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Kooks Headers 7042-AS BBC Header Flange 5in Bore Spacing 3/8in Thick 304 Stainless Steel

(Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1963-76, Malibu 1965-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74 + 104 more models)

Part of: Kooks Headers Header Flanges - Performance Exhaust Cylinder Head Flanges

Other options in this family: Kooks Headers 7062-S Kooks Headers 7046-BS-2 Kooks Headers 7029-S-2000 Kooks Headers 7046-S2 Kooks Headers 7046-BS

Manufacturer

Picture for manufacturer Kooks Headers

Part Number

7042-AS
10 reviews
Sale Price

$76.62

Estimated ship date Sunday, November 22

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Product Details

The Kooks Headers 7042-AS is a precision-engineered header flange designed specifically for Big Block Chevrolet (BBC) applications. Constructed from high-quality 304 stainless steel with a robust 3/8-inch thickness, this flange delivers exceptional durability and heat resistance for high-performance exhaust systems.

Key Specifications:

  • 5-inch bore spacing for proper BBC port alignment
  • 2-3/8-inch primary tube compatibility
  • 3/8-inch thick 304 stainless steel construction for superior strength
  • Precision-machined ports for optimal sealing and flow
  • Corrosion-resistant stainless steel ensures long-lasting performance

This header flange is ideal for custom header fabrication or header repair on BBC engines. The 304 stainless steel material provides excellent resistance to heat and corrosion, while the substantial 3/8-inch thickness prevents warping under extreme temperatures. Whether you're building a street performance engine or a full competition powerplant, this Kooks flange delivers the precision fit and durability required for serious exhaust systems.

Proudly handcrafted in the USA by Kooks Headers, a family-owned company with over 60 years of proven performance in professional racing and street applications.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1963-76, Malibu 1965-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-74, Caprice 1966-76, C10 1975-81, El Camino 1966-75, Monte Carlo 1970-75, K2500 1991-95 + 98 more models

Thickness

0.375 in.

Material

304 Stainless Steel

Engine Make/Size

Chevy Big Block

Port Size

2.375 in.

Prop 65

WARNING: This product can expose you to chemicals including Chromium and Nickel; which are known to the State of California to cause cancer; birth defects or reproductive harm. For more information go to www.p65warnings.ca.gov

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Ordered a Trac-Bar from Autoplicity, and didn't have any problems. WILL be back!

Super fast delivery great company great prices

My first order and I must say, very impressive! Awesome prices and super-fast shipping direct from the manufacturer. Couldn't ask for more! I will return.

Quick and easy.. Thanks Google

Rather amazing and uneventful service in this day and age. Ordered a Thule bike rack for my Nissan Murano. It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box). I'd buy anything from these people without any reservation. AND, your order is insured - completely superfluous. Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.

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