FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
Overheating solved 67 Firebird 400
My 67 Firebird 400/TH400 factory 3 core radiator would not cool! It would run 190-220 deg. and sometimes hotter regardless of what I did. I installed a Cold-Case #CHC11A aluminum radiator, and all the problems are now solved. This CHC11A has 42 rows of two 1 inch cores. The stock 3 core had 27 rows with 3 - half inch cores. That's 15 more rows with more cooling capacity. The Firebird now runs 165 on the road, and 170-185 in hot Florida traffic. I run a 160 thermostat and a non thermal, 7-blade, 19" clutch fan. I painted the outside perimeter tanks with Eastwood radiator paint to give it the stock look, and left the center cooling fins unpainted for better heat dissipation.
|
The Following 4 Users Say Thank You to Doug Hopkins For This Useful Post: | ||
#2
|
||||
|
||||
Quote:
Great news! I run a Cold Case in my 1979 400. Your previous rad was the ORIGINAL factory radiator? Odds are good it was clogged up, too. I don't care how well maintained it may have been. A 50+ year old part is a 50+ year old part.
__________________
1979 Trans Am W72 400/4-Speed WS6 - Starlight Black Hardtop
|
#3
|
||||
|
||||
How is the fit compared to the original radiator? Any mods needed?
|
#4
|
||||
|
||||
Quote:
I run a replacement Cold Case in my 72 LeMans GT. Perfect, drop in fit.
__________________
Eric "Todd" Mitten '74 Bonneville 4dr Sedan (455/TH400/2.93 open) '72 LeMans GT (455/M-13/3.23 [8.5"] posi) '71 GTO Hardtop (400/TH400/3.07 12 bolt posi) ‘71 GTO Convertible (455HO/TH400/3.23 posi) '67 GTO Coupe (455/ST-10/2.93 posi) '67 Tempest Wagon (428/TH400/2.56 posi) Deuteronomy 8:3 |
Reply |
|
|