What does it mean for these bearings to be 0.020 inch undersize?

This means the inside diameter of the bearings is 0.020 inches smaller than a standard bearing. They are designed to be used with a crankshaft that has been machined down by 0.020 inches. This ensures the correct oil clearance and proper fit on the crankshaft journals.

What type of engine is this bearing set for?

This ACL rod bearing set is specifically made for Ford V8 engines with displacements of 255, 289, and 302 cubic inches. It is compatible with a wide range of Ford vehicles from the 1960s through the 1990s.

What is trimetal construction?

Trimetal bearings are constructed with three layers: a steel backing for strength, a copper-lead alloy for load carrying capacity, and a thin overlay of babbitt (tin-based alloy) for conformability and embeddability. This construction offers a good balance of durability and performance for engine applications.

Questions? Call Us:631-982-0042

M-F 8AM-4PM ET

Trusted Since 1957

Est. 1957

Specifications

Brand: ACL
Part #: 8B634P-20
UPC: 9315726101681

ACL 1962-1998 Ford Prod V8 255/289/302 .20mm Oversized Trimetal Rod Bearing Set

Name: ACL 1962-1998 Ford Prod V8 255/289/302 .20mm Oversized Trimetal Rod Bearing Set
Brand: ACL
SKU: acl-acl-1962-1998-ford-prod-v8-255-289-302-20mm-oversized-trimetal-rod-bearing-s-t14-102620
Price: 39.62 USD
Availability: BackOrder

$39.62

On Backorder

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

1964-1996 Ford Mustang rod bearings by ACL. Set is 0.020 inch undersize for 255/289/302 V8 engines. Part# 8B634P-20. Direct fit.

Key Features

Fits 1964-1973, 1979, 1982-1995 Ford Mustang.
Fits 1975-1996 Ford F-150.
Fits 1980-1982 Ford Fairmont.
Fits 1962-1963 Ford Country Sedan.
Fits 1963 Ford 300.
Designed for Ford 255, 289, and 302 V8 engines.

Secure CheckoutFast Shipping631-982-0042

Will it fit your car?

About this part

Product Details

When you're rebuilding or refreshing the engine in your classic Ford, getting the right internal components is key. These ACL Trimetal Rod Bearings are designed for Ford V8 engines displacing 255, 289, and 302 cubic inches, and they come 0.020 inches undersize. This means they're intended to be used with crankshafts that have been machined down by 0.020 inches to ensure a perfect fit and proper oil clearance.

ACL has been making engine bearings for a long time, and these are well-built units. The trimetal construction offers a good balance of strength and compliance, which is important for handling the loads placed on rod bearings. Using bearings that are the correct size for your machined crankshaft is crucial for maintaining proper oil pressure and ensuring the longevity of your engine build. If your crankshaft has been turned, these bearings are the correct choice to get your engine back together right.