Enhance your Chevrolet or GMC's performance with the Hooker 2454HKR Super Competition Long Tube Header. Designed specifically for Chevy Big Blocks, this high-performance exhaust component is crafted from durable 16 gauge mild steel, ensuring longevity and reliability. The black heat-resistant finish not only adds a sleek look under the hood but also withstands high temperatures with ease. These headers feature 1.625-inch diameter tuned length tubes which maximize exhaust scavenging and velocity, significantly boosting your vehicle's overall power output. With its unique mandrel bent tubing, the Hooker Exhaust Header offers smooth exhaust flow, minimizing back pressure thanks to its long transition 3-inch collectors. Each header comes equipped with precision machined 5/16-inch flanges, ensuring the best sealing surface and flawless fitting to reduce the risk of leaks. Whether you're a DIY enthusiast or a professional mechanic, the Hooker 2454HKR makes installation straightforward with all necessary hardware included, and it pairs perfectly with other performance exhaust upgrades available at PartsHawk.com.

• Tuned length tubes maximize exhaust velocity
• Long transition collector minimizes back pressure
• 1.625in. mandrel bent tubing for optimum flow
• Black heat-resistant finish for durability
• Precision machined flanges ensure perfect fit
• Includes all necessary installation hardware
• Enhances Chevy Big Block engine performance

Application:	Automotive
Coated Finish:	Black
Collector Diameter:	3in.
Engine Make/Size:	Chevy Big Block
Head Style:	Long-Tube
Material:	Mild Steel
Port Shape:	Same As Port/Can Be Matched
Primary Tube Diameter:	1.625 in.
Tube Direction:	Down Swept
WARNING CA Prop 65:	Yes

• 1968-1974 GMC C15/C1500 Pickup | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1968-1974 GMC C35/C3500 Pickup | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1973-1986 Chevrolet C20 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1973-1974 GMC C15/C1500 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1973 GMC Jimmy | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1974 GMC C25/C2500 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1975-1986 Chevrolet C30 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1975-1978 GMC C15 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1975-1978 GMC C25 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1976-1978 Chevrolet K5 Blazer | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1979-1986 GMC C2500 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1979-1986 GMC C2500 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1968-1974 Chevrolet C30 Pickup | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1968-1974 GMC C25/C2500 Pickup | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1973 Chevrolet Blazer | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/ Will Void The Warranty
• 1973 Chevrolet Blazer | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1973-1980 Chevrolet C10 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1975-1978 GMC C15 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1975-1978 GMC C25 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1975-1978 GMC C35 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1976 GMC Jimmy | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1979-1980 GMC C1500 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1979-1980 GMC C1500 Suburban | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1979-1986 GMC C3500 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1987-1988 Chevrolet R30 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1987-1989 GMC R3500 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
• 1989 Chevrolet R3500 | Note: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 3 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only;Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty