What is the main function of crankshaft main bearings?

Crankshaft main bearings sit between the crankshaft and the engine block. Their primary job is to support the crankshaft, allowing it to spin smoothly while handling the significant forces from the engine's combustion cycles. They also maintain the critical oil clearance needed for lubrication.

What is the tensile strength of these ACL main bearings?

These ACL main bearings have a tensile strength of 200,000 psi. This high strength indicates a well-built component capable of withstanding the demanding loads within a Chevrolet V8 engine.

Do I need to replace all main bearings when installing this set?

Yes, this is a set designed to replace all the main bearings for your engine's crankshaft. It's important to replace them all at once to ensure consistent support and oil clearance across the entire crankshaft.

Specifications

Brand: ACL
Part #: 5M829A-20

ACL Chevrolet V8 396-402-427-454 1965-00 Engine Crankshaft Main Bearing Set

Name: ACL Chevrolet V8 396-402-427-454 1965-00 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-chevrolet-v8-396-402-427-454-1965-00-engine-crankshaft-main-bearing-set-t14-630612
Price: 34.78 USD
Availability: BackOrder

$34.78

On Backorder

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

Fits 1972-1974 Excalibur Phaeton. ACL Chevrolet V8 main bearing set for 396-454 engines, crucial for smooth crankshaft rotation.

Key Features

Fits 1972-1974 Excalibur Phaeton.
Designed for Chevrolet V8 engines with 396, 402, 427, and 454 cubic inch displacements.
Features a high-performance overlay material for improved durability and reduced friction.
Crucial for supporting the crankshaft and maintaining proper oil clearance.
Helps reduce wear and heat buildup in the engine's rotating assembly.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

200,000 psi tensile strength puts these ACL main bearings well above stock hardware, making them a solid choice for your 1972-1974 Excalibur Phaeton. These bearings are essential for the health of your Chevrolet V8 engine, specifically those with 396, 402, 427, or 454 cubic inch displacements. They sit between the crankshaft and the engine block, allowing the crank to spin freely while handling the immense forces generated during combustion.

ACL uses a high-performance overlay material that's built to withstand the high loads and temperatures found in performance V8 engines. This overlay helps reduce friction and wear, which is critical for the longevity of your engine, especially if you're pushing it a bit harder or have a high-mileage rebuild. The precise dimensions ensure they fit right into the main journals, providing the correct oil clearance needed for proper lubrication and cooling.

When you're rebuilding or refreshing your V8, getting the main bearings right is key. These ACL bearings are a well-built option that offers reliable performance for your classic Excalibur.