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Jun 30, 2008 | 12:03 AM

bad99transam

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Staging Lane

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hot cam question

do you have to up grade to the hevy duty timming set that they recommend, witch would include a different timming cover and opti. i have a 94 and its telling me to upgrade to the 95 comonents.

Jun 30, 2008 | 12:10 AM

porksoda

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From: Clovis, NM

No you do not need it but it is a good idea to replace the timing chain while you are there with a GM replacement. You do not need to convert over to the 95+ stuff. Just make sure the dowel pin on the hotcam is the same size as the dowel pin of the stock cam you pull out.

Jun 30, 2008 | 12:12 AM

bad99transam

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Staging Lane

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ok thanks i am going to replace the timming set i just didnt want to get in to a new cover and then replaceing my msd opti to a 95 version.

Jun 30, 2008 | 12:15 AM

porksoda

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From: Clovis, NM

I feel ya, $515 is not cheap!

Jun 30, 2008 | 12:18 AM

bad99transam

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Staging Lane

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lol not at all i see you did the ls1 drive shaft swap did you have a problums hitting your excaust. when i went to do the swap i had counter waits hitting every ware?

Jun 30, 2008 | 12:27 AM

porksoda

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From: Clovis, NM

No problems here at all, went in like butter.

Jun 30, 2008 | 12:40 AM

bad99transam

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Staging Lane

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how big is your driveshaft mine is out of my 99 trans am m6. its a empire driveshaft i think it is a 3 or 3 and half inch

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Jun 30, 2008 | 12:59 AM

bad99transam

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Staging Lane

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mine is hitting at the back of the drive shaft on the excaust were the pinion meets the driveshaft and another counter wait hafe way up the exaust i tryed to beat the excaust alittle but it realy didnt help.

Jun 30, 2008 | 06:14 AM

#10

SnakeOiler

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From: FXBG, VA

Quote:

Originally Posted by porksoda

I thought the '94s had a spline shaft, not a dowel pin. Am I missing something here?

Jun 30, 2008 | 08:26 AM

#11

bobdec

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You are correct. The LT4 Hot Cam ships with the longer dowel pin used to drive the '96+ (vented) Optis. The pin needs to be ground down (shortened) when installing in '94-95.