Hooker Competition Headers - 1.625 in Primary - 2.5 in Collector - Metallic Ceramic - Small Block Chevy - GM Fullsize SUV / Truck 1963-91 - Pair Helmet Blower Filter These high flow throttle bodies

These high flow throttle bodies are available in sizes from 65mm to 105mm

Brake Pressure

3-1/4 in OD

Stilo Helmet

Revolver X4s

Hooker Competition Headers - 1.625 in Primary - 2.5 in Collector - Metallic Ceramic - Small Block Chevy - GM Fullsize SUV / Truck 1963-91 - Pair Helmet Blower Filter These high flow throttle bodiesHooker Headers Competition Header 2452 1HKR Metallic Ceramic Coating Tube Size 1 5 8 x 27 in. OD Collector Size 2. 5 in. OD Collector Length 8 in. Port Shape Same As Port Will Not Fit Angle Plug Heads High Performance Affordable Durable 16 Gauge Material Welds Easier Lasts Longer Heat Cured High Heat Resistant Vehicle Applications: 1975 1978 GMC C25 1967 1974 GMC C15 C1500 Pickup 1979 1986 GMC C3500 1975 1986 Chevrolet C20 1963 1974 Chevrolet C20