1970-1974 C3 Fuel Line Fuel Tank to Fuel Pump TBW
Restore proper fuel delivery and factory-correct routing with this 1970–1974 Corvette TBW Fuel Line, engineered for models equipped with the evaporative emissions system introduced in 1970. Over time, original fuel lines suffer internal corrosion, flaking rust particles into the fuel filter and compromising engine performance. This OE-style replacement line is built using the original Tin Bundy Weld (TBW) method—just like the factory installed—to ensure smooth fuel flow, correct fitment, and resistance to modern fuel blends including ethanol.
This line runs from the fuel tank to the fuel pump, and is shaped to match the routing required for Corvettes with vapor recovery canisters. Whether you're running a small block or big block configuration, this TBW line delivers factory-level accuracy with improved longevity for street or show use.
Features
• Correct for 1970–1974 C3 Corvettes with vapor recovery system
• Replaces original line from fuel tank to mechanical fuel pump
• Tin Bundy Weld (TBW) tubing replicates OE manufacturing process
• Resists internal rust and modern ethanol corrosion
• Includes correct bends, length, and line diameter
• Ideal for use with original-style clips and vapor return routing
• Delivers clean, unrestricted fuel flow to the carburetor
Tech Notes
The TBW process involves brazing a seam-welded tube, yielding smooth inner surfaces and high corrosion resistance. It was used by GM on factory fuel and brake lines. This version is configured specifically for 1970–1974 Corvettes with evaporative emission canisters (charcoal canisters), introduced to meet early federal emission standards.
Because Details Matter
Even hidden components like fuel lines reflect the quality of your build. With Tin Bundy Weld construction and correct routing for emissions-era cars, this reproduction preserves both the performance and presentation of your early C3 Corvette.
Don't forget the correct Corvette Brake and Fuel Line Clips!
Also known under these part numbers: (For reference only)
- 2288556342
- 686420314868
- CVF1011-OE