LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Opti question

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Old May 25, 2007 | 11:08 AM
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Heys guys i've heard that the stock opti on the lt1's is vented. Im thinkin that my problem of my car sputtering is because of my waterpump leaking on to my opti. Don't they make solid opti's for the lt1's or am i just retarted? Sorry im new to f-bods
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Old May 25, 2007 | 04:02 PM
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you mean a sealed opti? no there is no such thing, but the GM piece is a 3 piece unit which has really crappy seals and they leak alot through the top connector port.

The MSD unit is a two piece unit with a very good o-ring, seals nicely, but it is also vented

MSD for the win
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Old May 25, 2007 | 04:11 PM
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+2 for the MSD
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Old May 25, 2007 | 04:14 PM
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also the DynaSpark Optispark is good too but it is $599.00
http://www.thunderracing.com/catalog...id=158&sid=637
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Old May 25, 2007 | 11:09 PM
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Around how much is a MSD opti? And while im doin that should i get a new water pump like an electric one or just another stock lifetime warranty one from Autozone.
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Old May 25, 2007 | 11:21 PM
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Originally Posted by LT1Drew
Around how much is a MSD opti? And while im doin that should i get a new water pump like an electric one or just another stock lifetime warranty one from Autozone.
Summit has the MSD for $515.00
http://store.summitracing.com/partde...5&autoview=sku
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Old May 25, 2007 | 11:22 PM
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I have a e-water pump but the stock ones work good too
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Old May 26, 2007 | 12:29 AM
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If your looking for a GM ACDelco Optispark I have one for sale in my sig if your interested.
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Old May 26, 2007 | 12:53 AM
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I got my MSD opti off ebay for 400 bucks OH YEA
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