GM 3902402 Crankcase Vent Tube General 300HP

( Brand: Gm ), ( Ipn: 3902402 ), ( Vintage Part: Yes ), ( Type: Intake Manifold )

Review GM General Motors Original 300hp Crankcase Vent Tube fits CORVETTE 1966–1967

Introducing the 1966-1967 GM 3902402 Crankcase VentTube for Chevrolet Corvette engines with a displacement of 327 cubic inches and a power output of 300 horsepower. This vital component is designed to ensure the efficient functioning of your Corvette's engine by regulating the flow of crankcase gases.

Crafted from high-quality materials, this vent tube is engineered to withstand the rigors of high-performance driving. Its durable construction guarantees a long service life, allowing you to enjoy your Corvette without worrying about costly replacements.

The 3902402 Crankcase VentTube features a smooth, polished finish that not only enhances the aesthetic appeal of your engine compartment but also reduces air turbulence for improved performance. Its precise fit and easy installation make it an ideal replacement for worn-out or damaged original parts.

This GM original equipment (OE) component is designed to meet the exact specifications of your 1966-1967 Corvette engine. By using a genuine GM part, you can trust that you are receiving a product that has been tested to meet the highest standards of quality and reliability.

Upgrading your Corvette with a new crankcase vent tube is a simple yet effective way to maintain the overall health and performance of your engine. With its robust construction, smooth design, and OE fitment, the 1966-1967 GM 3902402 Crankcase VentTube is an essential addition to any Corvette enthusiast's toolkit.

In summary, the 1966-1967 GM 3902402 Crankcase VentTube is a high-quality, durable, and essential component for your Chevrolet Corvette engine. Designed to meet the exact specifications of your 300hp engine, this polished vent tube ensures efficient crankcase gas flow, reduces air turbulence, and adds a touch of elegance to your engine bay. Trust GM for genuine, reliable, and performance-enhancing parts.

Buying a 1966-1967 Corvette 300hp crankcase vent tube, a GM part with the part number 3902402, can have both advantages and disadvantages, depending on your specific circumstances. Here's a breakdown of each:

1. OEM part: This vent tube is a genuine GM original equipment part. It is designed to fit and function perfectly in your 1966-1967 Corvette.

2. Quality: OEM parts are typically made from high-quality materials and manufactured to exacting standards. This can lead to better performance, longevity, and reliability.

3. Peace of mind: By using an OEM part, you can have confidence that you're making a wise investment in your vehicle.

1. Cost: OEM parts are often more expensive than aftermarket alternatives. This can be a significant factor for some buyers.

2. Availability: Depending on the specific part and your location, availability of OEM parts can be a concern. You may need to order it online or from a specialty dealer.

3. Installation: Installing an OEM part yourself can be more challenging than an aftermarket part due to the specific tools and knowledge required.

The decision to buy a 1966-1967 Corvette 300hp crankcase vent tube, GM part number 3902402, ultimately depends on your priorities and budget. If you value the peace of mind and quality that comes with an OEM part, and are willing to pay the premium, then this is the right choice for you. However, if cost is a concern, or if you're comfortable with the reliability of aftermarket parts, then you may want to consider alternative options.

If you're looking for the best possible fit, performance, and peace of mind, then I would recommend purchasing a new 1966-1967 Corvette 300hp crankcase vent tube, GM part number 3902402, from a reputable GM dealer or parts supplier. Make sure to have the necessary tools and knowledge to install it properly, or consider having it installed by a professional. If cost is a concern, then you may want to explore aftermarket alternatives, but be aware that you may sacrifice some level of quality and performance.

Details:

It does have a weld repair at the flange for gasket see last two pictures. E-mail or call with any questions. 1966-1967 Corvette Original 300hp Crankcase Vent Tube GM # 3902402, Removed from a 67 motor in good working condition.

part #: 3902402 prices

• $79.00-$225.00

specifications inputmanifolds:

• for models: Corvette
• for years: 1966-1967
• brand: Gm
• interchange part number: 3902402
• vintage part: Yes
• type: Intake Manifold

offer inputmanifolds:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: December 15, 2025
• sold: 0

payments inputmanifolds:

• wallet: Paypal
• credit card: Discover
• other

returns inputmanifolds:

• time: 14 Days
• paid by: Buyer
• policy: Returns Accepted

seller inputmanifolds:

• city: Harrison, Ohio
• # reviews: 5222
• rating: 99.8%

general inputmanifolds:

• Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds
• condition: Used

shipping inputmanifolds:

• transit: 3-7 Days
• service: Standard
• type: Fixed
• class: Standard
• cost: $12.00

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