ls1blazer

iTrader: (6)

which tensioner works with the rest of the c5 accs.? The c5 tensioner sets closer and won't align with the rest of the c5 accs. Its about 1/4 inch off.

Oscar Will

I'm using an LS-2 pump, I had to pull the pump pulley forward on the shaft about 1/4" to make it align with my accessories. I'm running all F-body stuff including the tensioner but the alignment would be the same. I have 6000 miles on it since I installed the LS-2 pump and absolutely no problems with it.

jimmyp

iTrader: (1)

i need to replace my 98 water pump soon, as it leaked a little bit when I fired the engine...probably a bad seal from sitting for so long. But anyways, is there an advantage to the ls2 pump?

Oscar Will

LS-2 Pump.......is supposed to be "low mass" according to the Corvette Engineering blurb I got, I don't know that it flows any different but it has a much lighter rotating assembly weight.

gogogadget

iTrader: (1)

I had to pull my pulley out at least 1/2" (maybe a little more) to get it to line up with f-body accessories.

'JustDreamin'

Biggest advantage I've seen is pulley shape. Its a considerable bit shorter (from block face to tip of pulley) than the LS1 pumps. But that's only an advantage if you're pressed for space.

'JustDreamin'

jimmyp

iTrader: (1)

well i just ordered an ls2 pump up so i hope it works. Some people say the pulley needs to be moved while others dont need to?? What does it take to move it?

Oscar Will

I used my Snap-On three jaw puller, no heat. It moved fairly easy which is why I put a tack weld inside the pulley to the shaft. That's probably a no-no but after 9000 hard miles it's still functioning perfectly.