mpsoldier

iTrader: (3)

Say for doing a LS6swap or Fast 90. The front coolant pipe number is 12568478. Most people just cap off the rear line outlets, but I don't want to. And on LS1howto he uses another front line for the rear and sticks a bolt in the rubber line to seal it off, but that looks shady to me.

So the 01-02 cars must of come with some sort of a cross over line for the rear, but I can't seem to find the part number. Anybody know it?

BTW, smushing the ls1lines or cutting the bottom of the intake is a NOGO for me.

Sunset01TA

iTrader: (7)

They come with 2 plugs there is no cross over on the rear.

exSSer

He's right. There's no crossover on the rears. I believe there's no need for one. In fact, the only reason there's one on the front is for coolant to pass through the TB.(emissions) The reason there's plugs needed on the back, is because the heads are designed to be interchangable.

mpsoldier

iTrader: (3)

ahhh makes sense now.

So buying the front coolant line would be optional if you already did the throttle body bypass? then just buy a extra set of plugs for the front?

jetblast

i think i saw an article or something on this coolant line, ck with gm they might have added this line in the back for better cooling distribution, which king of makes sense to me since the 7,8 cylinders run the leanest.