3-Row Aluminum Radiator for 1972–1986 Jeep CJ5, CJ6 & CJ7 – Chevy V8 Engine Swap Conversion

Designed for Chevrolet V8 Engine Conversions

The most important feature of this radiator is its intended application.

This is not a standard replacement radiator for an original Jeep CJ engine.

It is advertised specifically for Jeep CJ vehicles converted to a GM/Chevrolet V8 powertrain.

Why Hose Locations Matter

The radiator hose connections on a factory Jeep engine may be positioned differently from those required by a Chevrolet V8.

Installing a radiator with incorrect hose locations can create routing problems, interference, or the need for custom plumbing.

The manufacturer specifically warns that the inlet and outlet positions for the original Jeep engine and the Chevrolet conversion engine are not the same.

Before purchasing, confirm the radiator hose orientation on your actual engine swap.

Chevy V8 Swap Applications

This radiator may be suitable for compatible builds using Chevrolet small-block V8 engines, provided the hose routing, mounting dimensions, and cooling requirements match.

Common classic GM V8 swap projects include:

• Chevrolet 305 small-block conversions.
• Chevrolet 327 small-block conversions.
• Chevrolet 350 small-block conversions.
• Other compatible GM V8 conversion projects.

These are examples of engine swap configurations, not independently verified engine-specific fitment claims.

LS-series engines and other modern GM V8s may use different hose routing, steam vent plumbing, and cooling system arrangements. Their compatibility must be evaluated separately.

Integrated Automatic Transmission Oil Cooler

The radiator includes an integrated transmission oil cooler for compatible automatic transmission applications.

Automatic transmissions generate heat during normal operation.

That heat can increase during slow-speed off-road driving, towing, and sustained operation under load.

The integrated cooler helps transfer heat between transmission fluid and the engine cooling system.

Transmission Cooler Specifications

The manufacturer lists the cooler as:

Cooler Dimensions: Approximately 38 × 215 mm

Connection Specification: G1/4 (Z), as advertised

Why Transmission Cooling Matters

• Helps manage automatic transmission fluid temperatures.
• Supports compatible transmission cooling arrangements.
• Provides integrated cooler connections within the radiator.
• Can simplify certain custom engine and transmission swap installations.

The integrated transmission cooler does not automatically replace every auxiliary cooler required by a specific build.

Confirm the transmission manufacturer’s cooling requirements and fitting compatibility before installation.

Automatic and Manual Transmission Compatibility

The radiator is advertised for both automatic and manual transmission conversion builds.

Automatic Transmission Applications

For compatible automatic transmission installations, the integrated transmission cooler may be used as part of the transmission cooling circuit.

Verify the cooler connections, fluid routing, and transmission requirements before installation.

Manual Transmission Applications

Manual transmission conversions generally do not require the radiator’s automatic transmission oil cooler.

The unused cooler connections should remain properly protected according to the manufacturer’s instructions.

The presence of an integrated transmission cooler does not prevent use in a compatible manual transmission build.

Jeep CJ Chevy V8 Swap Radiator Technical Specifications

Measurement note: The advertised 22 × 27-inch overall dimensions include the radiator inlet and outlet according to the supplied description. Confirm the physical dimensions and mounting arrangement before ordering.

1972–1983 Jeep CJ5 Chevy V8 Radiator Upgrade

The Jeep CJ5 is one of the most recognizable classic off-road platforms.

Its short wheelbase and compact engine compartment make cooling system packaging especially important during engine swaps.

The radiator is advertised for selected 1972–1986 CJ5 conversions, although the CJ5 was discontinued after the 1983 model year.

CJ5 Conversion Considerations

Before purchasing, verify:

• Radiator support opening.
• Available engine bay clearance.
• Upper and lower hose locations.
• Fan and shroud clearance.
• Engine mount positioning.
• Transmission cooling requirements.
• Radiator mounting locations.

Custom engine swaps may require additional fabrication even when the radiator dimensions are suitable.

Jeep CJ6 Chevy V8 Radiator Upgrade

The Jeep CJ6 is a longer-wheelbase variation of the classic CJ platform.

It remains popular among collectors, restoration enthusiasts, and custom off-road builders.

The radiator is advertised for selected CJ6 Chevrolet V8 conversion applications.

CJ6 Fitment Considerations

The CJ6 was discontinued in the U.S. market before the end of the advertised 1972–1986 range.

Confirm the exact vehicle year, radiator support dimensions, and conversion layout before ordering.

1976–1986 Jeep CJ7 Chevy V8 Radiator Upgrade

The Jeep CJ7 is one of the most popular classic Jeep platforms for engine swaps.

Its longer wheelbase compared with the CJ5 provides additional versatility for custom drivetrain and off-road builds.

The radiator is advertised for compatible 1976–1986 CJ7 Chevrolet V8 conversions.

Benefits for CJ7 Owners

A properly fitted aluminum radiator can help:

• Support dependable engine cooling.
• Replace aging or unsuitable radiator components.
• Accommodate compatible Chevy V8 hose routing.
• Provide integrated automatic transmission cooling.
• Complement a custom off-road or restoration build.

Verify the original radiator support, engine swap layout, and hose routing before purchasing.

Cooling Performance for Off-Road Driving

Classic Jeep CJ vehicles are commonly used for trail driving, rock crawling, recreational off-roading, and custom performance builds.

These activities can place significant demands on the cooling system.

Slow-Speed Trail Driving

At low vehicle speeds, natural airflow through the radiator is limited.

Cooling fan performance becomes especially important.

Rock Crawling

Sustained low-speed engine operation can increase cooling system demands.

A properly functioning radiator and fan system help manage engine temperatures.

Hot Weather Driving

Higher ambient temperatures reduce the temperature difference between the radiator and surrounding air.

Modified V8 Engines

Performance modifications can increase heat output.

A properly sized radiator helps dissipate this heat while maintaining adequate coolant circulation.

Custom Engine Swap Builds

Engine placement, fan clearance, radiator mounting, and hose routing can all affect cooling system performance.

An upgraded radiator cannot compensate for a malfunctioning thermostat, weak water pump, or improperly functioning cooling fan.

How to Install a Chevy V8 Swap Radiator in a Jeep CJ

Installing a radiator in a classic Jeep with a Chevrolet V8 conversion can be a manageable project for experienced DIY mechanics.

However, procedures vary by vehicle, engine, transmission, and conversion configuration.

Step 1: Allow the Engine to Cool

Park the vehicle on a level surface and allow the engine to cool completely.

Never remove a radiator cap while the cooling system is hot.

Step 2: Inspect the Engine Swap Layout

Before removing the original radiator, inspect the engine compartment.

Verify:

• Radiator support opening.
• Engine placement.
• Water pump and thermostat housing locations.
• Upper and lower hose routing.
• Cooling fan clearance.
• Transmission cooler routing.
• Radiator mounting locations.

Step 3: Drain the Cooling System

Position a suitable drain pan beneath the radiator.

Drain the coolant according to the appropriate service procedure.

Inspect the coolant for corrosion, contamination, or debris.

Step 4: Remove the Existing Radiator

Disconnect the upper and lower radiator hoses.

Remove the cooling fan shroud and any components obstructing radiator removal.

Disconnect transmission cooler lines where equipped.

Remove the radiator mounting hardware.

Carefully lift the existing radiator from the engine compartment.

Step 5: Compare the Replacement Radiator

Before installation, compare the aluminum radiator with the existing unit.

Verify:

• Overall radiator dimensions.
• Mounting bracket locations.
• Upper and lower hose connections.
• Cooling fan and shroud clearance.
• Transmission cooler fittings.
• Radiator cap configuration.
• Clearance around engine accessories.

Do not force the radiator into position if the mounting points or hose connections do not match.

Step 6: Install the Aluminum Radiator

Position the replacement radiator into the radiator support.

Confirm that the radiator sits securely and that the mounting arrangement is suitable.

Install the appropriate mounting hardware.

Custom brackets or mounting modifications may be necessary depending on the engine swap configuration.

Step 7: Connect the Radiator Hoses

Connect the upper and lower radiator hoses using appropriately sized hoses and clamps.

Ensure the hoses do not contact belts, pulleys, exhaust components, or sharp edges.

Avoid routing that causes kinks or restrictions.

Step 8: Connect Transmission Cooler Lines

For compatible automatic transmission applications, connect the transmission cooler lines using the correct fittings and procedures.

Inspect the lines for corrosion, damage, or leaks.

Do not overtighten fittings or use incompatible adapters.

Step 9: Verify Cooling Fan Clearance

Inspect the cooling fan and shroud arrangement.

Confirm adequate clearance from the radiator, belts, pulleys, and other moving components.

Use a properly sized fan system capable of providing adequate airflow through the radiator.

Step 10: Refill and Bleed the Cooling System

Refill the system using coolant appropriate for the engine and radiator materials.

Follow the applicable coolant filling and air-removal procedure.

Trapped air can interfere with coolant circulation and cause overheating.

Step 11: Verify Cooling System Operation

Start the engine and monitor coolant temperature.

Confirm that the thermostat opens and the cooling fan system operates correctly.

Inspect all radiator hose connections and transmission cooler fittings for leaks.

After the engine cools, recheck coolant level and mounting hardware.

Common Cooling Problems in Chevy V8-Swapped Jeeps

Custom engine swaps can introduce cooling system challenges that differ from factory configurations.

Incorrect Radiator Hose Routing

Hose connections that do not match the engine can create restrictions or interference.

Insufficient Fan Airflow

A poorly sized or incorrectly installed cooling fan can reduce radiator airflow.

Restricted Radiator Core

Corrosion, contamination, and deposits can reduce coolant flow.

Thermostat Failure

A faulty thermostat can restrict coolant circulation and contribute to overheating.

Water Pump Problems

A failing water pump can cause coolant leakage or reduced circulation.

Trapped Air in the Cooling System

Improper coolant bleeding can create air pockets and cause overheating.

Transmission Cooler Problems

Improper cooler routing or incompatible fittings can cause leaks or transmission overheating.

Before replacing components, inspect the complete cooling system and identify the underlying cause.

Complete Your Jeep CJ Chevy V8 Cooling System Upgrade

When installing a radiator in a Chevrolet V8-swapped Jeep CJ, consider inspecting related components.

Radiator Hoses: Use properly sized hoses that match the engine and radiator connections.

Thermostat: Verify correct operation and use the appropriate temperature rating for the engine.

Water Pump: Inspect for coolant leaks, bearing noise, and other signs of failure.

Cooling Fan Assembly: Confirm adequate airflow and clearance.

Fan Shroud: Use a properly designed shroud to help direct airflow through the radiator.

Radiator Cap: Verify the correct pressure rating for the cooling system.

Coolant: Use a coolant formulation appropriate for the engine and aluminum radiator.

Transmission Cooler Lines: Inspect for leaks, corrosion, and damaged fittings.

Engine Swap Mounting Components: Verify that the radiator and surrounding components are securely mounted.

Explore additional Jeep CJ, Chevrolet V8, and performance cooling components at Pro Street Online.

Is This 3-Row Jeep CJ Chevy V8 Swap Radiator Worth It?

For classic Jeep owners completing a Chevrolet V8 conversion, this radiator offers several practical advantages.

Its aluminum construction, three-row cooling core, Chevy V8-oriented hose configuration, and integrated transmission oil cooler make it an appealing option for compatible custom builds.

This radiator may be particularly useful for owners who:

• Are installing a Chevrolet V8 in a Jeep CJ.
• Drive a compatible CJ5, CJ6, or CJ7 conversion.
• Need a radiator with GM/Chevy-compatible hose locations.
• Want aluminum radiator construction.
• Are building a classic Jeep trail rig.
• Need integrated automatic transmission cooling.
• Are restoring or modifying a vintage Jeep.
• Want a performance-oriented cooling system upgrade.

Proper fitment remains the most important consideration.

Confirm the vehicle’s model year, engine swap configuration, transmission, radiator dimensions, and hose routing before purchasing.

Upgrade Your Jeep CJ Chevy V8 Cooling System at Pro Street Online

Whether you’re building a Chevy 350-powered CJ7, restoring a classic CJ5, or completing a custom CJ6 V8 conversion, dependable engine cooling is essential.

The 3-Row Aluminum Radiator for 1972–1986 Jeep CJ Chevy V8 Conversions combines a performance-oriented aluminum core, 38 mm inlet, 45 mm outlet, and integrated transmission oil cooler in a package intended for compatible GM-powered Jeep builds.

Designed specifically for Chevrolet V8 conversion applications, this radiator provides an upgrade path for owners seeking dependable heat dissipation and improved cooling system compatibility.

Shop Jeep CJ radiators, Chevy V8 swap cooling components, aluminum radiators, and classic off-road performance parts at www.ProStreetOnline.com.