What is the primary benefit of using 2618 alloy forgings for pistons?

2618 alloy forgings are used because they offer superior strength and performance compared to cast aluminum. This makes them well-suited to handle the high stresses and temperatures found in performance and racing engines.

What does the -18cc dish on the piston mean for my engine build?

The -18cc dish is a specific volume machined into the top of the piston. This dish helps to control the compression ratio when paired with specific cylinder heads and a particular stroke length, allowing tuners to achieve desired performance characteristics.

Are these pistons compatible with all LS engine blocks?

These pistons are designed for Small Block Chevrolet LS Series engines with a 4.075 inch bore and 3.662 inch stroke. It is crucial to verify that your specific engine block and crankshaft combination match these specifications for proper fitment.

Specifications

Brand: Manley Performance
Part #: 596975C-8
UPC: 807298101385

Manley Small Block Chevrolet LS Series 4.075in Bore -18cc Dish 3.662in Stroke Platinum

Name: Manley Small Block Chevrolet LS Series 4.075in Bore -18cc Dish 3.662in Stroke Platinum
Brand: Manley Performance
SKU: manley-performance-manley-small-block-chevrolet-ls-series-4-075in-bore-18cc-dish-t14-169199
Price: 1004.51 USD
Availability: BackOrder

$1004.51

On Backorder

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

Manley Platinum Series LS pistons for Small Block Chevrolet. 4.075" bore, -18cc dish, 3.662" stroke.

Key Features

Fits Small Block Chevrolet LS Series engines with a 4.075 inch bore.
Features a -18cc dish volume and a 3.662 inch stroke.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Includes tool steel wrist pins for added durability.
Designed with proven cam and barrel skirt profiles to reduce cylinder wall wear and generate power.
Exacting standards for ring lands and grooves ensure enhanced ring seal and more power.

These pistons are designed for Small Block Chevrolet LS Series engines. Please consult 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

If you're building a high-performance Small Block Chevrolet LS engine, these Manley Platinum Series pistons are a solid choice. They're designed for a 4.075-inch bore with a -18cc dish and a 3.662-inch stroke, which is a common setup for increasing displacement and tuning compression ratios for serious power. Manley has a reputation among professional engine builders for making well-built internal engine components, and these pistons are a prime example of that.

What sets these pistons apart is the material and the machining. They're forged from domestic 2618 alloy, which is known for its strength and ability to handle the stresses of a performance engine. The skirt profiles are carefully shaped to reduce friction and wear on your cylinder walls while still generating power. Manley also pays close attention to the ring lands and grooves, ensuring a tight seal for better combustion efficiency and more horsepower. They even use unique fixturing that allows them to machine the skirt and ring grooves in the same operation, which helps ensure everything is perfectly square for optimal ring seal.

This set includes tool steel wrist pins, and depending on the specific part number, you might have options for even more durable wrist pin alloys. These pistons are a critical component for anyone looking to get the most out of their LS engine build. Keep in mind that these are not CARB approved and cannot be shipped to California. You'll want to refer to the manufacturer's installation instructions for details on proper fitment and assembly into your engine block.