Was doing some research and not sure about this..........Just had my baby scanned and it came back it needed a distributor..... At a local part store there over 200 for oem, and on Craigslist theres a Aftermarket MSD brand new in plastic for 50bucks.....its for a 95 LT1 and I have a 94 LT1...is it the same???? when I look them up they come up 93-94 are same and 95-97 are are same...PlzzZzZZz let me know because I'm gonna guy one tomarrow.... Thanks!!!!

 

I believe that the 95 uses a different camshaft connection for the opti, but am not certain. I know that the early '94s are non-vented and from '95 on they are vented. But from what I have read, you can convert a non-vented to a vented version which should allow it to last longer.

For 200 bones, are you sure that you are getting an AC Delco unit? Or is it a cheap knock-off or reman unit? I just ordered a genuine AC Delco unit (P/N ACDelco 10457702) and it cost me nearly $400 with shipping. But it is a new unit and hopefully will last another 83K miles like the original one did.

 

I would check to make sure you do have the vented style opti. In the F-Body cars, the change went to the vented style in 95, but in 94 on other models such as the Impala. Since 94-95 was a transition period, it would be best to make sure, just in case Chevy started putting vented optis in the late 94 F-Body cars. You never know, GM has done stranger things than that in the past.

 

ac delco(oem)pn for 93-94 non vented is pn-10457702..95-97 vented pn is 1104032.cant tell ya about a msd unit.

 

No, a 95 F-Body Opti will not fit in a 94 F-Body car without front cover and camshaft modifications. Only the B-Bodies (and the D-Body???) got the vented Opti in 1994. The Optis differ in drive method, ventilation system, and electrical connection. The 94 uses a splined system that mates to the camshaft timing gear and the 95 uses a pin drive system.

http://store.nookandtranny.com/Info_LT1.html
http://en.wikipedia.org/wiki/GM_LT_engine
http://www.ls1tech.com/forums/lt1-lt...do-i-need.html
http://en.wikipedia.org/wiki/Chevrol...rth_generation)

 

Ok well with that info im going out right now to pull it off there and check to see if its vented or not before I go buy one.....and grandpawswagon its not ac delco is Duralast from autozone and the exact price is 239.99.....but on ebay I just found item number 270542677084 which has part number 10457702 which is the same as stock but is only 73 buck shiped to my house!!

 

I wouldn't put a Duralast ignition anything on my car. There's a reason why some ebay opti's are $70 and others are $300, you get what you pay for. I understand being on a budget, but your time and aggravation is worth something too. It's up to you if you want to take a chance on a cheap China made opti crapping out on you and having to take everything apart again. This: Delphi unit on ebay is $295. It's your money and time, and in the end it's your call.

 

I ended up winning a MSD complete opti cap and rotor and it also comes with 10.2mm wires and iridium NGK plugs....picked up all of it for 377 shiped to my door =).....hopfully I get it tomarow and i'll let you guys know how she's doin!!
P.S. It had a Non-Vented on it!!

 

That's about as good of a deal as I got last year. On ebay I snagged a brand new MSD opti for my Vette for $285 delivered. So far...so good.