BRAND NEW SOUTHWEST SPEED PAINTED FLAT BLACK LONG TUBE HEADERS THAT FITS 1966-1975 CHEVY PASSENGER CARS WITH BIG BLOCK CHEVY 396-454 CU. IN. ENGINES (SWS PART #440-2389). THESE SOUTHWEST SPEED LONG TUBE HEADERS ARE A DIRECT FIT FOR 1964-1975 CHEVY PASSENGER CARS WITH BIG BLOCK CHEVY V-8 ENGINES. THE UNIQUE FULL-LENGTH & DOWN SWEPT DESIGN OF THIS HEADER MAKES IT A GREAT CHOICE FOR MANY GM PASSENGER CARS THAT INCLUDE: 1966-1975 CHEVELLE, 1970-1972 CAMARO, AND 1971-1974 FULL SIZE CHEVYS WITH BIG BLOCK CHEVY ENGINES. GROUND PARALLEL WITH .380" FLANGES ON THE CYLINDER HEAD SURFACE WITH 1 3/4" PRIMARY TUBES, & FEATURE 3" COLLECTORS AND ARE SUPPLIED WITH 2-1/2" REDUCERS THAT BOLT TO THE COLLECTORS, TO CONNECT THE REST OF THE EXHAUST SYSTEM TO THE VEHICLE. SOLD COMPLETE WITH HEADER BOLTS AND GASKETS, AND REDUCER BOLTS AND GASKETS. THESE HEADERS WILL FIT ANGLE PLUG OR STRAIGHT PLUG HEADS WITH NO SPARK PLUG OR SPARK PLUG WIRE RESTRICTIONS. FEATURES: LONG TUBE & DOWN SWEPT DESIGN HEADER 1 3/4" PRIMARIES TO THE 3" COLLECTORS INCLUDES A PAIR OF 2-1/2" REDUCERS TO CONNECT EXHAUST UNDER THE VEHICLE GREAT FOR SOME HOT RODS, RAT RODS & STREET RODS MORE PERFORMANCE BETTER FUEL MILEAGE GREAT CHOICE TO REPLACE CAST IRON EXHAUST MANIFOLDS ENHANCES THE LOOKS OF ANY ROD INCLUDES GASKETS AND MOUNTING HARDWARE PAINTED FLAT BLACK TO RESIST EARLY CORROSION FACTORY APPLICATIONS: GM PASSENGER CARS WITH BIG BLOCK ENGINES: CHEVY: 1971-1974 BEL-AIR 1971-1972 BISCAYNE 1972 BROOKWOOD 1970-1972 CAMARO 1971-1974 CAPRICE 1966-1973 CHEVELLE 1966-1975 EL CAMINO 1971-1974 IMPALA 1971-1972 KINGSWOOD 1970-1975 MONTE CARLO 1972 TOWNSMAN GMC: 1971-1974 SPRINT HEADER SPECS: MATERIAL TYPE: STEEL HEADER TUBE TYPE: LONG TUBE FLANGE STYLE: ROUND PORT FLANGE THICKNESS: .380" FINISH: PAINTED FLAT BLACK HARDWARE INCLUDED: YES GASKETS INCLUDED: YES TUBE OUTSIDE DIAMETER: 1 3/4" COLLECTOR DIAMETER: 3" REDUCER: 2 1/2" REDUCER LENGTH: 4 7/8" NOTES: 1. FITS 396, 402, 409, 427, & 454 CU. IN. BIG BLOCK CHEVY ENGINES WITH STANDARD EXHAUST PATTERN 2. MUST MODIFY STOCK EXHAUST TO RETAIN CATALYTIC CONVERTER(S). 3. WILL NOT FIT WITH A.I.R. (SMOG) PUMP. 4. WILL NOT FIT WITH POWERGLIDE TRANSMISSION EQUIPPED WITH A COLUMN SHIFTER. 5. WORKS WITH AIR CONDITIONING. PAINT WARNING: THESE HEADERS ARE PAINTED WITH A HIGH HEAT DULL BLACK PAINT. IT WILL GENERALLY DULL EVEN MORE WHEN THE ENGINE IS STARTED. THE HEADER PAINT WILL SMOKE AND LET OFF AN ODOR THE FIRST FEW TIMES THE ENGINE IS UP TO TEMPERATURE AND THE BLACK FINISH WILL BECOME DULLER TURNING CLOSER TO GRAY IN COLOR. IF EXHAUST TEMPERATURES ARE EXTREME AT START THE PAINT WILL BLISTER AND PEEL. THERE IS NO WARRANTY ON HEADER PAINT. HEADER RETURN POLICY: PLEASE REFER TO THE HEADER MEASUREMENT CHART BELOW TO MAKE SURE THE HEADER WILL FIT YOUR VEHICLE AND APPLICATION BEFORE ORDERING. IN THE EVENT YOU ORDER A HEADER THAT WILL NOT FIT YOUR VEHICLE AND APPLICATION, YOU MAY RETURN THEM FOR A REFUND, PROVIDING YOU DONT DAMAGE THE HEADER. WHEN YOU RECEIVE THE HEADER THE FINISH WILL BE PROTECTED AND MUST REMAIN UNSCRATCHED FOR A REFUND. IF YOU BEND OR DIMPLE ANY OF THE TUBES OR SCRATCH THE FINISH, WE WILL NOT BE ABLE TO SELL THE HEADER AND WILL NOT BE ABLE TO PROCESS A REFUND. USE CARE WHEN TRIAL FITTING HEADERS. REPACK THEM WELL TO PREVENT DAMAGE RETURNING THEM TO US. WE WONT PROCESS REFUNDS FOR SCRATCHED, DIMPLED, DENTED, OR BENT HEADERS. YOU CAN VIEW AND DOWNLOAD THE COMPLETE INSTRUCTIONS FOR THESE HEADERS HERE.
