Cylinder (30005) by Cylinder Works?«. 13.2:1 compression. Bore Style: Standard. Bore Size: 77 mm. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.

Notes:
This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME.

Specifications:
Compression Ratio (x:y): 13.2:1
Displacement (cc): 249.00
Features:
Cylinder looks just like stock
Nickel silicon carbide plated for longer life
Will provide honest value and rugged dependability
Expertly crafted from the highest grade materials
Performance tested before going into production