Perfect Circle CB663FND Connecting Rod Bearing F-Series Doweled Small Block Chevy LS1

The Perfect Circle CB663FND is a high-performance connecting rod bearing designed for Small Block Chevy and GM LS1 engines. This precision-engineered bearing is part of the F-Series performance line, featuring a narrowed profile with dowel pin holes for secure positioning and alignment during installation.

Key Features:

• F-Series performance bearing construction for race and high-performance applications
• Narrowed bearing design for optimal crankshaft clearance
• Doweled configuration with locating pin holes for precise bearing placement
• Standard size bearing for factory specification crankshaft journals
• Engineered for Small Block Chevy V8 and GM LS1/LS-Series engines
• Tri-metal construction with hardened steel backing for maximum durability
• Precision tolerances for proper oil clearance and bearing crush

Perfect Circle bearings are manufactured to OEM specifications and are suitable for engine rebuilds, performance upgrades, and racing applications. The F-Series bearings offer enhanced durability and performance characteristics compared to standard replacement bearings, making them an excellent choice for modified engines and demanding operating conditions. Sold individually.