ACL Chevrolet Small-Block V8 Rod Bearing Set, Standard 8B663A-STD

ACL 8B663A-STD is a connecting-rod bearing set selected by its complete manufacturer number and engine-build specification. STD manufacturer size designation; verify the exact engine and assembled clearance.

Bearing Configuration

This is the A-suffix replacement bearing configuration. Do not substitute a Race Series H or HX bearing without checking the dimensional and clearance requirements.

Engine Application

Select this bearing by the exact 8B663A-STD catalog application and engine measurements. Confirm the engine code, bearing location, size and mating dimensions before ordering. Previous machining or an engine swap can change the required configuration.

Specifications

Quantity and Assembly Checks

Confirm the set contents, bearing positions and any separate thrust components against the complete manufacturer number. The photo is representative of the part family.

Measure shaft journals, housing bores and assembled oil clearance using the engine builders specification. Check oil-hole alignment, groove placement and crankshaft fillet clearance before final assembly. Catalog standard dimensions must not be treated as the finished dimensions for a different repair size.

Frequently Asked Questions

Is the year and model enough to choose this bearing? No. Match 8B663A-STD to the exact engine and measured build specification.

What size is this listing? STD manufacturer size designation; verify the exact engine and assembled clearance.

Can I substitute a different suffix? Compare the complete grade, size, locating features and assembled clearance before substituting any bearing.

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