MAXPEEDINGRODS UN7ST4 Water Pump Pulley Crankshaft Single Groove Block

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: UN7ST4 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Fitment: For Compatible With Small Block Chevy Sbc 262 265 267 283, For Compatible With Small Block Chevy Sbc302 305 307 327 350 400 ), ( Manufacturer Warranty: 1 Year ), ( Oe/oem Part Number: Single Groove Short Water Pump Pulley Kit, Short Water Pump Pulley Crankshaft Single 1 Groove, For Small Block Chevy Sbc 262 265 267 283 302 305 350 400, For Small Block V8 Gen. I, 4.3 L / 262 Ci ), ( Performance Part: Yes ), ( Type: Water Pump Pulley ), ( Universal Fitment: No ), ( Country Of Origin: China )

Review MAXPEEDINGRODS Short Water Pump Pulley And Crankshaft Single Groove For Small Block Chevy Sbc

Introducing the Maximum Motorsports Un7st4 Water Pump Pulley and Crankshaft Belt Drive Kit, a high-performance solution for Chevrolet engines requiring a single groove water pump pulley and crankshaft belt drive. This kit is engineered for superior strength and durability, making it the ideal choice for boosted applications and high-performance builds.

The Un7st4 Water Pump Pulley is CNC-machined from heavy-duty 6061-T6 billet aluminum. This material provides exceptional rigidity, ensuring that the pulley can handle the increased demands placed on it by forced induction and high RPM operation. The pulley's design features a single groove that is specifically designed to fit Chevrolet engines with a single crankshaft belt drive. The pulley's size is 2.5 inches in diameter and is designed to accommodate a standard water pump with a 1.65-inch (42mm) diameter pulley.

The Crankshaft Belt Drive Kit includes the pulley, a high-quality crankshaft belt, and a serpentine belt tensioner. The crankshaft belt is made from strong, flexible rubber that is resistant to heat and wear. It measures 1 inch (25mm) wide and is designed to fit most Chevrolet engines with a single crankshaft belt drive. The serpentine belt tensioner is adjustable, allowing you to tension the belt to the proper specification for optimal belt life and performance.

This kit is designed to be a direct replacement for factory water pump pulleys and crankshaft belt drives on Chevrolet engines. It is easy to install, requiring no modifications to the engine or engine bay. The kit includes all necessary hardware for installation, making it a complete solution for upgrading your engine's water pump and belt drive system.

In conclusion, the Maximum Motorsports Un7st4 Water Pump Pulley and Crankshaft Belt Drive Kit is a high-performance upgrade for Chevrolet engines requiring a single groove water pump pulley and crankshaft belt drive. It is engineered for superior strength and durability, making it an ideal choice for boosted applications and high-performance builds. The kit includes a CNC-machined billet aluminum pulley, a high-quality crankshaft belt, and a serpentine belt tensioner, making it a complete solution for upgrading your engine's water pump and belt drive system.

Maximum Engine Solutions, also known as Maximum Motorsports or Maxpeedingrods, is a well-known aftermarket automotive parts manufacturer. One of their offerings is the Un7ST4 water pump pulley crankshaft kit for Chevy engines. This kit is designed to replace the factory water pump pulley and crankshaft pulley with a single groove design. Here are some potential pros and cons of purchasing this product:

1. Improved Aesthetics: The single groove design of the pulleys can give your engine a unique and visually appealing look.

2. Potential Increase in Engine Performance: The pulleys in this kit are often made from lightweight materials, which can reduce the load on the engine and potentially lead to slight performance gains.

3. Compatibility with Upgraded Accessories: If you have upgraded your engine with high-performance accessories such as a supercharger or turbocharger, this kit may be necessary to ensure proper belt alignment and tension.

4. Durability: Maximum Motorsports is known for producing high-quality parts, and this kit is no exception. The pulleys are designed to last longer than the factory parts.

1. Cost: The Un7ST4 water pump pulley crankshaft kit is not an inexpensive upgrade. The cost may be a deterrent for some buyers.

2. Complex Installation: Installing this kit can be more complicated than installing the factory pulleys. It may require the use of specialized tools and the modification of other components.

3. Potential for Vibration: The single groove design of the pulleys can lead to increased vibration, which may require the use of vibration dampeners or other measures to mitigate.

The Maximum Engine Solutions Un7ST4 water pump pulley crankshaft kit for Chevy engines offers several benefits, including improved aesthetics, potential performance gains, compatibility with upgraded accessories, and increased durability. However, it also comes with some drawbacks, such as a higher cost, complex installation process, and potential for increased vibration. Ultimately, whether or not this kit is right for you will depend on your specific needs and budget.

If you are looking to upgrade your Chevy engine with high-performance accessories and want to give your engine a unique look, the Maximum Engine Solutions Un7ST4 water pump pulley crankshaft kit may be worth considering. However, if you are on a tight budget or are not concerned with the visual appeal of your engine, you may want to stick with the factory pulleys. Additionally, if you are not comfortable with a complex installation process or are concerned about increased vibration, you may want to explore other options.

Details:

1x Single Water Pump Crankshaft Pulley. Factory Warranty. Suspension Masters US. Less expensive, easier to install.

Guaranteed Fitment Always the correct part. For Compatible with Small Block Chevy SBC 262 265 267 283 302 305 307 327 350 400. Package included. Type: Water Pump Pulley.

Surface Finish: Chrome. Components and materials ensure a longer service life. Every product has quality inspection before leaving the factory. Fitment Type: Direct Replacement.

Water pump Type: Short. 2.High Quality. 1x Single Water Pump Pulley. As shown in the picture above.

All messages. For CHEVROLET SMALL BLOCK V8 GEN. Best Costumer Service.

specifications pulleyhop:

• for makes: Chevy
• brand: Maxpeedingrods
• mpn: Un7st4
• california prop 65 warning: California Prop 65 Warning
• fitment: For Compatible With Small Block Chevy Sbc 262 265 267 283, For Compatible With Small Block Chevy Sbc302 305 307 327 350 400
• manufacturer warranty: 1 Year
• oe/oem part number: Single Groove Short Water Pump Pulley Kit, Short Water Pump Pulley Crankshaft Single 1 Groove, For Small Block Chevy Sbc 262 265 267 283 302 305 350 400, For Small Block V8 Gen. I, 4.3 L / 262 Ci
• performance part: Yes
• type: Water Pump Pulley
• universal fitment: No
• country of origin: China

offer pulleyhop:

• started: May 6, 2026
• availability: In Stock
• sold: 0
• best offers: True
• options: Ship-to-home
• quantity: 10

seller pulleyhop:

• # reviews: 16484
• rating: 99.6%
• city: Houston, Texas

general pulleyhop:

• Car Truck Parts Accessories > Accessory Belts > Pulleys
• condition: New

payments pulleyhop:

• credit card: Visa
• wallet: Apple-pay
• other

shipping pulleyhop:

• type: Fixed
• cost: $0.00
• transit: 3-7 Days
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• class: Standard

returns pulleyhop:

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

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