814112 Flowmaster's Scavenger Series Elite long tube headers are designed to replace the restrictive factory cast iron manifolds. These high quality headers are manufactured from stainless steel and are ceramic coated for maximum durability. They feature 2 in. primary tubes, 3/8 in. thick flanges and incorporate Flowmaster's popular 3-1/2 in. ball flange collector connections ensuring a leak free installation. Scavenger Series long tube headers deliver maximum performance and are suited to the enthusiast who wants the best. Like all Flowmaster products the benefits include improved throttle response, power and engine efficiency. Designed for an easy fit, these headers include gaskets and necessary hardware for easy installation. Note 1- big block frame stands and motor mounts must be used to ensure proper engine location and header fit. Note 2 -this product is legal only for off highway use (except in California or states that have adopted California emission standards), racing use or for use on pre-emission controlled motor vehicles/motor vehicle engines (pre-1966 domestic vehicles certified to California standards, pre-1968 domestic vehicles certified to federal standards and all pre-1968 foreign vehicles), per the application guide. Features: High Temperature Ceramic Coating Dyno tuned for maximum performance Ball & Socket Collector Connections Stainless Steel Construction About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS Attachment Method Ball & Socket Flange Automotive Item Grade High Performance Part Bolt Size 3/8-16 x 1 Bolts/Studs Included Yes Brand Flowmaster CARB (California) Compliant No Collector Diameter 3.50 inch Collector Included Yes Color/Finish Silver Ceramic Emission Code 3 Engine Big Block Chevy Header Finish Silver Ceramic Header Flange Thickness (in) 3/8 inch Header Series Scavenger Series Elite Header Style Long Tube Inlet Port Shape Round Material Stainless Steel Outlet Diameter (in) 3.5 Primary Tube Dia. 2 inch Product Type Headers Reducers Included Yes Tube Gauge 16 Tube Lengths Unequal Length UPC 700042026289 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 814112 EMISSIONS 3 This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles. The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles: 1965 and older U.S. manufactured California Certified vehicles 1967 and older U.S. manufactured Federally Certified vehicles 1967 and older Foreign manufactured vehicle WARNING: It is against the law to install this part on an Emissions Controlled Vehicle The following vehicles are considered Emissions Controlled Vehicles: 1966 and newer U.S. manufactured California Certified vehicles 1968 and newer U.S. manufactured Federally Certified vehicles 1968 and newer Foreign manufactured vehicle TECH RESOURCES Instructions for Part# 814112 Warranty for Part# 814112 Fits 1967 to 1969 Camaro, 1968 to 1974 Chevy II and Nova with a 396 to 502 cubic inch displacement big block V8 engine, long tube headers