Polished Stainless Steel Long Tube Headers for 1973-1987 Chevy GMC C/K Series SBC 265-400 Engines (C10 K10 K20 C20 C30 K30 Blazer Suburban Jimmy) - 2WD/Lifted 4WD - Requires Header Spark Plugs

Unleash the full potential of your classic 1973-1987 Chevy or GMC Square Body truck with our premium polished stainless steel long tube headers. Engineered for enthusiasts who demand both performance and durability, these headers are the ideal upgrade for your Small Block Chevy engine. Our meticulously designed headers ensure an optimal fit across a wide array of models, from the iconic C10 to the robust K30, including Square Body Blazers and Suburbans up to 1991. The heavy-duty stainless steel construction not only provides exceptional corrosion resistance but also features precisely sized 1 5/8" primary tubes and a 3" collector inlet/2.5" collector outlet for maximum exhaust scavenging and improved horsepower. Installation is straightforward, with a complete kit that includes all necessary gaskets, bolts, and collectors. Please note that for proper clearance and to avoid interference, you'll need to use header-specific spark plugs (such as Accel 0576S or 0414S) and we strongly recommend installing plug wire heat shields. If you have a stock-height 4WD vehicle, a minor adjustment to the left front leaf spring bolts will ensure a perfect fit. Upgrade your ride today and experience enhanced performance and a distinctive exhaust note that only high-quality long tube headers can provide.

• Broad Compatibility: Specifically engineered for Small Block Chevy (SBC) engines, these headers are a perfect fit for a wide range of 1973-1987 Chevy and GMC trucks, including popular models like the C10, K10, C20, K20, C30, K30, Blazer, and Suburban. They also accommodate 1973-1991 Square Body Blazer, Jimmy, and Suburban 2500/3500 series.
• Optimized Fitment: Designed to work with 2WD and lifted 4WD applications. For stock-height 4WD vehicles, a minor modification to the left front leaf spring bolts is required for optimal clearance.
• SBC Engine Ready: Compatible with a variety of Small Block Chevy engines from 1955-1995 when installed in 1973-1991 Square Body pickups, including 265, 262, 283, 305, 307, 327, 350, and 400 cubic inch displacements.
• Durable Construction: Crafted from heavy-duty polished stainless steel, these headers feature 1 5/8" primary tubes, a 3" collector inlet, and a 2.5" collector outlet, ensuring superior exhaust flow and excellent resistance to corrosion for long-lasting performance.
• Essential Clearance Note: Header-specific spark plugs and heat shields are mandatory for proper fitment and to prevent clearance issues with standard plugs. We recommend Accel 0576S (Taper Seat) or Accel 0414S (Gasket Seat) spark plugs, and plug wire heat shields are highly advised.
• Complete Kit: Your purchase includes all necessary gaskets, header bolts, and collectors, simplifying the installation process and getting you back on the road faster.
• These long tube headers are designed for a range of classic Chevrolet and GMC trucks and SUVs from the 1970s through the early 1990s. This includes: Chevrolet Full-Size Pickup Trucks (1973-1987) GMC Full-Size Pickup Trucks (1973-1987) Chevrolet C/K 2500 & 3500 Series Trucks (1973-1991) GMC C/K 2500 & 3500 Series Trucks (1973-1991) Chevrolet Suburban (1973-1991) GMC Suburban (1973-1991) Chevrolet K5 Blazer (1973-1991) GMC Jimmy (1973-1991)