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AllZWay
05-09-2011, 02:35 PM
Okay... I got the bad engine pulled and looked over. It spun the two middle cylnder bearings and likely runined the crank and those two rods. Otherwise, there was plenty of wear on the main and rod bearings, but not bad for a stock 160k engine with 4+ years of racing.

It is rebuildable for sure, but time and money are an issue to go that route.

So, I have another junk yard motor to put in and see if it will hold together, but I need to purchase an opti for it. The one I have from another engine is in really bad shape, so I need to purchase a new one.

I called my local Chevy parts friend and get a new one at his cost of roughly $410, but would sure like something cheaper.

Do our rules allow the running of an Accel or MSD opti?

Any suggestions on where to find a cheaper OEM Delco unit?

GlennCMC70
05-09-2011, 02:45 PM
The MSD is not legal. You dont want to run it anyways. I've heard of lots of failures.

Fbody383
05-09-2011, 03:06 PM
http://www.store.procompelectronics.com/index.php?target=products&product_id=37757

Was recommended to a "friend" recently... but it wasn't available in an early model version.

GlennCMC70
05-09-2011, 03:14 PM
Take the old one apart and clean it really really well. Put a new cap and rotor on it and use RTV to seal it. That is what I did to mine back in early 2007.

AllZWay
05-09-2011, 03:16 PM
Does anyone know anything about this Chandler Motorsports? They did have a post on LS1tech.

http://cgi.ebay.com/ebaymotors/new-optispark-distributor-94-95-96-97-camaro-corvette-_W0QQcmdZViewItemQQhashZitem3363a3d6f9QQitemZ22071 5013881QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccesso ries

AllZWay
05-09-2011, 03:17 PM
Take the old one apart and clean it really really well. Put a new cap and rotor on it and use RTV to seal it. That is what I did to mine back in early 2007.

I haven't taken it apart, but it spins terribly and metal shavings were falling out of it. I think it is shot. I also had one cracked spot where the plug wire plugs in.

BryanL
05-09-2011, 03:29 PM
Have you pulled the pan on the replacement motor?

mitchntx
05-09-2011, 03:32 PM
I went with what Alan Blaine suggested ... a MSD cap and rotor on an OEM base.

The MSD rotor uses real screws to attach the bus bar to the rotor. I disassembled it and used loctite on them.
The MSD cap has an O-ring seal, but I also used a small bead of RTV to ensure a solid seal.

The base and optics is where it's a crap shoot. If you want to be sure, then go with your GM parts guy.
I bought mine from a vendor on ebay that is no longer in business.
It was still close to $300 for the Opti and another bone or two for the cap and rotor.

But it's been worry free. I hate doing things over and over ...

AllZWay
05-09-2011, 04:19 PM
Have you pulled the pan on the replacement motor?

Not yet... and may not.

AllZWay
05-09-2011, 04:27 PM
Glenn.... This is the Accel unit. Would it be legal?

http://www.oreillyauto.com/site/c/detail/ACCG/59125.oap?pt=2780P&ppt=C0334

GlennCMC70
05-09-2011, 04:36 PM
Don't see why not.

I thought you had a 93 LT1? The link above (ebay) wasnot a 93 opti.

Casey_SS
05-09-2011, 05:19 PM
I've had great luck with the $249 Summit opti. http://www.summitracing.com/parts/SUM-850060/

y5e06
05-09-2011, 09:30 PM
MSD's are junk. waiting on my 3rd one in one year (street car, warranty)
Accels, they're legal. At least thats what I was told 3 yrds ago when I picked one up for a spare. haven't used it yet
Summit Racing dizzys are identical to the any new GM version, as far as I can tell. They both have aluminum contacts/studs in the cap vs the older GM dizzys with the brass studs. Seems like they changed their vendors to go to cheaper parts. I had a new GM one before the MSDs and it lasted a whole 10 miles.
The older GM distributors seemed to be the best, in my experience. however rebuilding them never turned out well I suppose mostly due to by the time they needed attention it was too late.

AllZWay
05-10-2011, 07:50 AM
Don't see why not.

I thought you had a 93 LT1? The link above (ebay) wasnot a 93 opti.

The old motor is a 93...the newest one is a 95.

Al Fernandez
05-11-2011, 09:21 PM
That accel unit is ok. I would not hesitate to use the summit version either. I would take the time to take the cap off, locktite the rotor screws, and rtv the cap back on.

GlennCMC70
05-11-2011, 09:38 PM
That MSD unit is ok. I would not hesitate to use the summit version either. I would take the time to take the cap off, locktite the rotor screws, and rtv the cap back on.

The MSD Opti is not OK to use. The MSD replacement cap and rotor is OK.
The MSD Opti has a +-5 degree advance/retart screw built onto the front of it. We have been over this in Director emails - it is not legal.

AllZWay
05-12-2011, 08:02 AM
I was able to find a Delphi unit for $256 so I ordered it.

Al Fernandez
05-18-2011, 11:09 AM
D'OH Absolutely right Glenn, my typo. I fixed my post.