Features:

• Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity
• Heavy duty 16-gauge tubing for increased strength and durability
• Smooth transition, 1-5/8” diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response
• OE style 2-1/2” ball and socket collector connects to factory exhaust head pipe with no cutting or welding
• TIG-welded, machined 3/8” header flange for a leak-free seal and maximum strength
• Premium aluminum header gaskets included
• Coated in a satin silver metallic ceramic thermal barrier coating for an aggressive look and reduced underhood temperatures
• Headers are a must if you are using a cold air intake, cat-back exhaust system or tuner
• C.A.R.B. EO# D-115-20

About Flowtech

Flowtech provides high-quality performance exhaust systems at a great value. Explore our lineup of headers, mufflers, and exhaust systems at our official retailer, Holley.com!​

• Mr. Gasket Header Bolts - 3/8-16 x 3/4 Inch Hex Head - Set of 16

  Fits 1965-1990 Chevrolet 396-454 Big Block and 1962-2001 Ford 221-351W

  Part# 919G

  $15.32

  Qty: 

  Add To Cart

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

C.A.R.B. EO #D-115-20