What is the horsepower rating for this rotating assembly?

With the standard 7/16-inch ARP 8740 cap screws, this assembly is rated for up to 900 horsepower. If you opt for the upgrade to ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What specific engine configuration does this assembly fit?

This rotating assembly is designed for BBC (Big Block Chevrolet) engines. It features a 4.750-inch stroke and a 4.600-inch bore, creating a 632 cubic inch displacement.

Are there any restrictions on shipping this product?

Yes, this product is not CARB approved and cannot be shipped to California due to emissions regulations.

Specifications

Brand: Manley Performance
Part #: 28632X
UPC: 807298105604

Manley Rotating Assembly, BBC 632 4.750 STROKE/4.600/-3cc

Name: Manley Rotating Assembly, BBC 632 4.750 STROKE/4.600/-3cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-632-4-750-stroke-4-600-3cc-t14-881095
Price: 3795.58 USD
Availability: BackOrder

$3795.58

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance is known for well-built engine components. This BBC 632 rotating assembly features a 4.750" stroke and supports up to 1500 HP.

Key Features

This rotating assembly fits BBC engines and features a 4.750-inch stroke and 4.600-inch bore.
The crankshaft is forged from 4340 steel for enhanced strength and durability.
Connecting rods are 4340 forged steel H-beams, equipped with 7/16-inch ARP 8740 cap screws.
Optional ARP 2000 cap screws are available for increased horsepower capacity.
Pistons are 2618 forged aluminum Platinum Series with Premium Chrome Moly wrist pins.
The assembly is rated for up to 900 horsepower with ARP 8740 bolts.

This rotating assembly is designed for BBC (Big Block Chevrolet) engines. Please consult with a professional or refer to manufacturer specifications to confirm compatibility with your specific engine build.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

Manley Performance has built a solid reputation for making robust engine components, and this BBC 632 rotating assembly is a prime example of their commitment to strength and reliability. If you're building a serious big-block Chevrolet engine, this assembly is designed to handle significant power. It features a substantial 4.750-inch stroke, paired with a 4.600-inch bore and -3cc piston dish, creating a 632 cubic inch displacement. This combination is a popular choice for those looking to maximize cubic inches and power output from a BBC platform.

The heart of this assembly is a crankshaft forged from 4340 steel, chosen for its exceptional strength and durability under high stress. Complementing the crank are H-beam connecting rods, also forged from 4340 steel, which are known for their excellent strength-to-weight ratio. These rods come equipped with 7/16-inch ARP 8740 cap screws, a well-regarded fastener for performance applications. For those pushing the limits, there's an option to upgrade to ARP 2000 cap screws, which significantly increases the horsepower capacity of the assembly.

The pistons are Manley's Platinum Series, forged from 2618 aluminum, a material selected for its thermal expansion properties and strength. They come complete with Premium Chrome Moly wrist pins, ensuring reliable operation under extreme conditions. With the standard ARP 8740 bolts, this rotating assembly is rated for up to 900 horsepower. Opting for the ARP 2000 cap screws raises that capability to an impressive 1,500 horsepower, giving you a clear upgrade path as your build progresses. Please note that this assembly is not CARB approved and cannot be shipped to California.