Welcome to the Corvette Forums at the Corvette Action Center!

Heater core again

SR'71

Well-known member
Joined
Apr 17, 2004
Messages
93
Corvette
1971 Vert 454 4 speed sidepipes
Heater leaking again. Changed out the core about 2yrs ago. Now both supply and return lines leak @ the core tank. Took the heater back to radiator shop [actual rad shop]. Tanks not strong enough to support lines. This was a replacement core of unknown manufacture [Mexico/China??]. You don't want to repeat this job but once per lifetime. For '76's and older , here is my [painfully]learned opinion where ever you got your new core from. Remove the heater fan shroud[about 4 more screws]. Take the hearter mounted in the pleneum and the fan shroud to the radiator shop. Have the guys there SILVER SOLDER the supply & return lines to the core using the fan shroud plus a 3/8" shim [firewall thickness] to set the lines depth[all engines] and angle[big blocks& AC].

:eyerole
 

pgtr

Well-known member
Joined
Nov 20, 2002
Messages
324
Location
CST
Corvette
96Cpe
Thanks! I'm in the middle of this very project myself. I never did find a core made in the US. So I finally just closed my eyes and picked one.

thanks again
 
Joined
Jan 1, 2002
Messages
7,246
Location
Washington, Michigan
Corvette
'67 Marina Blue Convertible
Regardless where the core is made or where you buy it, take it to a radiator shop and have it pressure-tested BEFORE you install it; you don't want to do that job twice.

:beer
 

SR'71

Well-known member
Joined
Apr 17, 2004
Messages
93
Corvette
1971 Vert 454 4 speed sidepipes
Regardless where the core is made or where you buy it, take it to a radiator shop and have it pressure-tested BEFORE you install it; you don't want to do that job twice.

:beer
THAT TOO you just don't want to do this job again
 

Corvette Forums

Not a member of the Corvette Action Center?  Join now!  It's free!

Help support the Corvette Action Center!

Supporting Vendors

Dealers:

MacMulkin Chevrolet - The Second Largest Corvette Dealer in the Country!

Parts/Accessories:

Vetteskins

Advertise with the Corvette Action Center!

Double Your Chances!

Partners

Top Bottom