Ultima 10.7" Domed Piston Set for 4" Bore Engines — 10.1:1 Compression (93-964)

The Ultima 10.7" domed piston set is designed for 4" bore cylinders, delivering a precise 10.1:1 compression and including piston rings for a rebuild-ready kit.

Domed piston design enhances combustion efficiency, contributing to improved power output and fuel economy. Made in the USA, these pistons are crafted for reliability in high-performance applications or standard rebuilds. Whether restoring a classic or building a custom engine, this set provides dependable performance and a precise fit that meets exact specifications.

• Piston Length: 10.7 inches
• Compression Ratio: 10.1:1
• Bore Compatibility: 4 inch cylinders
• Material: Aluminum
• Design: Domed piston
• Includes: Piston rings compatible with #11-3121 Piston Ring Set
• Part Number: 93-964
• Country of Origin: Made in the USA

107 inch Ultima domed piston set for use with 4 inch bore cylinders with 10.1:1 compression with piston rings included.

Upgrade your engine with the Ultima 107 inch domed piston set designed specifically for 4 inch bore cylinders. Featuring a 10.1:1 compression ratio, this piston set provides optimal performance and durability. Each set includes piston rings and is crafted to meet precise specifications, ensuring a reliable fit and efficient engine operation. Made in the USA, these pistons are engineered for quality and longevity, making them suitable for high-performance applications or standard rebuilds. The domed design enhances combustion efficiency, contributing to improved power output and fuel economy. Whether you're restoring a classic or building a custom engine, this piston set offers a perfect balance of performance and dependability.

Features:

• Piston Length: 10.7 inches for optimal fit in 4 inch bore cylinders

• Compression Ratio: 10.1:1 for enhanced engine power

• Material: High-quality aluminum for strength and lightweight performance

• Design: Domed piston for improved combustion efficiency

• Includes: Piston rings compatible with #11-3121 Piston Ring Set

• Country of Origin: Made in the USA for quality assurance