C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

GM Optisparks

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Old Apr 15, 2018 | 12:51 PM
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Default GM Optisparks

Summit appears to still carry some if anyones worried about it. When they are gone they are gone.
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Old Apr 15, 2018 | 08:30 PM
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Originally Posted by cuisinartvette
Summit appears to still carry some if anyones worried about it. When they are gone they are gone.
I looked on the website and saw you could buy some remanufactured Gm acdelco gen 2 optisparks for $477.

The problem with remanufactured is they remanufacture everything except the heart of the unit. The mitsubishi optical sensor.

they just put a coat of black spray paint over the mitsubishi sensor body (in china where they remanufactureit) and call that good enough.

I bought one of these in 2012 using the oem part number from gmprtsdirect. They substituted a remanufactured optispark that turned out to be defective out of the box. They were also absolute cun1s about refunding my money (i certainly didnt want another ‘remanufactured’ one).

But yeah if i didnt look at their catalog right and thats
a NOS ac delco gen 2 opti. Let me know !!

Last edited by dizwiz24; Apr 15, 2018 at 11:26 PM.
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Old Apr 16, 2018 | 07:13 AM
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Originally Posted by dizwiz24


I looked on the website and saw you could buy some remanufactured Gm acdelco gen 2 optisparks for $477.

The problem with remanufactured is they remanufacture everything except the heart of the unit. The mitsubishi optical sensor.

they just put a coat of black spray paint over the mitsubishi sensor body (in china where they remanufactureit) and call that good enough.

I bought one of these in 2012 using the oem part number from gmprtsdirect. They substituted a remanufactured optispark that turned out to be defective out of the box. They were also absolute cun1s about refunding my money (i certainly didnt want another ‘remanufactured’ one).

But yeah if i didnt look at their catalog right and thats
a NOS ac delco gen 2 opti. Let me know !!
I bought one last year. It was not as nice a unit that came out of the car. I ended up with a oil leak after the install. I didn't inspect it close enough and there was a small nick in the shaft where the seal rides. My original was not dead and I rebuilt it.

Gary
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