FOR 77-84 ROUNDED-LINE SBC V8 BLACK STAINLESS MANIFOLD LONG TUBE HEADER/EXHAUST

Description:

      This exhaust manifolds for the 1967-1977 Chevrolet Small Block Pickups were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our long tube 4-1 off-road headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 5.0L(305), 5.7L(350ci) and 6.6(400ci) engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.

• 100% Brand New,never been used
• Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
• i.e. Maximizing Smoothest High Exhaust Air Flow Rate
• TIG Welded CNC Machine Flange
• 2-Piece 4-1 Racing Specs Design (8-2-1)
• TIG Welded CNC Machine Flange
• Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
• 1.25" Inlet, 3.00" Outlet
• Bolts and Metal Gasket Included
• Professional Installation is Highly Recommended
• No Instruction Included

Package including:

• Just as pictures show
• 1 x Header exhaust system
• All necessary installation hardware

Fitment£º

• Chevy Corvette 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1971, 1972, 1973, 1974, 1975,1977, 1978, 1979, 1980, 1981,  V8 Engines(except 1977 Chevrolet K10, 1977 Chevrolet Corvette Base Coupe 2-Door 5.7L,1984 Chevrolet  C20 ,1979 Chevrolet Corvette Base Coupe 2-Door 5.7L£¬ 1965 Chevrolet Corvette Base Coupe 2-Door 5.3L )