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1967-1987 GM Truck Radiator 18.5" Tall (Auto Trans)


1967-1987 GM Truck Radiator 18.5" Tall (Auto Trans)
Purchase 1967-1987 GM Truck Radiator 18.5" Tall (Auto Trans)
  • 1967-1987 GM Truck Radiator 18.5" Tall (Auto Trans)

  • $944.00

1967-1987 C/K Series SquareBody Radiator for LS LT Conversions

High-quality aluminum construction powers this 18.5-inch tall radiator to deliver OEM height drop in fit and superior thermal efficiency for reliable everyday cooling in your C/K Series SquareBody LS or LT conversion. Designed and built in the USA for 1967 to 1987 C10 and K10/15 trucks as well as Blazer and Suburban models, it features fast heat rejection, corrosion resistant durability, and all necessary fittings for a seamless installation.

LS/LT Swap Radiator for 1967-1987 GM C/K Trucks and Blazer/Suburban

When swapping an LS or LT engine into a classic GM C/K Series truck, maintaining proper cooling is critical and the 1967-1987 GM Truck Radiator 18.5" Tall (Auto Trans) is built to keep temperatures in check. Standing 18.5 inches tall, this aluminum radiator delivers a broad surface area for rapid heat dissipation during highway cruises or off road outings. Engineered for bolt in fitment with automatic transmissions in C10, C15, K10 and K15 trucks, as well as Chevy Blazer and Suburban models, it supports LS and LT compatibility without extensive modifications. Its high quality aluminum construction resists corrosion and ensures reliable performance in daily driving or towing duty.

Precision Cooling Fit for 1967 to 1987 GM C/K Trucks

Standing exactly 18.5 inches tall, this radiator matches the factory mounting points of C10, C15, K10 and K15 models as well as Chevy Blazer and Suburban chassis. Its exact height ensures a seamless installation with automatic transmissions when swapping in LS or LT power units, preserving the original coolant routing without modification. By maintaining the factory inlet and outlet positions, it safeguards against hose tension or misalignment that can compromise coolant flow and lead to overheating.

Advanced Aluminum Core for Efficient Heat Dissipation

Constructed from premium aluminum, the core combines exceptional thermal conductivity with lightweight strength. The expansive surface area of the 18.5-inch core accelerates heat rejection, helping to keep engine temperatures stable during highway runs, towing or spirited driving. Compared to traditional brass and copper designs, aluminum also resists corrosion and reduces overall front-end weight, improving handling and chassis balance.

Finish Choices for Corrosion Protection and Style

Choose a bare aluminum finish to showcase the natural sheen of its machined surfaces or opt for a black epoxy coating for added chemical and abrasion resistance. The epoxy layer forms a barrier against moisture and road contaminants, extending service intervals in harsh environments. Both finishes deliver a clean look that blends seamlessly with restored engine bays or modernized truck interiors.

Engine Swap Ready for LS and LT Conversions

This radiator has been engineered to handle the increased heat load of LS and LT engines without additional cooling modifications. Its robust design supports the higher coolant volumes and pump pressures typical of modern powerplants, preventing heat soak under heavy load or in stop-and-go traffic. By providing reliable temperature control, it lets builders focus on performance tuning rather than custom cooling solutions.

Trust this design for reliable cooling. For the same radiator but with fans see our 1967-1987 GM Truck Radiator 18.5" Tall (Automatic Transmission) with Fans.

Fitment

  • 1967-1987 C10 Chevy Truck
  • 1967-1987 C15 GMC Truck
  • 1967-1987 K10 Chevy Truck
  • 1967-1987 K15 GMC Truck
  • 1967-1987 Chevy Blazer
  • 1967-1987 Chevy Suburban

Specifications

  • SKU: 313-9018-0A
  • Swap Engine: LS, LT
  • Body Type: C/K Series (SquareBody)
  • Brand: Muscle Rods
  • Compatible Transmissions: Automatic Transmission
  • Radiator Fan Count: 0
  • Material: High-Quality Aluminum
  • What's Included:
    • 1 x 1967-1987 GM Truck Radiator 18.5" Tall for Automatic Transmission
  • Finish: Classic Bare Aluminum or Stylish Black Epoxy

Key Features

  • Standard Cooling 18.5" Tall Radiator
  • Constructed from High-Quality Aluminum
  • Made in the USA

Benefits

  • Provides OEM height drop-in fit and dependable everyday cooling for standard-duty trucks.
  • Superior thermal efficiency, durability, light-weight, corrosion-resistant, and fast heat rejection.
  • Built locally for reliable fit, finish, long-term performance, and a better resale value.

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