tom70

iTrader: (10)

just got two lq4's one has regular looking water pump(curved upper coolant hose) the other one has straight cast tube on end of pump. any one know why?

garys 68

iTrader: (1)

If it looks like this it's an L92 water pump. I think most post 07 trucks use it too.

Prorac1

iTrader: (4)

Does the short block with the "differant" water pump also have a "thick" timing cover? If so, its probably a VVT LY6 6.0 out of a 2007 and up truck. They originally came with rectangular port 823 heads or similar. Hope this helps, Eric L

tom70

iTrader: (10)

was told engine out of an 06. i'm new to identifing ls's. looks exactly like picture. it has 317 heads and cam sensor at rear of engine. any other things to look at to tell what year. any advantages or disadvantages?

thanks tom

garys 68

iTrader: (1)

317 heads were on LQ9s, I didn't think they put them on LQ4s.

tom70

iTrader: (10)

checked pistons with my scope. there're dished. it's a LQ4. thanks for all the help. I've been looking on here for threads on how to identify your engine by casting #'s, but can't find any. are there any?

Albertan

Speaking of water pumps. I want a short water pump for my LS conversion. What is the shortest? I know the water pump on my 2006 CTSV is pretty short. New Camaro is about 1 1/2" longer. Any others shorter?

garys 68

iTrader: (1)

Corvette is the shortest, might be the same as the CTS-V.
New camaro are the same as truck spacing to clear the L99 VVT timing cover.

Albertan

Thanks, that confirms what I thought. The Camaro outlet is on the left which I thought was perfect then I found it was same length as the truck. Looks like I'll have to deal with the right outlet.