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ZZ4 Cam swap/ Have Question about Distributor Gear?

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Old 03-01-2007, 07:19 PM
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ZZ4 Cam swap/ Have Question about Distributor Gear?

I put a ZZ4 Roller Cam in my buddys 350 roller block . He will be putting an 86 TPI set-up on it, which is the Hydraulic Flat tappet type HEI distibutor. Before we finish putting it together the question arose about the Factory distributor Gear being compatible with the Roller cam gear? Will this work or is a new Dizzy gear needed? Any help from someone who actually knows for sure how to proceed would be appreciated.
Old 03-02-2007, 07:18 PM
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Anybody ?
Old 03-03-2007, 11:12 AM
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the ZZ4 Cam is a Iron Cam. I believe that when we put it in my motor, we had to make sure it was an Iron gear on the Dist. Not a brass one.

Dont take me to the bank on that, but I believe that was the case.
Old 03-03-2007, 06:46 PM
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So your saying the factory 86 distributor gear is compatible with the ZZ4 cam gear and I can drop it in and go? Anybody else wanting to weigh in on this?
Old 03-03-2007, 08:28 PM
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send five7kid a PM and ask him, but yes, I believe that to be correct.
Old 03-03-2007, 09:50 PM
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Yes, the the flat tappet cam distributor gear is compatible with the Roller cam gear.
Old 03-04-2007, 06:40 PM
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Car: 84 Z28
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So thats 3 votes to the good. Thanks for the responses.
Old 03-06-2007, 11:21 AM
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I think to be on the safe side you should use the melonized gear from GM.
Old 03-07-2007, 03:36 PM
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Originally Posted by Dyno Don
I think to be on the safe side you should use the melonized gear from GM.
Would you happen to know the Part number for that gear?
Old 03-08-2007, 12:18 PM
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Here's the part # 10456413 its the same gear used on the distributor for the zz4 engine.
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