{"product_id":"corvette-crankcase-rear-vent-tube-300hp-1966-1967","title":"Corvette Crankcase Rear Vent Tube. 300HP: 1966-1967","description":"\u003cdiv\u003e\n\u003cp\u003eRestore 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.\u003c\/p\u003e \u003ch3\u003eWhy this vent tube matters for your restoration\u003c\/h3\u003e\n\u003cp\u003eCrankcase 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.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit for 19661967 Corvette 300HP engines\u003c\/strong\u003eengineered to match the original dimensions and connection points.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRestores original ventilation routing\u003c\/strong\u003ekeeps crankcase gases flowing through the intended path for proper PCV operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSupports crankcase pressure management\u003c\/strong\u003ea proper vent path helps minimize unwanted pressure buildup and associated leaks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplaces worn or missing components\u003c\/strong\u003ea reliable replacement that preserves OEM appearance and function.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable and vibrationtolerant\u003c\/strong\u003ebuilt to withstand the heat and movement of a classic V8 without compromising fit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat you’ll experience in a typical build\u003c\/h3\u003e\n\u003cp\u003eWith 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.\u003c\/p\u003e \u003ch3\u003eInstallation and care tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCool the engine before handling; inspect the rear valvecover vent port for obstructions.\u003c\/li\u003e \u003cli\u003eAlign the vent tube with the original routing path and secure with the proper fasteners to prevent movement at high RPMs.\u003c\/li\u003e \u003cli\u003eVerify the connection to the PCV or aircleaner intake that matches your 19661967 Corvette setup.\u003c\/li\u003e \u003cli\u003eCheck for oil seals and gaskets in the surrounding area during reassembly to maintain a clean, leakfree engine bay.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eSuitable 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.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"CA","offers":[{"title":"Default Title","offer_id":40981626322993,"sku":"A229755DS","price":126.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/4078\/files\/medium_b1a10ebd-c50c-4bde-9397-ec9ae36622a6.jpg?v=1777043204","url":"https:\/\/www.corvetteguys.com\/products\/corvette-crankcase-rear-vent-tube-300hp-1966-1967","provider":"CorvetteGuys.com","version":"1.0","type":"link"}