OER 1967-72 Chevrolet Exhaust Pipe Extension Big Block 396ci, 427ci, 454ci 2-1/2″ O.D. Various Models

Part Number: 3890689-OER

OER 1967-72 Chevrolet Exhaust Pipe Extension Big Block 396ci, 427ci, 454ci 2-1/2″ O.D. Various Models

Part Number: 3890689-OER

Original price was: $26.39.Current price is: $22.95.

In Stock

( Inventory updated: 06/06/2026 )

Estimated ship date: 2-3 business days

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1967-72 Chevrolet Exhaust Pipe Extension – Big Block 396ci, 427ci, 454ci

Upgrade your classic Chevrolet with our expertly crafted Exhaust Pipe Extension, designed specifically for Big Block engines including the powerful 396ci, 427ci, and 454ci configurations. Engineered to provide an exceptional fit for various models from 1967 to 1972, this exhaust extension ensures a seamless connection between your exhaust manifold and main header pipe, delivering optimal performance and sound.

Key Features & Benefits

  • Superior Fit and Functionality: This reproduction short extension pipe is meticulously manufactured in high-quality stamped steel, replicating the original part in both appearance and performance.
  • Easy Installation: Designed to slip effortlessly between the exhaust manifold and main header pipe, making your exhaust system installation hassle-free.
  • Gasket Support: Supports the exhaust pipe packing gasket, ensuring a leak-free connection and enhancing overall exhaust efficiency.
  • Versatile Compatibility: Fits a wide range of GM Big Block applications, making it a versatile choice for your restoration project.

Technical Specifications

  • Length: 1-13/32 inches (O.L.)
  • Outer Diameter: 2-1/2 inches (O.D.)

Fitment Information

This Exhaust Pipe Extension is compatible with the following Chevrolet and GMC models:

  • 1965-1972 Chevrolet Corvette (Big Block)
  • 1967-1970 Chevrolet Camaro (Big Block)
  • 1967-1970 Chevrolet Impala (Big Block)
  • 1967-1970 Chevrolet Bel Air (Big Block)
  • 1967-1970 Chevrolet Biscayne (Big Block)
  • 1967-1970 Chevrolet Caprice (Big Block)
  • 1971-1972 Chevrolet Pickup Truck (Big Block)
  • 1971-1972 Chevrolet Suburban (Big Block)
  • 1971-1972 Chevrolet Blazer (Big Block)
  • 1967-1970 Chevrolet Chevy II / Nova (Big Block)
  • 1971-1972 GMC Pickup Truck (Big Block)
  • 1971-1972 GMC Suburban (Big Block)
  • 1971-1972 GMC Jimmy (Big Block)

Conclusion

Don’t compromise on your classic car’s performance and authenticity. Invest in our 1967-72 Chevrolet Exhaust Pipe Extension for a reliable and effective solution that ensures your Big Block engine performs at its best while maintaining the originality and charm of your vehicle. Order now and experience the difference in quality and performance!

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OER

Original Equipment Reproduction - OER - is the leading manufacturer and distributor of quality classic automotive restoration parts and accessories. OER products are meticulously manufactured to replicate the OEM appearance, quality and fit that meets or exceeds the original factory specifications.

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