What is the purpose of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They create a low-friction surface that allows the crankshaft to rotate smoothly while maintaining a precise oil clearance.

Does this bearing set include everything needed for installation?

This set includes the main bearings for your Chevrolet V8 400 engine. It is recommended to consult your vehicle's service manual for any additional components or preparation steps required for installation.

How do I ensure proper oil clearance with these bearings?

Proper oil clearance is crucial for bearing life. Always refer to the specific service manual for your 1970-1971 Stutz Blackhawk to verify the correct crankshaft journal measurements and bearing clearance specifications.

1970-1971 Stutz Blackhawk Main Bearings

Name: ACL Chevrolet V8 400 1970-80 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-chevrolet-v8-400-1970-80-engine-crankshaft-main-bearing-set-t14-631254
Price: 31.74 USD
Availability: BackOrder

ACL Chevrolet V8 400 1970-80 Engine Crankshaft Main Bearing Set

$31.74

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1970-1971 Stutz Blackhawk. ACL Chevrolet V8 400 engine crankshaft main bearing set.

Key Features

Fits 1970-1971 Stutz Blackhawk.
Designed for Chevrolet V8 400 engines.
Features a specialized overlay material for durability.
Helps maintain proper oil clearance and reduce friction.
Meets or exceeds original equipment specifications.

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Product Details

When you're rebuilding a Chevrolet V8 400 engine for your 1970 or 1971 Stutz Blackhawk, the main bearings are critical for keeping the crankshaft spinning smoothly. These ACL main bearings are built to handle the demands of that big block V8. They're designed to provide a solid foundation for your engine's rotating assembly, helping to ensure proper oil clearance and reduce friction.

ACL uses a specialized overlay material on these bearings, which is known for its durability and ability to conform to the crankshaft journal. This helps maintain consistent oil film thickness, even under load. They're a well-built replacement option that aims to meet or exceed the original specifications for your Stutz, ensuring your engine runs right.

When installing new main bearings, it's important to have the crankshaft journals cleaned and measured to ensure they are within factory specifications. Proper oil clearance is key to bearing longevity, so always refer to your engine's service manual for the correct torque and clearance specifications.