Exhaust Header Manifold for 1955 + Chevy SBC Small Block Hugger V8 262 265 283 305 327 350 400

Fitment: Fits All Small Block Chevy V8 Engines from 1955+ using the Standard Exhaust Pattern - 283, 305, 327, 350, 400, etc.  (except 1971 Chevrolet Nova,1972 Chevrolet Caprice，1983 Chevrolet Caprice Classic Sedan 4-Door 5.0L,1984 Buick Regal,1986 Chevrolet Caprice 5.7,1987 Chevrolet Caprice,1978 Chevrolet Corvette, 1973 Chevrolet Nova Base 5.7L 350) NOTE: Not fit 4WD Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. FLASHARK offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt-on, no modification needed. --Made with 1 5/8" OD diameter heavy-duty mandrel bent 18 gauge tubing--Large 2 1/2" collectors. Reducers are 2"--4 1/4" length from the bottom edge of the head to the outside of the middle tubes--Made with thick 5/16" flanges to resist warpage Specifications: Brand Name: FL