HEADER,BBC,1 3/4",75-91 GM TRUCKS,SUV,LONG TUBE,3",CERAMIC HOT COATED Superlite Steel RADIATOR FILL HOLE: YES

RADIATOR FILL HOLE: YES

Will work with both automatic & manual transmissions in 1965-1974 Chevrolet Chassis

ELIMINATING THE CHANCE OF THE COLLECTORS CONTACTING THE GROUND

IN THE EVENT YOU ORDER EXHAUST ITEMS THAT WILL NOT FIT YOUR VEHICLE AND APPLICATION

BRAND NEW SOUTHWEST SPEED STAINLESS STEEL DROPOUT BATTERY BOX THAT ACCEPTS 10 1/2" WIDE

HEADER,BBC,1 3/4",75-91 GM TRUCKS,SUV,LONG TUBE,3",CERAMIC HOT COATED Superlite Steel RADIATOR FILL HOLE: YESBRAND NEW SOUTHWEST SPEED CERAMIC HOT COATED PERFORMANCE LONG TUBE HEADERS THAT ARE DIRECT FIT FOR 1975 1991 GM TRUCKS WITH BIG BLOCK CHEVY 396 454 CU. IN. ENGINES (SWS PART #440 2448). THIS PAIR OF SOUTHWEST SPEED PERFORMANCE LONG TUBE HEADERS OFFER AN IMMEDIATE INCREASE IN PERFORMANCE BY ELIMINATING BACKPRESSURE, IMPROVING EXHAUST FLOW, AND BUILDING MORE HORSEPOWER. THE CONSISTENT TUBING DIAMETER CONTRIBUTES TO THE SMOOTH AIR FLOW AND GREATER