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Frostbite FB309 Aluminum Radiator 3-Row GM LS Engine Swap

(1994-2004 Chevrolet S10; 1995-2005 Chevrolet Blazer)

Part of: Frostbite Performance Aluminum Radiator

Other options in this family: Frostbite FB288 Frostbite FB284 Frostbite FB167 Frostbite FB163 Frostbite FB710

Manufacturer

Picture for manufacturer Frostbite

Part Number

FB309
5 reviews
Sale Price

$494.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Frostbite FB309 is a high-performance 3-row aluminum radiator engineered specifically for GM LS engine swap applications. Designed to handle builds producing 600+ horsepower, this radiator combines maximum cooling capacity with show-quality craftsmanship.

Key Features:

  • 3-row core construction supports high-horsepower applications up to 600+ HP
  • Dual-pass crossflow design maximizes cooling efficiency by forcing coolant through multiple passes
  • 100% TIG welded and brazed seams for leak-proof durability
  • High-density core with more cooling fins per inch for superior heat dissipation
  • Polished aluminum top and tanks deliver custom show-car appearance
  • Billet aluminum filler neck for strength and visual appeal
  • Factory-style brass petcock drain valve for easy maintenance
  • Includes custom Frostbite 16 lb. high-performance radiator cap
  • Backed by manufacturer's 1-year limited warranty

This radiator is purpose-built for LS engine swaps into classic vehicles, providing the cooling capacity modern high-performance engines demand while maintaining a clean, professional appearance under the hood.

Products specifications

Fits

1994-2004 Chevrolet S10; 1995-2005 Chevrolet Blazer

# of Passes

Dual

Overall Dimension

18.000 in. x 32.000 in.

Radiator Core Row Quantity

3

Mounting

Saddle Mount

Core Dimension

14.750 in. x 26.250 in.

Material

Aluminum

Overall Length

32.000 in.

Mount Type

Saddle Mount

Steam Port Fitting Size

0.025 in. NPT

Core Thickness

2.200 in.

Prop 65

No

Cooling Row Diameter

0.6875 in.

Item Height

18.000 in.

Brand

Frostbite Cooling

Category

Belts and Cooling

Cooling Row Diameter

11/16"

Core Dimension

14-3/4 x 26-1/4

Core Thickness

2.20"

Emission Code

5

Flow Style

Dual Pass

Hose Location Inlet

Passenger

Hose Location Outlet

Passenger

Inlet / Outlet Size

AN Bungs

Inlet Diameter

AN Bungs

Inlet Location

Passenger

Inlet Size

AN Bungs

Mounting Type

Saddle Mount

Outlet Diameter

AN Bungs

Outlet Location

Passenger

Outlet Size

AN Bungs

Overall Dimension

18 x 32

Part Type

Radiator

Product Type

Radiator

Row Quantity

3

Rows

3

Steam Port Fitting Size

1/4" NPT

Sub Category

Radiators, Coolers and Related Components

Transcooler Provision

No

Transmission Oil Cooler Included

NO

great price

Product in stock and quick buy!

Great prices, have bought from before and will buy from again.

Great online experiance

Very good price on item. Shipped and arrived in very good time. Good communication.

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