Hooker Blackheart Headers - 1-7/8" Primary - 3" Collector - Stainless - GM LS-Series 29701 Available with or without outer

Available with or without outer tube

Billet Aluminum Intercooler Manifold - Replaces Bulky Factory Manifold

All underdriven kits are thoroughly tested to ensure that the benefit comes without compromising the accessory performance

7mm) Thick (Nominal) with Cross-Drilled Composite Nut-Ring Installed

Hooker Blackheart Headers - 1-7/8" Primary - 3" Collector - Stainless - GM LS-Series 29701 Available with or without outerFits 1968 1972 2WD Trucks with Narrow Frame Rails & BHS511 Engine Mounting Brackets See photo for Identification of Frame Rail Style. Fits 1973 1974 2WD Trucks w Premium Mounting Brackets BHS540 Fits 1973 1974 C10 C20 & 1973 1974 Blazer & Jimmy Use w Premium Engine Mounting Brackets BHS540 Choose from Long Tube Headers w 1 3 4" or 1 7 8" Primary Tube Diameter & 3" Collectors 304 Stainless Steel Construction for Strength & Corrosion Protection