LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Anyone Running A ZZ4 or ZZ3 Cam?

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Old Oct 3, 2003 | 10:44 AM
  #16  
rocmemphis's Avatar
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From: Memphis, TN, US
I received the ZZ3 cam in a screwed up LT4 Hotcam purchase and I will tell you that it will not fit a vented opti application unless you do some modifications. You would need a longer dowel pin and you would have to drill out the center to accept the opti. Now it might work fine on a 93-94 LT1 but I am not for sure.
Old Oct 3, 2003 | 10:49 AM
  #17  
95 Z/28 LT1's Avatar
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Originally posted by rocmemphis
I received the ZZ3 cam in a screwed up LT4 Hotcam purchase and I will tell you that it will not fit a vented opti application unless you do some modifications. You would need a longer dowel pin and you would have to drill out the center to accept the opti. Now it might work fine on a 93-94 LT1 but I am not for sure.
Well, looks like I will be getting a custom grind of it then. Now I just need some specs.
Old Oct 3, 2003 | 11:22 AM
  #18  
95 Z/28 LT1's Avatar
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Hmmm, Interesting.

I called Comp cams, Crane cams, and Isky.

Comp offers a 206/230 with .480/.510 lift 112 LSA

Crane Offers a 210/224 with .479/.518 lift 112 LSA

Isky offers a 209/217 with .465/.485 lift 112 LSA


The ZZ4 specs I am trying to match are 208/221 with .474/.510

All the lfts are with a 1.5 rocker BTW.

Any recomendations?
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