93 ragtop

Can someone tell me if the 95 style, vented opti uses a different plug then the 93 unvented version?

cprgmr

I'm getting ready to upgrade to the GenII opti and I can tell you that I had to order a new harness that goes from the opti to the engine harness. If you need part numbers, let me know. :)

93 ragtop

Yes, that would be great!! I have heard that you can switch the pins, that the plug is the same, and I also heard that you need the harness. I called chris at superior and he didnt know. So any help would be appreciated.

cprgmr

Okay, here we go...

Harness : PN 1213-0319
Fitting : PN 1408-2470
Vac Harness : PN 1255-8921

That's what Jeff K & Chris M at Superior Chevy told me I'd need in order to upgrade to the GenII opti. :)

93 ragtop

Hey cprgmr,

Thanks for the list. Now you know you will need the timing cover, a longer pin in the camshaft, and a different chain set as well dont you.

cprgmr

You're welcome! I ended up purchasing a brand new '95 timing cover, anda Cloyes true double roller timing chain. The cam that I got with the Stage III heads is the new longer dowel pin style.
when I first started thinking about this project, I knew I could go in a couple of different directions with the buildup. One would mean keeping the original opti but that would entail grinding down the dowel pin on the cam - something I wasn't too thrilled about doing. In the end, I ended up going to the GenII opti and upgrading the entire front end. I hope it doesn't turn out to be too much of a PITA! :D

93 ragtop

Sounds like you and I are doing the same thing. I have a hotcam to install, the electric water pump and I ordered the cloyes timing set. I have been on the fence with the opti, not knowing if the wiring harness is actually needed . (I had heard that you could use the orig. harness and repin it.) So what I am getting at is this, a little over $300.00 for the 95 opti and harness, or $600.00 for the dynaspark version. This car is only driven about 3000 miles a year, and this project is getting more expensive all the time. I would like the dynaspark but it is $300.00 more then the gen. 2 opti and harness.

cprgmr

I hear ya about the cost - it does get pretty darn expensive! My car is only driven 2-3000 miles per year as well. I too have been wondering if there's going to be any re-pinning (even with the new harness). I'm not sure what the connector from the engine harness is going to look like... Hopefully, everything will just plug right in, but I'm not counting on it. :) We should keep eachother in the loop as our projects progress - it's always easier to have someone to bounce questions and technical tips off of. :cheers:

93 ragtop

I agree, I will keep you posted as I find out more and the progress with the conversion.