Aluminum radiator
Pro
Joined: Mar 2001
Posts: 633
Likes: 1
From: Hamilton, ON, Canada
As far as I can tell, most C3 radiators were copper as was mine in a 1975 L48. I believe only a few high performance early C3's were aluminum.
Burning Brakes
Joined: Dec 2003
Posts: 1,004
Likes: 7
From: Adelaide South Australia
I'm not aware of the standard use of aluminium radiators in C3's from the factory ???
tom
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
This would apply to 68-72 small block, base cars only. If these cars had no air, no auto, and no option engine, then it got the aluminum radiator. If the 68-72 sb had any of these options or any combination of them, then it received the 26" copper radiator. That includes L46 or LT1 cars. All C3 73-82 had copper/brass radiators.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
My 72 Base engine, no ac, auto had a copper/brass radiator. My 63 has an aluminum harrison (stock) go figure!
Last edited by 63mako; Jul 10, 2007 at 09:04 AM.
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
Le Mans Master
Joined: Jun 2007
Posts: 7,801
Likes: 0
From: Crush your enemies, see them driven before you, and hear the lamentations of the women TX
I like this aluminum radiator. Never goes over 185. It's an AC car but naked from the firewall forward. I need to look at filling that space in the engine compartment in. I'm in TX too so it's vaguely possible that I'm a heatsink for the engine. 97 today..... 
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Racer
Joined: Mar 2005
Posts: 343
Likes: 0
From: San Diego CA
St. Jude Donor '05-'07
Same here.... I used to worry about the engine being too cool.