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1966 C2 427-425 1967-1968 L88 Fuel Pump - Carb Lines TBW 3 Pieces 3886152

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Item ID: 623-750
GM Part #: 3886152
Availability: In Stock - Ships today if ordered by 3 PM CT
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Fits Years:
  • 1966-1967
  • 1968
$56.99
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  • Description

1966 C2 427-425 1967-1968 L88 Fuel Pump - Carb Lines TBW 3 Pieces 3886152 - OEM Number(s) (3886152)

Fuel delivery at this level deserves factory-correct lines. This 3-piece Tin Bundy Weld (TBW) fuel line set is designed specifically for high-horsepower big blocks, including the 1966 L72 427/425hp and the legendary 1967–1968 L88 427/430hp Corvettes. These lines route fuel from the mechanical pump to the factory-positioned Holley carburetor using correct bends and OE-style tubing. Whether you’re restoring a concours-level L72 or preserving an authentic L88, this set eliminates the risk of rusty, kinked, or mismatched aftermarket plumbing.

Features
• Correct for 1966 L72 427/425hp and 1967–1968 L88 427/430hp Corvettes
• Reproduction of GM# 3886152
• 3-piece Tin Bundy Weld (TBW) fuel line set from pump to carburetor
• Pre-bent to factory specifications for OE routing and fit
• Preserves indexing between original-style fuel pump and carb inlet
• Eliminates fuel delivery issues caused by rust, kinks, or incorrect angles
• Made from OE-style TBW steel for proper look and function

Tech Notes
GM originally used Tin Bundy Weld (TBW) tubing for fuel and transmission lines on all high-output big blocks. The brazed seam construction provides corrosion resistance and flexibility under engine vibration. Some OEM pumps or carbs used reducers at the inlets/outlets—these may need to be reused from your original components to maintain a proper seal.

Because Details Matter
From L72 street legends to L88 race-bred beasts, these fuel lines deliver performance and authenticity in one clean install. No more guessing, no more bending—just factory-correct flow, just like St. Louis intended.

Also known under these part numbers: (For reference only)

  • 3886152
  • 686420316800
  • CVC1023-OE
Prop 65