XtremeDime

iTrader: (16)

I have the Hi-Flo kit that requires me to modify the heater hose inlet/outlet to clear the downpipe. Should I pull out the pressed fittings and tap the holes, and add some 45* or 90* fittings or just have it welded?

slow67

iTrader: (2)

Be careful I've seen the water pump crack pulling out the fittings. Once they are out, I see no problem tapping the hole with NPT threads.

XtremeDime

iTrader: (16)

Look like a huge pain in the *** to tap a hole that big. Maybe Ill stop by a machine shop and talk to them about the costs. **** I might just loop the hose to itself and not worry about the heater til September. lol

67Firebird455

iTrader: (27)

I'm sure people have also overtightened the NPT fittings once tapped too. That area doesn't seem to be a real solid piece when it comes to torquing. See if you can get them out first.

XtremeDime

iTrader: (16)

Got the fittings out just fine. My issue now is that no one in this town has 1/2" or 5/8" NPT taps. I might bring it to a machine shop and have them do it. After buying taps online and shipping em it might be cheaper..

grifter757

iTrader: (11)

I had mine done at a machine shop. Make sure you use some sort of RTV on whatever you put in to replace these. Mine leaked the first time with just pipe tape.

JRENIGAR

iTrader: (37)

Advance and Oriley auto should have those taps in stock for fairly cheap...

XtremeDime

iTrader: (16)

Not here. Also tried Napa. They had NF and NC taps but no NPT.

XtremeDime

iTrader: (16)

Called back one of the industrial tool places I visited yesterday and turns out they had them, just the help was clueless LOL. I have the taps waiting in will call for me now. Ill let you guys know how it turns out, with pictures!

Snyper

iTrader: (27)

I pulled mine out and welded the holes shut. My downpipe almost touches it.

XtremeDime

iTrader: (16)

Got it tapped tonight. Bought some 45* elbows, hopefully that should clear the downpipe just fine. Ill have to wait til the car is running to make sure it holds water....

Slo_240sx

iTrader: (17)

Do you already have the fittings to connect back to your hoses? I pulled mine out, tapped the holes and put SS allen plugs in them. I believe the holes are also 3/8 and 1/2. I'm surprised no one has made a press in bypass block since some people say their engines over heat when blocking them.