How many pistons do I need to order for my engine?

This part number is for a single piston. You will need to order four pistons to complete a rebuild for a 4-cylinder engine like the B18C1 found in the 1994-2001 Acura Integra GSR.

What is the significance of the +.5mm oversize bore?

The +.5mm oversize bore means this piston is slightly larger than the original factory size. It's intended for use when the engine's cylinder walls have been machined (bored) out to 81.5mm to accommodate this piston, often done to repair wear or to achieve a specific engine displacement.

What is the 2618 alloy and why is it used?

2618 alloy is a type of aluminum forging known for its high strength and good performance under stress. Manley uses it in these pistons because it offers superior durability compared to cast aluminum, making it suitable for performance applications.

Specifications

Brand: Manley Performance
Part #: 600005-1
UPC: 807298026718

Manley 94-01 Acura Integra GSR (B18C1) 81.5mm +.5mm Oversize Bore 9.0:1 Dish Piston (Single)

Name: Manley 94-01 Acura Integra GSR (B18C1) 81.5mm +.5mm Oversize Bore 9.0:1 Dish Piston (Single)
Brand: Manley Performance
SKU: manley-performance-manley-94-01-acura-integra-gsr-b18c1-81-5mm-5mm-oversize-bore-t14-230875
Price: 173.48 USD
Availability: BackOrder

$173.48

On Backorder

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

Fits 1994-2001 Acura Integra GSR. This single forged piston from Manley uses 2618 alloy for improved strength and performance.

Key Features

Fits 1994-2001 Acura Integra GSR (B18C1).
This is a single piston, sold individually.
Forged from domestic 2618 alloy for improved strength and performance.
Features a dish-top design with a 9.0:1 compression ratio.
The bore size is 81.5mm, which is a +.5mm oversize.
Includes premium Chrome Moly wrist pins.

⚠️ 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

Manley Performance is well-known for making strong engine components, and these pistons are a great example of that. If you're rebuilding the engine in your 1994-2001 Acura Integra GSR, this single forged piston is built to handle the demands of performance tuning. It's designed with a 9.0:1 compression ratio and a dish shape, specifically for the B18C1 engine.

These pistons are forged from 2618 alloy, which is a strong material that holds up well under high stress. They also feature cam and barrel skirt profiles that help generate power while being easier on your cylinder walls. Manley pays close attention to the details, ensuring the ring lands and grooves are machined to strict standards for a better seal and improved power output. This piston is 81.5mm, which is a +.5mm oversize bore, so it's meant to be used when your cylinder walls have been bored out to match.

Keep in mind that this piston is sold individually, so you'll need to order the correct quantity for your engine. Also, this part is not CARB approved and cannot be shipped to California.