What is the horsepower rating for this rotating assembly?

This Manley rotating assembly is rated for up to 750 horsepower with the standard 7/16? ARP 8740 cap screws. An optional upgrade to ARP 2000 cap screws allows it to support up to 1,500 horsepower.

What materials are used in this rotating assembly?

The crankshaft and connecting rods are forged from 4340 steel for strength and durability. The pistons are made from 2618 forged aluminum, a material chosen for its performance characteristics under high stress and heat.

What is the dome volume of the pistons included?

The pistons in this assembly feature a +11cc dome volume. This specification is important for calculating the final compression ratio when paired with specific cylinder heads and head gasket thickness.

Specifications

Brand: Manley Performance
Part #: 290960RX
UPC: 807298115504

Manley Rotating Assembly, SBC 383 3.750 STROKE/+11cc DOME

Name: Manley Rotating Assembly, SBC 383 3.750 STROKE/+11cc DOME
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-sbc-383-3-750-stroke-11cc-dome-t14-881165
Price: 3599.08 USD
Availability: BackOrder

$3599.08

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Manley Rotating Assembly, SBC 383 3.750 STROKE/+11cc DOME. Get a well-built rotating assembly for your SBC build.

Key Features

This product is a Manley Rotating Assembly for SBC 383 engines with a 3.750 inch stroke and +11cc dome pistons.
Includes a lightweight 4340 forged steel crankshaft.
Comes with 4340 forged steel H-beam connecting rods featuring 7/16? ARP 8740 cap screws.
Includes 2618 forged aluminum Platinum Series pistons with premium chrome moly wrist pins.
Rated for up to 750 horsepower with the standard ARP 8740 cap screws.
Can support up to 1,500 horsepower with optional ARP 2000 cap screws.

This rotating assembly is designed for Small Block Chevy (SBC) 383 cubic inch 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

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About this part

Product Details

This Manley rotating assembly gives you a complete, well-built package for your Small Block Chevy 383 stroker build. You get a lightweight 4340 forged steel crankshaft, 4340 forged steel H-beam connecting rods fitted with 7/16? ARP 8740 cap screws, and 2618 forged aluminum Platinum Series pistons that come with premium chrome moly wrist pins. This combination is designed to handle serious power, rated for up to 750 horsepower with the standard ARP 8740 fasteners, and can be upgraded to handle up to 1,500 horsepower with optional ARP 2000 cap screws.

The 3.750-inch stroke crankshaft is forged from 4340 steel, a strong material known for its durability under high stress, making it a solid foundation for a performance engine. The H-beam connecting rods are also forged from 4340 steel, offering a good balance of strength and weight, crucial for high-RPM operation. The included pistons are made from 2618 forged aluminum, a popular choice for performance applications due to its strength and ability to withstand high temperatures and pressures. The +11cc dome volume on the pistons is designed to work with specific cylinder head combinations to achieve your desired compression ratio.

This assembly is a popular choice for builders looking for a robust rotating assembly that can support significant power increases. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications to ensure optimal performance and longevity.