Corvette Crankcase Rear Vent Tube. 300HP: 1966-1967

Restore authentic crankcase ventilation on your 19661967 Corvette with the Corvette Crankcase Rear Vent Tube for 300HP engines. This direct OEMstyle replacement captures the original routing of the crankcase breather from the rear of the engine, connecting to the PCV/aircleaner path to keep blowby gases moving away from hot surfaces and seals. Designed specifically for the 300HP smallblock era, this rear vent tube helps maintain proper crankcase pressure relief and keeps your intake and engine bay cleaner.

Why this vent tube matters for your restoration

Crankcase ventilation is not optionalit's a key part of engine reliability. The Corvette Crankcase Rear Vent Tube ensures the correct path for vented gasses, preserving authentic airflow dynamics and PCV system function. By restoring the original venting route, you reduce oil mist reaching the air cleaner and intake, helping prevent carbon buildup and unsightly oil deposits. For a periodcorrect rebuild or a showgrade restoration, this tube is essential to maintain both performance and authenticity.

• Exact fit for 19661967 Corvette 300HP enginesengineered to match the original dimensions and connection points.
• Restores original ventilation routingkeeps crankcase gases flowing through the intended path for proper PCV operation.
• Supports crankcase pressure managementa proper vent path helps minimize unwanted pressure buildup and associated leaks.
• Replaces worn or missing componentsa reliable replacement that preserves OEM appearance and function.
• Durable and vibrationtolerantbuilt to withstand the heat and movement of a classic V8 without compromising fit.

What you’ll experience in a typical build

With this rear vent tube in place, your 19661967 Corvette 300HP engine maintains faithful airflow, supporting steady idle, cleaner intake tracks, and reduced oil spray on nearby components. It’s especially valuable during a frameoff restoration, engine refresh, or ongoing maintenance where authenticity and correct engine breathing matter as much as horsepower.

Installation and care tips

• Cool the engine before handling; inspect the rear valvecover vent port for obstructions.
• Align the vent tube with the original routing path and secure with the proper fasteners to prevent movement at high RPMs.
• Verify the connection to the PCV or aircleaner intake that matches your 19661967 Corvette setup.
• Check for oil seals and gaskets in the surrounding area during reassembly to maintain a clean, leakfree engine bay.

Suitable for enthusiasts engaged in periodcorrect restorations, showquality rebuilds, or maintenance projects aiming to preserve the authentic look and function of the Corvette Crankcase ventilation system. Add this Corvette Crankcase Rear Vent Tube to your cart to complete the authentic 19661967 300HP engine presentation and reliability.