Specifications
- Brand
- CP Pistons
- Part #
- SC7121X-1

CP Piston & Ring Set for Honda B-Series - Bore (84.5mm) - Size (+0.5mm) - CR (12.8) - SINGLE PISTON
$282.33
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CP Pistons forged piston for Honda B-Series engines. Bore 84.5mm, +0.5mm oversize, 12.8:1 CR. Part# SC7121X-1. Not CARB approved.
Key Features
- This is a single forged piston with rings for Honda B-Series engines.
- Features an 84.5mm bore size and is 0.5mm oversize.
- Offers a 12.8:1 compression ratio for improved performance.
- Forged construction provides increased strength and durability over cast pistons.
- Sold individually, allowing for custom rebuilds.
Product Details
If you're rebuilding the top end of your Honda B-Series engine and looking for a solid performance upgrade, this CP Pistons forged piston is a great option. This piston is designed to replace a single cylinder, featuring an 84.5mm bore and a +0.5mm oversize dimension, which is useful if your cylinder walls need a slight hone or clean-up. The 12.8:1 compression ratio is suitable for naturally aspirated builds aiming for improved power output.
CP Pistons are well-known for their forged construction, which makes them significantly stronger and more durable than cast pistons. This strength is crucial for handling the higher cylinder pressures and temperatures found in performance applications. This particular piston is sold individually, so you can purchase exactly what you need for your specific rebuild. Remember that this piston is not CARB approved and cannot be shipped to California.
Specifications
- Brand
- CP Pistons
- Manufacturer Part #
- SC7121X-1
Frequently Asked Questions
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CP Piston & Ring Set for Honda B-Series - Bore (84.5mm) - Size (+0.5mm) - CR (12.8) - SINGLE PISTON
