94 Classic LS Distributor Info... - Chevy Impala SS Forum
 
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post #1 of 4 (permalink) Old 01-05-2003, 08:13 PM
joelandsteph
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I have an LS with a 5.7 and need some info about the distributor. What type is it? Average life on one? Most I should pay for a Delco replacement? Steps for installation of new one? Thanks for all your help.
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post #2 of 4 (permalink) Old 01-05-2003, 10:32 PM
alec
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If You are going to replace the distributer,You may want to look in to a higher performance one, and a coil as well.
I'm not sure about the price for the distrubuter, a good higher amp/volt coil $35-$135. or even more if You want to get crazy.
I say that because if Your distributer is wearing out, chances are that the coil isn't far behind.
I've a '94 Classic, a few simple mods. Just checked the ignition system, guess I got lucky. Every thing up to spec.
post #3 of 4 (permalink) Old 01-06-2003, 06:34 PM
SOB 9C1
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a 94 5.7 would be the LT1. that means u have the great opti-crap! they last about 100,000 miles.
 
post #4 of 4 (permalink) Old 01-06-2003, 07:53 PM
'94XTHP
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In order:

It's an optispark. It's under the waterpump, behind the harmonic balancer. It sucks.

Average life is about 100,000 miles, give or take 80,000.

You should get your replacement from GM. As with almost all GM parts, you should get yours from Dal Slabaugh. Email is [email protected] . Cost is around 200 bucks this way, or waaaaaaaay more from your local dealer. Call around if you don't believe me.

Steps to remove and replace, in a nutshell: Buy a new GM Optispark and waterpump. Replace them as a set, because if the waterpump leaks, it will destroy your new distributor. Cost for both for my '96 was about $330 shipped. Drain coolant. Remove waterpump. You will have to remove a couple of bolts near the AIR pump, so remove it, too. Throw AIR pump in the trash, where it belongs. Pull harmonic balancer, leaving the small hub on the crank snout. Remove Opti, noting where the plug wires go. Replace Opti, being sure to line up the correct notch on the back of the Opti with the nub on the cam. The correct notch on the back of the Opti is the squarish looking one that is different than the other two. Use thread sealer on any bolts that go into the water jacket. You can identify those, because coolant will come out when you remove them. Put plug wires back on where they go. Put on harmonic balancer and waterpump. Fill with coolant and distilled water. Start engine, and open bleeder valve on the water neck a bunch of times to remove any air in the system (IMPORTANT). Get your PCM reprogrammed at www.pcmforless.com to remove programming for the AIR pump, and to get your fans to turn on when they should, and make the engine run better and tranny shift better. Enjoy. [img]smile.gif[/img]
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