LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

About To Install 95-97 Optispark Anything I Should Know Besides Indexing??

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Old 09-12-2006, 08:52 PM
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About To Install 95-97 Optispark Anything I Should Know Besides Indexing??

i know about the index slot but does it matter if cylinder 1 or 6 is at TDC?? thanks again guys sorry about all the posts just wanna get it right oh yea i have the 95-97 swap thanks
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Old 09-12-2006, 10:08 PM
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Re: About To Install 95-97 Optispark Anything I Should Know Besides Indexing??

It does not matter, but it will have to be at 1 or 6 TDC, so that the opti will clear the crank hub.
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Old 09-13-2006, 12:30 AM
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Re: About To Install 95-97 Optispark Anything I Should Know Besides Indexing??

and make sure all three "ears" of the opti are flat against the timing cover after you slip the opti on. If one ear isn't flat you didn't get the dowel in the correct hole in the opti. Pull out and try again.
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