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1967-1987 GM Truck Radiator 20.75" Tall (Manual Trans) - HD Cooling


1967-1987 GM Truck Radiator 20.75" Tall (Manual Trans) - HD Cooling
Purchase 1967-1987 GM Truck Radiator 20.75" Tall (Manual Trans) - HD Cooling
  • 1967-1987 GM Truck Radiator 20.75" Tall (Manual Trans) - HD Cooling

  • $844.00

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

Optimized for demanding LS and LT conversions, the 20.75 inch tall HD Cooling radiator maximizes coolant capacity to keep temperatures stable during slow crawls, steep climbs and extreme summer heat. Constructed from lightweight aluminum in the USA, it delivers rapid heat rejection, corrosion resistance and a precise fit for classic C/K Series trucks, ensuring lasting performance and stronger resale appeal.

1967-1987 C/K Series Manual Transmission Radiator for LS and LT Swaps

When fitting an LS or LT mill into your 1967 to 1987 C/K SquareBody, sustaining stable temperatures is crucial. The 1967-1987 GM Truck Radiator 20.75" Tall Manual Transmission HD Cooling unit steps in with its dense core to increase coolant volume and speed heat rejection. It installs directly into manual transmission C10 and K10 pickups, Blazers or Suburbans without cutting or modification. Crafted from premium aluminum, this radiator offers lasting durability and resistance to corrosion under demanding driving conditions.

Enhanced Heat Rejection with 20.75 Inch HD Core

The tall 20.75 inch core dramatically increases coolant volume and surface area, allowing heat to move away from the engine faster than standard radiators. This dense design promotes consistent coolant flow across more tubes and fins, which translates into stable temperatures during steep climbs or crawling through traffic. By optimizing the path for air and liquid to interact, the radiator maintains ideal operating conditions even in severe summer heat. This feature is especially important for LS and LT swaps, where upgraded power output can generate significantly more thermal load.

High Quality Aluminum Structure for Strength and Light Weight

Constructed entirely from premium aluminum, this radiator strikes a balance between rigid strength and minimal mass. Aluminum's natural resistance to corrosion ensures the core and tanks withstand harsh environmental exposure without sacrificing performance. The material also conducts heat efficiently, so less temperature differential is required to move heat from coolant to air. As a result, your truck benefits from reliable cooling and a weight reduction compared to heavier steel designs.

Plug and Play Fitment for LS LT Manual Transmission Swaps

Engineered specifically for 1967-1987 C10, C15, K10, K15, Blazer and Suburban models with manual transmissions, this radiator installs without cutting or modification. Precision formed mounting tabs and inlet outlets match stock frame rails and hose locations to streamline installation. Technicians and DIY enthusiasts alike will appreciate a faster setup, since no custom brackets or adapter fittings are required. This direct fitment approach minimizes errors and keeps swap projects on schedule.

Finish Options that Resist Corrosion and Add Visual Appeal

Choose between a polished bare aluminum finish for a clean mechanical look or a black epoxy coating that offers added protection against rust and road debris. The epoxy layer bonds tightly to the aluminum surface, creating a barrier against moisture and salt spray. Meanwhile, the bare aluminum variant develops a natural patina over time, giving your truck a timeless shine. Both finishes are crafted in the USA to maintain consistent quality and long term durability.

For the same radiator but with fans consider our 1967-1987 GM Truck Radiator 20.75" Tall (Manual Transmission) with Fans - HD Cooling for added airflow assurance.

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: 313-9019-0M
  • Swap Engine: LS, LT
  • Body Type: C/K Series (SquareBody)
  • Brand: Muscle Rods
  • Compatible Transmissions: Manual Transmission
  • Radiator Fan Count: 0
  • Material: High-Quality Aluminum
  • What's Included:
    • 1 x 1967-1987 GM Truck Radiator 20.75" Tall for Manual Transmission (HD Cooling)
  • Finish: Classic Bare Aluminum or Stylish Black Epoxy

Key Features

  • HD Cooling 20.75" Tall Radiator
  • Constructed from High-Quality Aluminum
  • Made in the USA

Benefits

  • Expanded coolant volume keeps temps stable during slow crawls, steep climbs, and extreme summer heat.
  • 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.

This Item Assigned to Category and Also Fits:

Description

1967-1987 C/K Series Manual Transmission Radiator for LS and LT Swaps

When fitting an LS or LT mill into your 1967 to 1987 C/K SquareBody, sustaining stable temperatures is crucial. The 1967-1987 GM Truck Radiator 20.75" Tall Manual Transmission HD Cooling unit steps in with its dense core to increase coolant volume and speed heat rejection. It installs directly into manual transmission C10 and K10 pickups, Blazers or Suburbans without cutting or modification. Crafted from premium aluminum, this radiator offers lasting durability and resistance to corrosion under demanding driving conditions.

Enhanced Heat Rejection with 20.75 Inch HD Core

The tall 20.75 inch core dramatically increases coolant volume and surface area, allowing heat to move away from the engine faster than standard radiators. This dense design promotes consistent coolant flow across more tubes and fins, which translates into stable temperatures during steep climbs or crawling through traffic. By optimizing the path for air and liquid to interact, the radiator maintains ideal operating conditions even in severe summer heat. This feature is especially important for LS and LT swaps, where upgraded power output can generate significantly more thermal load.

High Quality Aluminum Structure for Strength and Light Weight

Constructed entirely from premium aluminum, this radiator strikes a balance between rigid strength and minimal mass. Aluminum's natural resistance to corrosion ensures the core and tanks withstand harsh environmental exposure without sacrificing performance. The material also conducts heat efficiently, so less temperature differential is required to move heat from coolant to air. As a result, your truck benefits from reliable cooling and a weight reduction compared to heavier steel designs.

Plug and Play Fitment for LS LT Manual Transmission Swaps

Engineered specifically for 1967-1987 C10, C15, K10, K15, Blazer and Suburban models with manual transmissions, this radiator installs without cutting or modification. Precision formed mounting tabs and inlet outlets match stock frame rails and hose locations to streamline installation. Technicians and DIY enthusiasts alike will appreciate a faster setup, since no custom brackets or adapter fittings are required. This direct fitment approach minimizes errors and keeps swap projects on schedule.

Finish Options that Resist Corrosion and Add Visual Appeal

Choose between a polished bare aluminum finish for a clean mechanical look or a black epoxy coating that offers added protection against rust and road debris. The epoxy layer bonds tightly to the aluminum surface, creating a barrier against moisture and salt spray. Meanwhile, the bare aluminum variant develops a natural patina over time, giving your truck a timeless shine. Both finishes are crafted in the USA to maintain consistent quality and long term durability.

For the same radiator but with fans consider our 1967-1987 GM Truck Radiator 20.75" Tall (Manual Transmission) with Fans - HD Cooling for added airflow assurance.

Fitment

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
  • Compatible Transmissions: Manual Transmission
Features
  • HD Cooling 20.75" Tall Radiator
  • Constructed from High-Quality Aluminum
  • Made in the USA
Benefits
  • Expanded coolant volume keeps temps stable during slow crawls, steep climbs, and extreme summer heat.
  • 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.
What's Included
  • 1 x 1967-1987 GM Truck Radiator 20.75" Tall for Manual Transmission (HD Cooling)
Specifications
  • SKU: 313-9019-0M
  • Brand: Muscle Rods
  • Swap Engine: LS, LT
  • Body Type: C/K Series (SquareBody)
  • Radiator Fan Count: 0
  • Material: High-Quality Aluminum
  • Finish: Classic Bare Aluminum or Stylish Black Epoxy