Upgrade your classic Chevy or GMC truck with Certified Automotive Experts Thermal Coated Headers, engineered for 1973–1987 C10, K10, C20, K20, C30, K30, Blazer, Jimmy, and Suburban models equipped with Small Block Chevy V8 engines. Designed for both 2WD and 4WD applications, these exhaust headers combine dependable construction, improved exhaust flow, and durable thermal protection.
These Thermal Coated Headers feature precision-formed steel tubing with 1 5/8-inch primary tubes and 2.5-inch collectors, providing an efficient exhaust path for Small Block Chevy engines ranging from 265 to 400 cubic inches. The CNC-machined 3/8-inch flanges provide a precise mounting surface, while TIG-welded joints deliver strength and long-term durability.
The black aluminized thermal coating helps protect the headers from corrosion while providing improved heat management compared with uncoated steel headers. This makes them an excellent choice for classic truck restorations, performance builds, street trucks, and custom square body projects.
Whether you're searching for C10 headers, square body headers, Chevy truck headers, GMC truck headers, or Small Block Chevy headers, this set provides a performance-focused solution for compatible 1973–1987 GM truck applications.
Thermal Coated Headers for classic Chevy and GMC trucks
Precision-formed steel tubing
1 5/8-inch primary tubes
2.5-inch collectors
CNC-machined 3/8-inch header flanges
TIG-welded construction
Black aluminized thermal coating
Helps improve exhaust flow
Provides corrosion resistance and heat protection
Designed for Small Block Chevy V8 engines
Compatible with 265–400 cubic-inch SBC engines
Suitable for 2WD and 4WD applications
Ideal for C10, K10, C20, K20, C30, K30, Blazer, Jimmy, and Suburban builds
Left header assembly
Right header assembly
Copper/fiber multi-layer head gaskets
Copper collector gaskets
Mounting hardware
These Chevy truck headers are designed for:
1973–1987 Chevy C10
1973–1987 Chevy K10
1973–1987 Chevy C20
1973–1987 Chevy K20
1973–1987 Chevy C30
1973–1987 Chevy K30
Chevy Blazer
GMC Jimmy
Chevy/GMC Suburban
Small Block Chevy V8 engines, 265–400 cu in
2WD and 4WD applications
Thermal Coated Headers are a popular choice for classic truck and performance applications because they combine the benefits of performance exhaust headers with additional protection against heat and corrosion. The thermal coating helps protect the steel tubing while providing a durable black finish that complements classic Chevy and GMC engine bays.
For a square body restoration or performance build, these long tube-style exhaust headers can provide a more efficient exhaust path than restrictive factory manifolds. Combined with the 1 5/8-inch primaries and 2.5-inch collectors, they are designed to support improved exhaust flow for Small Block Chevy V8 applications.
Q: What vehicles do these Thermal Coated Headers fit?
A: They are designed for 1973–1987 Chevy and GMC C/K-series trucks and related square body applications, including C10, K10, C20, K20, C30, K30, Blazer, Jimmy, and Suburban models.
Q: What engines do these headers fit?
A: These Small Block Chevy headers are designed for SBC V8 engines ranging from 265 to 400 cubic inches.
Q: What size are the primary tubes?
A: The primary tubes measure 1 5/8 inches.
Q: What size are the collectors?
A: The collectors measure 2.5 inches.
Q: What are these exhaust headers made from?
A: The headers are constructed from precision-formed steel tubing with CNC-machined flanges and TIG-welded joints.
Q: What type of coating do these headers have?
A: They feature a black aluminized thermal coating designed to provide heat protection and corrosion resistance.
Q: Are these C10 headers suitable for 2WD and 4WD trucks?
A: Yes, they are designed for compatible 2WD and 4WD Chevy and GMC truck applications.
Q: Are gaskets and hardware included?
A: Yes. The kit includes left and right header assemblies, copper/fiber multi-layer head gaskets, copper collector gaskets, and mounting hardware.
Q: Are these suitable for square body Chevy builds?
A: Yes. These square body headers are designed for compatible 1973–1987 Chevy and GMC C/K-series trucks and related SUV applications.
Q: Are these long tube headers?
A: These headers use a long-tube-style design intended to provide an efficient exhaust path and improved exhaust flow for compatible Small Block Chevy applications. Always verify the specific configuration and vehicle fitment before ordering.