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

How difficult to replace the "Optispark" on a 95?

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Old 01-20-2006, 02:22 PM
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Default How difficult to replace the "Optispark" on a 95?

Please chime in with suggestions and help!!
Old 01-20-2006, 02:32 PM
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The only time I've taken my opti off is when I put my cam in. And it's not exactly easy to get to it. I believe you can go in from the bottom.
Old 01-20-2006, 02:44 PM
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you gotta take off one radiator fan, water pump, belt, crank pulley. Not to bad to do it again but pulling the crank pulley off, and removing the water pump hoses the first time wasn't easy. soak the crank pulley in pbblaster overnight and get a 3 claw puller.
Old 01-20-2006, 02:47 PM
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Thinking of just taking it to a garage and having them do it...
I am a novice mechanic...swapping out the fuel pump is probably the
limit of my abilities...plus I have heard horror stories of how the opti has
to be installed just right, timing whatsover, or the car wont start...
anyone know of someone willing to do this in Columbus, OH? or near?
I have money...
Old 01-20-2006, 02:50 PM
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just line the pin on the cam up to the right slot on the opti. plug and play really.
Old 01-20-2006, 05:23 PM
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It can only go on one way....

We had my friend's replaced in 2-2.5 hours last night.
Old 01-20-2006, 05:35 PM
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Just take your time and do a lot of searching on CamaroZ28.com, believe it or not your not the only LT1 owner who has changed it so theres a ton of info. One thing I would recomend is, this is a really great time to change hoses, and change hose clamps. My Opti died when my hose clamp broke, so if they are off might as get some new ones on there.



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