Hello All!

I am back in the TPI realm. Been away for awhile, and happy I'm back.

I have an 87 IROC with the stock 305 TPI (LB9) motor and computer and chip. It is and automatic with 2.73 gears. It needs the head gaskets replaced. So, while I have the motor this far apart, and after reading some information on these boards, I have decided to install a LT1 cam from an 95 Z28. I know other changes will also increase performance, but this one I can address now.

My question is this (and YES, I searched the forums before asking!).

Does this cam work with a stock computer and chip? Or will it cause any problems? Will I have any emissions problems?

From my searches, I believe the answer is yes it will work with the factory compuetr and chip, and no it will not affect emissions.

Thanks.

 

ya it will work fine. Since u have ur heads off might as well get them ported n polished or get soem high performance heads and get some headers to get the most out of ur cam.

 

PHAT:

Thanks for the info. Are you running this combination, or know someone who is?

I may port and polish the heads, but headers will have to wait to be added.

 

no prob

 

Not really a combo is it? All you are doing is swapping up to a slightly more aggressive cam, and cleaning up the stocker LB9 heads. I think it should work well because it is pretty basic and safe. For one, the LT1 cam isn't far off from the Lb9/L98 cam, just a little more aggressive. Secondly, the heads are going to be improved LB9s. Everything still matches, but breathing has been significantly improved - nothing radical but you'll definitely see significant gains.

 

Destroy:

Depends on your definition of "combo". To me, the LT1 cam and LB9 motor is a "combo" because it is not stock, and is a new combination of parts to me.

As to the rest of the post, I thank you for you helpful input on the matter.