FAST 90 swap question
FAST 90 swap question I just finished completing the swap on my 1999 LS1. I purchased the rear coolant crossover plugs and the front crossover from Thunder Racing. When I started the car I noticed a water leak underneath at the rear of the engine on the passenger side.
Was there something I was supposed to do besides just bolt the rear plugs down? I didn't use any type of sealant. The leak must be coming from there, right?
Was there something I was supposed to do besides just bolt the rear plugs down? I didn't use any type of sealant. The leak must be coming from there, right?
TECH Fanatic
Joined: Jul 2006
Posts: 1,843
Likes: 0
From: reykjavík, iceland
im not good enough for you 
no siriusly, friend of mine that was installing a oem ls1 intake on his motor forgot to install the oem seals on the oem crossover pipe, and it leaked,
i got crossover kit for my FAST90 install, and it came with seals,
hope it helps,
no siriusly, friend of mine that was installing a oem ls1 intake on his motor forgot to install the oem seals on the oem crossover pipe, and it leaked,
i got crossover kit for my FAST90 install, and it came with seals,
hope it helps,
Yes. You are good enough. I misunderstood your answer the first time.
