AC DELCO 40170 Nos Gm Big Block Fuel Pump Mechanical Gas ZL1 L78

( Brand: Ac Delco ), ( Part Type: Fuel Block Pump ), ( Manufacturer Part Number: 40170 ), ( Oe/oem Part Number: A7 ), ( Vintage Part: Yes ), ( Performance Part: No )

Review AC DELCO Nos Gm Big Block Heavy Duty Fuel Pump Zl1 L78 Mechanical Gas fits 396 427

Introducing the AC Delco 40170 GM Big Block Fuel Pump, a high-performance replacement part designed specifically for select GM engines, including those found in the ZL1, L78, 396, and 427 models. This mechanical gas fuel pump is engineered to deliver an optimal flow rate, ensuring reliable fuel delivery to your engine for improved performance and efficiency.

The AC Delco 40170 fuel pump is constructed of durable materials, ensuring long-lasting reliability. The impeller is made of high-strength, corrosion-resistant material to withstand the rigors of continuous fuel delivery. The housing is engineered from heavy-duty cast aluminum, providing both strength and resistance to harsh engine environments. The pump's internal components are precision machined to tight tolerances, ensuring a perfect fit and smooth operation.

This fuel pump is designed to meet or exceed OE specifications, ensuring a direct fit and plug-and-play installation. It is engineered to work seamlessly with your vehicle's fuel system, providing accurate fuel pressure and volume for optimal engine performance. The pump's large, 1.5-inch diameter filter element provides ample filtration area to remove impurities and debris from the fuel supply, ensuring clean fuel reaches the engine.

Installation of the AC Delco 40170 GM Big Block Fuel Pump is a straightforward process. The pump comes with a new gasket to ensure a leak-free installation. The included mounting hardware makes installation a breeze, and the clearance between the pump and surrounding components is generous, allowing for easy access during installation.

In summary, the AC Delco 40170 GM Big Block Fuel Pump is a top-quality replacement part designed for select GM engines. It delivers reliable fuel delivery, is constructed of durable materials, and is easy to install. Whether you're looking to restore the performance of your classic muscle car or keep your daily driver running smoothly, this fuel pump is an excellent choice.

Pros and Cons of Buying AC Delco 40170 Fuel Pump for GM Big Block Engines

a. Designed for high-performance engines: This fuel pump is specifically engineered for GM big block engines, including those found in the ZL1, L78, 396, and 427.

b. Mechanical design: The mechanical design of this fuel pump ensures reliable operation, with fewer electrical components to fail.

c. Durable construction: Made with heavy-duty materials, this fuel pump can handle the demands of high-performance engines.

d. Easy installation: This fuel pump is a direct replacement for the original equipment, making installation straightforward and hassle-free.

a. Cost: Compared to some aftermarket or OEM electric fuel pumps, the AC Delco 40170 fuel pump may be more expensive.

b. Availability: Depending on your location, this fuel pump may be harder to find in local auto parts stores, as it is a specialized item.

c. Noise: Due to its mechanical design, the fuel pump may produce more noise compared to quieter electric fuel pumps.

The AC Delco 40170 fuel pump offers several advantages for those with GM big block engines, including its reliability, durability, and ease of installation. However, its cost and potential noise level are drawbacks to consider. Ultimately, if you value the peace of mind that comes with a robust fuel delivery system and are willing to pay a premium for it, the AC Delco 40170 fuel pump is a solid choice.

If you own a GM big block engine and are in the market for a new fuel pump, the AC Delco 40170 is an excellent option to consider. Its proven track record, durability, and compatibility with your engine make it a worthwhile investment for your vehicle.

Details:

Original Ford parts. This is smooch better than what I have. Absolute Best. They were safely packed, in fact so well even I had a hard time unwrapping the parts.

Was very impressed with communication, packing. First off the parts were in better condition than photos. Hard to find Mopar Parts. Loren opossum dolor sit Amer consecrate.

When I got to it, it was surrounded with bubble wrap.I am very happy this. Free shipping is to the lower 48 states only. Hope to do business again. Selling Car Parts Since 1995: Manufacturer Part Number 40170.

FAQs: Is this an original OEM part or a reproduction. The instrument gauge bezel for my 1984 Bronco ll was better than advertised. There was no way this could have been damaged or moved inside the box.The box fit it Perfectly. Factory high performance parts.

I have never seen this before. Whatever they have, I could use I m buying. It is exactly what the photos depicted. This company would get 10 stars if possible.

The way this was packaged, Iowas very impressed. Curses opossum nib urns gravid facings Alamogordo. Original GM Muscle car parts. There was three layers of cardboard with heavy tape.

It was shipped in great time. Applications are based upon various sources, although I try to make sure research is correct it can be flawed so please verify your applications. The box was Actually made specifically for what I bought.

part #: 40170 prices

• $499.99-$1000.00

specifications pumpunite:

• for models: 396, 427
• brand: Ac Delco
• part type: Fuel Block Pump
• manufacturer part number: 40170
• oe/oem part number: A7
• vintage part: Yes
• performance part: No

general pumpunite:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Pumps Sending Units

payments pumpunite:

• other
• credit card: Diners-club
• wallet: Apple-pay

offer pumpunite:

• quantity: 1
• sold: 0
• started: November 28, 2025
• availability: In Stock
• options: Ship-to-home

shipping pumpunite:

• type: Fixed
• service: USPS Ground Advantage, UPS Ground, FedEx Ground / FedEx Home Delivery
• class: Standard
• carrier: USPS, UPS, FedEx
• transit: 10-13 Days
• cost: $0.00

seller pumpunite:

• # reviews: 9910
• rating: 99.8%
• city: Tulsa, Oklahoma

returns pumpunite:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

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