ACL 8B663HC-STD Race Series Standard Main Bearing Set for Chevy V8 305/350/400, CT-1 Coated

ACL Chevy V8 305/350/400 Race Series Standard Size Main Bearing Set - CT-1 Coated

The ACL 8B663HC-STD Race Series main bearing set is designed for Chevrolet small-block V8 engines in 305, 350, and 400 cubic-inch applications. This standard-size main bearing set uses ACL’s CT-1 coating to support dependable crankshaft protection and consistent performance in demanding automotive and performance-engine environments.

Engineered for builders who require reliable bearing function under increased operating loads, the ACL Race Series set is manufactured to provide accurate fitment and durable service when paired with a properly prepared engine block and crankshaft. The standard-size specification is intended for crankshafts and main bores that remain within the original factory dimensions and required service tolerances.

CT-1 coating technology provides an additional protective surface designed to help reduce friction and improve resistance to wear during operation. The bearing set is suitable for performance rebuilds, street-driven applications, and other Chevrolet small-block projects where dependable main-bearing performance is important. Always verify crankshaft journal measurements, block specifications, and bearing clearance requirements before installation.

Fitment: Chevrolet V8 305, 350, and 400 cubic-inch engine applications, subject to engine-year and configuration-specific verification. Professional installation and clearance checks are recommended.

What's Included: One ACL Race Series standard-size main bearing set, part number 8B663HC-STD.

Features:

• Race Series Construction: Designed for demanding performance and automotive engine applications.
• CT-1 Coated: Protective coating helps support reduced friction and resistance to operating wear.
• Standard Size: Intended for crankshafts and main bores that meet original factory dimensions and service tolerances.
• Chevrolet Small-Block Fitment: Applications include Chevy V8 305, 350, and 400 cubic-inch engines, pending configuration verification.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1