The Dreaded LT1 Optispark

[eric_cspan]

That's what I keep saying. Some people may think the $400 savings is worth the risk.

[JD311]

I initially thought mine was bad, bought a reman from napa. That thing was a pos, sounded like someone shooting ducks! Glad I didnt put the waterpump on yet before test firing! Ended up putting the old one on with the new bearing from the napa one, only thing really wrong with mine.