffice (or both). For my application, I decided to use a bronze distributor gear, and file an oil groove in my MSD distributor housing just like the one that the Crane cam catalog use to recommend for Chevy V8 engines in order to obtain direct oiling of the distributor gear during operation ( the goove should be approximately .030" wide and .030" deep ). Perhaps even with your combo, filing a groove on the distributor housing wouldn't be a bad idea even though you don't have a solid roller cam.
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Old Aug 25th, 12, 10:52 PM
BillyGman BillyGman is offline
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Default Re: MSD pro billet distributor gear

I know I'm not providing you with a direct answer to your question here, but I hope this will help you out. Here's what I was talking about...

http://www.hotrod.com/techarticles/e...fication_tech/
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  #4  
Old Aug 25th, 12, 11:40 PM
cuisinartvette cuisinartvette is offline
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Default Re: MSD pro billet distributor gear

Id have a hard time believing a flat tappet cam came with a billet cam gearnor sure if they use everwear gears on their cams.

They do sell an everwear gear for the dist which I am using with a billet cam gear and works great. 0 wear so far. Straub sells an AMPCO-45 bronze gear which works well if you want bronze.
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Old Aug 26th, 12, 12:00 AM
BillyGman BillyGman is offline
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Default Re: MSD pro billet distributor gear

Quote:
Originally Posted by cuisinartvette View Post
Id have a hard time believing a flat tappet cam came with a billet cam .
Just for clarity, I didn't mean to imply that this^ was the case. My implication was merely that he might not get a straight answer to his question, and even if he does, the groove filed in rhe distributor seems to be a good idea anyway.
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Old Aug 26th, 12, 1:20 AM
Philip Philip is offline
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Default Re: MSD pro billet distributor gear

I run that same cam and just use a standard GM gear on the distributor.
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  #7  
Old Aug 26th, 12, 2:12 AM
steelcomp steelcomp is online now
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Default Re: MSD pro billet distributor gear

Quote:
Originally Posted by RATtyCamino View Post
TC'rs,

I've got a standard lunati 60103 hydraulic flat tappet and a stock HEI. I was thinking about going to MSD's pro-billet HEI. My question is will the distributor gear that comes on it work ok with my cam? MSD specs say it's a "steel gear". Is it melonized or anything?

Thanks,
Bill
It will work fine on your cam. Put a little assy. lube on it when you install it.
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  #8  
Old Aug 26th, 12, 10:34 AM
RATtyCamino RATtyCamino is offline
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Default Re: MSD pro billet distributor gear

Thanks guys, great info.
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1978 Malibu
406 w/AFR 195's, 9.9;1, Lunati 60103
TH400, 10" converter, 3.73's.
1.65 60', 7.55 @ 91.37 mph.

http://i1270.photobucket.com/albums/...u/DSCN0151.jpg

http://i1270.photobucket.com/albums/...DSCN0155-1.jpg

http://www.youtube.com/watch?v=RZOxc9ywxbI
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Old Aug 26th, 12, 11:09 AM
cuisinartvette cuisinartvette is offline
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Default Re: MSD pro billet distributor gear

Another way to do it almost 0 oil pressure loss

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Old Aug 26th, 12, 11:51 AM
BillyGman BillyGman is offline
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Default Re: MSD pro billet distributor gear

Quote:
Originally Posted by cuisinartvette View Post
Another way to do it almost 0 oil pressure loss

Hmmm..... that looks pretty good. I assume that is done with the dist gear removed, correct?
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  #11  
Old Aug 26th, 12, 12:35 PM
RATtyCamino RATtyCamino is offline
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Default Re: MSD pro billet distributor gear

Guys, just out of curiosity; The stock stuff is iron distributor gear/Iron cam gear. How do the manufacturers make "steel gears" compatible? Heat treating or is the steel distributor gear just not that hard on the iron cam gear?

Thanks,
Bill
__________________
1978 Malibu
406 w/AFR 195's, 9.9;1, Lunati 60103
TH400, 10" converter, 3.73's.
1.65 60', 7.55 @ 91.37 mph.

http://i1270.photobucket.com/albums/...u/DSCN0151.jpg

http://i1270.photobucket.com/albums/...DSCN0155-1.jpg

http://www.youtube.com/watch?v=RZOxc9ywxbI
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  #12  
Old Aug 26th, 12, 2:03 PM
cuisinartvette cuisinartvette is offline
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Default Re: MSD pro billet distributor gear

Yes pull the gear off to drill.
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Old Aug 26th, 12, 9:18 PM
BillyGman BillyGman is offline
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Default Re: MSD pro billet distributor gear

Quote:
Originally Posted by RATtyCamino View Post
Guys, just out of curiosity; The stock stuff is iron distributor gear/Iron cam gear. How do the manufacturers make "steel gears" compatible? Heat treating or is the steel distributor gear just not that hard on the iron cam gear?

Thanks,
Bill
I'm not an expert in metallurgey (I'm lucky if I can even spell it correctly ) but there are numerous grades of steel. All of which have atleast slightly varied characteristics.
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  #14  
Old Aug 26th, 12, 9:35 PM
BillyGman BillyGman is offline
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Default Re: MSD pro billet distributor gear

BTW, here's what I did to mine, and it didn't lower the oil pressure at all, but perhaps that's due to the fact that I have a hi-press/hi-volume oil pump. It still runs at 79 PSI above 2,000 RPM



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  #15  
Old Sep 17th, 12, 2:28 PM
RATtyCamino RATtyCamino is offline
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Default Re: MSD pro billet distributor gear

Quick update guys.

I checked with MSD and the standard gear that comes on the pro-billet HEI is compatible. I bought it and dropped it in this weekend. It replaced a fairly new proform HEI.

I was having an issue with the timing jumping around at idle and the new distributor fixed it. I also took the opportunity to shorten up my mechanical advance curve and limit it with the MSD bushing.

Runs much better at idle, starts better and revs right to 6K. Home run.

thanks,
Bill
__________________
1978 Malibu
406 w/AFR 195's, 9.9;1, Lunati 60103
TH400, 10" converter, 3.73's.
1.65 60', 7.55 @ 91.37 mph.

http://i1270.photobucket.com/albums/...u/DSCN0151.jpg

http://i1270.photobucket.com/albums/...DSCN0155-1.jpg

http://www.youtube.com/watch?v=RZOxc9ywxbI
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