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

Cam dowel pin length

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Old Jul 25, 2007 | 12:19 AM
  #1  
69gto96z's Avatar
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From: Denton/Rockwall, TX
Cam dowel pin length

I am getting ready to install my CC306 in my 96 vented opti motor. ShoeBoxs website says that it should be between .620" and .685". My dowel on the cam is .400", will I have any problems if i just move it out about .250" to make it around .650 or so, or will the dowel pin need to be further in the cam? It is nearly bottomed out right now.
Old Jul 25, 2007 | 05:44 AM
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From: Jackstandican
If it's the correct pin then yes you can do that. W/ the 95-up pins I've done it and have read where others have on this site.
Old Jul 25, 2007 | 08:04 AM
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What do you mean "if its the correct pin?"
Old Jul 25, 2007 | 03:12 PM
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From: Jackstandican
Originally Posted by 69gto96z
What do you mean "if its the correct pin?"
There are two different length pins. The pre-95 dowel pins did not drive the optispark so they were significantly shorter.
Old Jul 25, 2007 | 03:54 PM
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I've got the same problem on my LPE cam, but I had read it needed to be .570-.650 in length sticking out from the cam nose??
I can't tell how much of the pin in inserted in as there is no access hole behind the dowl pin in this cam like there was on my GTP6.
Old Jul 25, 2007 | 07:12 PM
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From: Jackstandican
Originally Posted by 2QUIK6
I've got the same problem on my LPE cam, but I had read it needed to be .570-.650 in length sticking out from the cam nose??
I can't tell how much of the pin in inserted in as there is no access hole behind the dowl pin in this cam like there was on my GTP6.
More than likely it is the shorter dowel pin. Easiest and most painless way to deal with this is take it to a machine shop and have them take out the old and put in the new. Shouldn't be expensive at all.
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