SELECTThe radiator in your 1973-1977 Chevy Truck will need to be replaced because the cooling system itself has corrosive properties and will eventually cause the radiator core to fail.
Standard Core: Based on 60's style core with 1/2" tubes on 9/16" centers; the standard automotive core units are drop-in, stock replacements. Made from all new material they offer the highest quality for your stock application.
High Efficiency Core: Copper 80's style core with 1/2" tubes on 3/8" centers. Increased cooling efficiency without modifications to car. 4 row High Efficiency offers more cooling efficiency than aluminum cores due to tubes on 3/8" centers.
Optima Core: Extreme style copper core with 1/2" tubes on 5/16" centers. Offers 40% more heat transfer points. The most efficient core on the market.
| Make | Model | Years |
| Chevrolet | Blazer | 1973 - 1974 |
| Chevrolet | C10 Pickup | 1973 - 1974 |
| Chevrolet | C10 Suburban | 1973 - 1977 |
| Chevrolet | C10 | 1975 - 1977 |
| Chevrolet | C20 Pickup | 1973 - 1974 |
| Chevrolet | C20 Suburban | 1973 - 1977 |
| Chevrolet | C20 | 1975 - 1977 |
| Chevrolet | C30 Pickup | 1973 - 1974 |
| Chevrolet | C30 | 1975 - 1977 |
| Chevrolet | K10 Pickup | 1973 - 1974 |
| Chevrolet | K10 Suburban | 1973 - 1977 |
| Chevrolet | K10 | 1975 - 1977 |
| Chevrolet | K20 Pickup | 1973 - 1974 |
| Chevrolet | K20 Suburban | 1973 - 1977 |
| Chevrolet | K20 | 1975 - 1977 |
| Chevrolet | K30 Pickup | 1973 - 1974 |
| Chevrolet | K30 | 1977 |
| Chevrolet | K5 Blazer | 1975 - 1977 |
| Chevrolet | LUV | 1975 - 1977 |
| Chevrolet | Luv Pickup | 1973 - 1974 |
