I just wanted to make sure that the electrical harnesses are the same for all LT1's, is this so? And what about the bolts that hold it to the block/timing cover, are they the same also?

 

2 styles of opti harnesses, the 93 - 94 and the 95 - 97. One is longer than the other (connector length that plugs into the opti).

From Shoebox's site:
1993-1994 optispark (non-vented)
electrical harness 12106559 $55.19

1995-1997 optispark (vented)
electrical harness 12130319 $67.70

If you need a new one, here's a link to a cheaper source: http://www.casperselectronics.com/Me...Category_Code=

 

Thanks, you just saved me some money!

Does anyone have the bolts or know where i can get them?

 

On my 96 all 3 bolts are the same.

 

I meant throughout all the years of lt1's?

 

Yes, they're the same..