Patriot Exhaust H8025 Tri-5 Header, 55-57 SBC, Raw

Tri-5 Header for Chevy SB (55-57) Passenger Car, Wagon & Nomad

Our popular 55-57 Chevy passenger car headers for small or big block swaps offer superior performance and fit. These headers accommodate the GM 605 power steering box conversion and fit most motor mounts. Extra ground clearance makes "slammed" cars drivable and above frame rail exhaust system installation easy. Available in a raw finish for individual customizing or with Patriots metallic ceramic coating. Please see our online catalog for specific information like tube size, port shape and collector size.

• Our popular 55-57 Chevy passenger car headers for small or big block and LS1 / LS6 swaps.
• Durable 18-gauge tubing
• Comes complete with gaskets, header bolts and collector reducers.
• Available in three finishes; raw steel for individual customizing, Hi-Temp Black coating or Metallic Ceramic Thermal Barrier coating
• Limited One Year Warranty

• Patriot Exhaust H8025 1 5/8" Tri-5 Header Chevrolet Passenger Car/Wagon Small Block Chevrolet 55-57 Raw Steel
• Does not fit angle plug head
• Fits stk or 605 Strg
• side eng mounts/rear cross member
• Use Orig. V8 pitman arm
• Will not fit if eng 3/4 in+ forward
• Fits TCI mount kit 725-7005-80 and equiv. Danchuk mounts
• Will not fit 168 tooth flywheel/kickout starter
• with A/C

• Patriot Exhaust H8025 1 5/8" Tri-5 Header Chevrolet Passenger Car/Wagon Small Block Chevrolet 55-57 Raw Steel
• Does not fit angle plug head
• Fits stk or 605 Strg
• side eng mounts/rear cross member
• Use Orig. V8 pitman arm
• Will not fit if eng 3/4 in+ forward
• Fits TCI mount kit 725-7005-80 and equiv. Danchuk mounts
• Will not fit 168 tooth flywheel/kickout starter
• with A/C

1955-1957 Chevrolet Bel Air 4.3L/265 V8
1957 Chevrolet Bel Air 4.6L/283 V8
1955-1956 Chevrolet Corvette 4.3L/265 V8
1957-1961 Chevrolet Corvette 4.6L/283 V8
1962-1968 Chevrolet Corvette 5.3L/327 V8
1969-1982 Chevrolet Corvette 5.7L/350 V8
1980 Chevrolet Corvette 5L/305 V8
1955-1957 Chevrolet Nomad 4.3L/265 V8
1957 Chevrolet Nomad 4.6L/283 V8

Installation Instructions (PDF)