3977591 GENERAL MOTORS Nos Big Block Oil Pan Windage Tray Gm

Review GENERAL MOTORS Nos Gm Big Block Oil Pan Windage Tray Pump Studs Baffle Trap Door for GM 1965–1974

1965-1974 GM Big Block Oil Pan with Windage Tray, Pump Studs, Baffle, and Trap Door

This is an authentic 1965-1974 GM Big Block Oil Pan, engineered to provide optimal performance and longevity for your classic vehicle. Designed for GM engines with a displacement of 350 to 427 cubic inches, this oil pan is a must-have component for maintaining the health of your engine.

The oil pan comes equipped with a windage tray, which is a crucial accessory that helps reduce oil slosh and turbulence within the pan. This reduces the amount of oil that gets thrown onto the crankshaft, minimizing wear and tear on the engine. The windage tray also acts as an oil cooler, helping to keep the oil temperature stable.

The oil pan includes pump studs, which are used to secure the oil pump to the pan. Made from high-quality materials, these studs provide a strong and secure connection, ensuring the reliable operation of the oil pump.

Additionally, this oil pan features a baffle and a trap door. The baffle is designed to help prevent oil from splashing against the engine's crankshaft during aggressive driving or cornering. The trap door, located at the bottom of the oil pan, allows for easy draining of the oil during oil changes or engine service.

The oil pan is manufactured to meet or exceed OEM specifications, ensuring a perfect fit and a seamless installation process. With its robust construction and high-quality materials, this oil pan is an excellent investment for any classic car enthusiast looking to keep their 1965-1974 GM Big Block engine running smoothly and efficiently.

Buying a new oil pan, windage tray, pump, studs, baffle, and trap door for a 1965-1974 GM Big Block engine can be a significant investment for any car owner. To help you make an informed decision, here are the pros and cons of purchasing these parts:

1. Improved Engine Performance: A new oil pan, windage tray, pump, and related components can lead to better engine performance by ensuring that oil is properly circulated and kept in the crankshaft area.

2. Increased Durability: Worn or damaged oil pan and windage tray components can lead to oil leaks and engine damage. New parts can help prevent these issues and increase the overall durability of the engine.

3. Enhanced Appearance: Installing new components can enhance the appearance of the engine compartment, giving it a cleaner and more polished look.

1. Cost: Replacing all of these components at once can be expensive. Depending on the make and model of the vehicle, the cost of these parts can range from several hundred to over a thousand dollars.

2. Labor Costs: Installing these parts requires specialized knowledge and tools, so labor costs can add to the overall expense.

3. Potential for Other Issues: Once these components are replaced, other issues may arise, such as oil leaks from the rear main seal or the camshaft carrier. These issues may require further repairs and additional costs.

Replacing the oil pan, windage tray, pump, studs, baffle, and trap door for a 1965-1974 GM Big Block engine can lead to improved engine performance, increased durability, and enhanced appearance. However, the cost of these parts and labor can be significant. Additionally, there is a potential for other issues to arise once these components are replaced.

If you are experiencing issues with your engine's oil circulation, or if you notice signs of oil leaks, it may be worth considering replacing these components. However, it is important to consider the costs involved and to ensure that you are working with a reputable mechanic or auto parts supplier to ensure that the parts are of high quality and are installed correctly. If you are not experiencing any issues, it may be worth considering other maintenance or repair priorities to keep your vehicle in good working order.

Details:

This company would get 10 stars if possible. They were safely packed, in fact so well even I had a hard time unwrapping the parts. There was three layers of cardboard with heavy tape. Hard to find Mopar parts.

Factory high performance parts. You get everything pictured. Free shipping is to the lower 48 states only. See pictures for condition and wear as we rely heavily on photos.

Whatever they have, I could use I m buying. When I got to it, it was surrounded with bubble wrap.i am very happy this. Have never seen this before. First off the parts were in better condition than photos.

FAQs: is this an original oem part or a reproduction. The instrument gauge bezel for my 1984 bronco ll was better than advertised. It was shipped in great time. Absolute best.

There are a very few select listings where there known issues. The box was actually made specifically for what I bought. Was very impressed with communication, packing. The way this was packaged, Iowas very impressed.

If you do not see a shipping price available to you, then your home country is blocking its availability. It is exactly what the photos depicted. There was no way this could have been damaged or moved inside the box.the box fit it perfectly. This is smooch better than what I have.

These are not new parts unless noted so please set your expectations accordingly. Hope to do business again. Applications are based upon various sources, although I try to make sure research is correct it can be flawed so please verify your applications. Original Gm muscle car parts.

A used part may have dust, dirt, old paint, scratches or cracks. Original ford parts. Type oil pan.

specifications oilpanpete:

• for makes: Gm
• for years: 1965–1974
• brand: General Motors
• mpn: 3977591
• country of origin: United States
• 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 nos gm big: Block Oil Pan Windage Tray Pump Studs Baffle Trap Door
• oe/oem part number: 3969870 3902885
• type: Oil Pan
• vintage part: Yes

returns oilpanpete:

• policy: returns accepted
• paid by: seller
• time: 30 days

offer oilpanpete:

• in stock #: 3
• options: ship-to-home
• prices: $700.00–$1880.99
• item condition:
  • New
  • New other (see details)
• availability: in stock
• sold #: 20
• started: december 20, 2025

shipping oilpanpete:

• class: standard
• service: usps ground advantage, ups ground, fedex ground / fedex home delivery
• type: fixed
• carrier: usps, ups, fedex
• transit: 6-13 days

payments oilpanpete:

• wallet: paypal
• other
• credit card: mastercard

seller oilpanpete:

• city: tulsa, oklahoma
• # reviews: 10039
• rating: 99.8%

general oilpanpete:

• category: Auto Parts > Car Truck Accessories > Engines > Oil Pans