Heater core bypass
Thread Starter
Racer
Joined: Sep 2004
Posts: 348
Likes: 1
From: Southwest Suburbs of Chicago Ill.
St. Jude Donor '14
Heater core bypass
What size fittings do I need to bypass the heater core? Iwant to plug it at the water pump and also at the intake. Do I put anything on the threads? thanx 
Burning Brakes
Joined: Apr 2004
Posts: 847
Likes: 0
From: Des Allemands LA
Either 3/8" or 1/2" npt (national pipe thread) 99% sure it's 3/8". The plugs are less than a buck a piece and are available with an allen head that looks a lot better than a square head sticking out. I use either a little "pipe dope" or teflon tape-either is fine.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by logansrun73
would the one size fit both holes?
Burning Brakes
Joined: Apr 2004
Posts: 847
Likes: 0
From: Des Allemands LA
They may be different sizes like mentioned above just get two of each and you're good one way or the other. It's less then 5 bucks for all of them, that's cheaper than the gas to get them.
