Bronze Or Hardened Distributer Gear ? - Chevelle Tech
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post #1 of 8 (permalink) Old Mar 15th, 20, 5:48 PM Thread Starter
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Bronze Or Hardened Distributer Gear ?

One source says hardened steel is OK w/all cams, another source says billet cams need bronze ?
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post #2 of 8 (permalink) Old Mar 15th, 20, 7:10 PM
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Re: Bronze Or Hardened Distributer Gear ?

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Originally Posted by Reelysalty View Post
One source says hardened steel is OK w/all cams, another source says billet cams need bronze ?
need more info on your application;
what type of cam?
what type of oil pump ?
these impact the gear selection...
is a composite gear an option also??

68-Malibu 427bbc/t4oo/3.73-12bolt/pro charger f1-r
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post #3 of 8 (permalink) Old Mar 15th, 20, 8:25 PM Thread Starter
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Quote:
Originally Posted by Reelysalty View Post
One source says hardened steel is OK w/all cams, another source says billet cams need bronze ?
These are blanket statements made by Summit Racing and Pertronics.
No qualifiers.
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post #4 of 8 (permalink) Old Mar 16th, 20, 6:57 AM
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Re: Bronze Or Hardened Distributer Gear ?

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Originally Posted by Reelysalty View Post
These are blanket statements made by Summit Racing and Pertronics.
No qualifiers.

And you trust them ???? The only one I would trust for the correct answer would be the camshaft manufacturer for the actual camshaft you are using. Period.
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post #5 of 8 (permalink) Old Mar 16th, 20, 4:52 PM
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Re: Bronze Or Hardened Distributer Gear ?

Who's and what cam?

GenVI 454,Autogear M-22W,Moser 12 w/3.42s


'67 Malibu,468 w/TH400


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post #6 of 8 (permalink) Old Mar 16th, 20, 8:03 PM
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Re: Bronze Or Hardened Distributer Gear ?

I'm with BillK, ASK THE CAM MANUFACTURER DUDE.

Only other thing, I have seen more composite gears frag apart than one can imagine, use with a lot of care, make sure it has a warrantee.
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post #7 of 8 (permalink) Old Apr 8th, 20, 8:21 AM
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Re: Bronze Or Hardened Distributer Gear ?

use a lunati everwear gear with a billet cam gear if that helps
those composites do a lot of damage when they let go...tried a bronze
Maybe ok for a track car but on the st fills the crankcase up wiht a lot of dust didnt care for it
Ask your cam grinder to use a different gear other than billet

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post #8 of 8 (permalink) Old Apr 8th, 20, 4:43 PM
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Re: Bronze Or Hardened Distributer Gear ?

Bronze is a sacrificial gear for billet steel cams, the gear may live 5k on the street, and is designed to wear away before doing damage to the billit cam.

Hydraulic roller vcams use a regular type cam gear coted with a "Melonized" coating for break in, and stock GM hyd roller cams are industrial hard chromed from the factory.

The new disaster composite cam gears are supposedly for other than cast cams, to help with increased mileage, before they need replacement. I see a lot of these, absolutely done in in less than 4K miles.

Plastic gears are useless, 10K and they are work heated enough to crack and fail. My Plymouth 225 Slant 6 went through these stock plastic gears right on target, 5K miles, cracked, split, done in.

There are also both hardenable, and hardened cams available, they require different gears as well.

ASK CHRIS STRAUB HERE ON THE BOARDS.
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Last edited by Tom Mobley; Apr 12th, 20 at 4:37 AM.
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