Source for opti spark
Thread Starter
Melting Slicks
Joined: Mar 2005
Posts: 2,352
Likes: 230
From: Northeast FL
Source for opti spark
I'm pretty sure my opti has bit the dust. Where's the best place to buy a high quality replacement? The car is only used on the track, no street time, so I need a good one that I can count on.
Of course I'm going to replace the water pump too while I'm doing it so if anyone knows of a good source for those other than Advance I'd like to know about it.
Thanks in advance.
Of course I'm going to replace the water pump too while I'm doing it so if anyone knows of a good source for those other than Advance I'd like to know about it.
Thanks in advance.
Burning Brakes
Joined: Apr 2006
Posts: 765
Likes: 0
From: Houston Texas
Originally Posted by RacerX70CC
I've got the MSD units in stock (both early and late)... pm for pricing
I bought one and ordered the early since my car was #338 off the line.
Most everyone sells them for $499 except Corvette Central. There's is $519 but will match price. Jeg's was advertised at $452 before they got them in stock and went up to $499 a week later and still not in stock. Nice product.
Last edited by Eddie & the Cruisers; Sep 4, 2006 at 12:08 AM.
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Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Originally Posted by jwt1603
So I can't replace the early non vented with a later vented unit?
Burning Brakes
Joined: Apr 2006
Posts: 765
Likes: 0
From: Houston Texas
Originally Posted by STL94LT1
All 94 optis were the same splined shaft driven units. 95 changed to the vented camshaft driven optis.
The OEM that I replaced had three 1/16" holes on the bottom side (drain holes?) and also a tube about 2" long (vacuum? but nothing was hooked to it) below the #1 plug wire. ACDelco Part # 10457702 does not show the extra tube on the bottom (AC Delco Direct). My car was #338 off the assembly line and has 83,000 miles on the clock.
The new MSD has a clear air tube you hook up to the air intake before the t'body and a vacuum tube that you hook up to the intake manifold.
Last edited by Eddie & the Cruisers; Sep 5, 2006 at 12:04 AM.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Originally Posted by jwt1603
From what I am reading / hearing it was a late 94 mid-production change from unvented to vented and spline drive to pin drive.
Thread Starter
Melting Slicks
Joined: Mar 2005
Posts: 2,352
Likes: 230
From: Northeast FL
Originally Posted by STL94LT1
All 94's have non vented optis, my car is a late model. The advertisers are misleading.
I'll just buy an early one and not worry about it. I don't want to get it torn apart and not have the right parts to put it back together.
