What does the '1.25' size designation mean for these bearings?

The '1.25' in the part number CR4447AM1.25 indicates that these connecting rod bearings are 1.25mm, or approximately 0.040 inches, undersize. This sizing is used when the crankshaft journals have been machined down during an engine rebuild to correct wear or damage.

What is the advantage of a bimetal aluminum base bearing?

Bimetal bearings, like these with an aluminum base, offer a good balance of strength, wear resistance, and thermal conductivity. This construction helps them handle the high loads and temperatures found in an engine's connecting rod application.

Do these bearings come with new connecting rod bolts?

This product is for the connecting rod bearing set only. Connecting rod bolts are typically sold separately, and it's recommended to use new, high-strength bolts when reassembling your engine.

Specifications

Brand: King Engine Bearings
Part #: CR4447AM1.25
UPC: 611500134357

King Engine Bearings Toyota Corolla 1600 (Size 1.25) Connecting Rod Bearing Set

Name: King Engine Bearings Toyota Corolla 1600 (Size 1.25) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-corolla-1600-size-1-25-connecti-t14-630696
Price: 32.55 USD
Availability: BackOrder

$32.55

On Backorder

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

Fits 1971-1982 Toyota Corolla. King connecting rod bearings with a bimetal aluminum base for your 1600 engine.

Key Features

Fits 1971-1982 Toyota Corolla and 1971-1973 Toyota Carina.
Connecting rod bearing set for the 1600 engine.
Features a bimetal aluminum base construction.
This set is 1.25mm (0.040 inches) undersize for use with machined crankshaft journals.

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About this part

Product Details

These King Engine Bearings are built with a bimetal aluminum base, a solid choice for your 1971-1982 Toyota Corolla's 1600 engine. Connecting rod bearings are critical for keeping your crankshaft spinning smoothly within the engine block. They sit between the crankshaft and the connecting rod, reducing friction and wear in this high-stress area.

King uses a bimetal construction, which is a common and reliable material for performance and everyday use. This type of bearing offers good wear resistance and thermal conductivity, helping to manage the heat generated during operation. The 'AM1.25' in the part number indicates these bearings are 0.040 inches (1.25mm) undersize, which is important if your crankshaft journals have been machined during an engine rebuild.

When you're rebuilding the top end of your engine, ensuring you have the right bearings is key. These are designed to fit your Corolla's specific engine configuration, making them a straightforward replacement part for your rebuild project.