changing non vented opti to vented

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Sep 25, 2007 | 07:50 AM

cruzin94

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changing non vented opti to vented

what all needs to be done when chaning non vented optis to a vented one i heard there are a couple changes but i just dont no what they are

Sep 25, 2007 | 08:53 AM

Fastbird93

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From: Fort Wayne, IN

You'll need the following:

Vented Opti
95 Timing Cover (96-97 can be used, but you need to plug the CPS hole)
Vented Opti Wiring Harness (this has a plug about 2x as long as the non-vented) -- Available from Caspers Electronics for about $30 as opposed to GM's $60+ charge
Opti Vacuum harness
95+ Cam w/longer dowel pin (GOOD opportunity for a cam swap)
95+ timing chain, or a LT4 HD or Cloyes (Cloyes set is only like $70 for the doube roller from Summit)

Sep 25, 2007 | 09:43 AM

AR15 guy

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You sure that 80$ cloyes will work? I just looked it up on summit and its not a roller. I thought it had to be? Here is a link.

http://store.summitracing.com/partde...w=32&N=700+115

Sep 25, 2007 | 09:54 AM

dhdenney

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Just buy a stock 95+ timing chain. Check with your dealer. Stock chain isn't roller.

Sep 25, 2007 | 10:20 AM

Fastbird93

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From: Fort Wayne, IN

Quote:

Originally Posted by AR15 guy

You sure that 80$ cloyes will work? I just looked it up on summit and its not a roller. I thought it had to be? Here is a link.

http://store.summitracing.com/partde...w=32&N=700+115

I'll see if I can't find the part number for the one I've used.

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