What is the difference between standard size and undersize bearings?

Standard size bearings are meant for crankshafts that are still at their original factory dimensions. If a crankshaft has been worn down and machined (ground) undersize to true it up, you'll need to use bearings that are specifically sized to compensate for that machining, such as 0.010" or 0.020" undersize.

Do these bearings come with assembly lube?

This set includes the main bearings themselves. It is highly recommended to use a quality engine assembly lube on the bearing surfaces and crankshaft journals during installation to ensure proper lubrication upon initial startup.

What other parts are typically replaced during a main bearing job?

When replacing main bearings, it's common practice to also replace the connecting rod bearings (also known as 'rod bearings' or 'big end bearings') and the crankshaft thrust bearing if applicable. Inspecting the crankshaft for straightness and wear is also crucial.

ACL 68-74 Nissan L16E/L18E 1595cc/1770cc 4cyl Standard Size High Performance Main Bearing Set

Specifications

Brand: ACL
Part #: 5M1172H-STD
UPC: 9315726453629

ACL 68-74 Nissan L16E/L18E 1595cc/1770cc 4cyl Standard Size High Performance Main Bearing Set

Name: ACL 68-74 Nissan L16E/L18E 1595cc/1770cc 4cyl Standard Size High Performance Main Bearing Set
Brand: ACL
Price: 186.78 USD
Availability: InStock

$186.78

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Fits 1968-1979 Nissan 510. ACL main bearings for L16E/L18E engines. Standard size, high performance set.

Key Features

Fits 1968-1979 Nissan 510, 1969-1972 Nissan 521 Pickup, 1973 Nissan 610, 1972-1974 Nissan 620 Pickup, and 1974 Nissan 710.
Designed for Nissan L16E and L18E 1595cc and 1770cc 4-cylinder engines.
Standard size bearings are for use with factory-spec or undamaged crankshaft journals.
High-performance design offers improved durability and consistent oil clearance.
ACL is a well-known manufacturer of engine bearings with a long history in motorsports and automotive applications.

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Will this fit your vehicle?

Product Details

ACL has been making engine bearings for decades, and this high-performance main bearing set for your 1968-1979 Nissan 510 is one of their staples. These bearings are designed to handle the demands of the L16E and L18E engines, whether you're rebuilding for daily driving or a more spirited application. They are built to precise specifications, ensuring a solid fit and reliable performance for your engine's crankshaft.

This set is standard size, meaning it's intended for crankshafts that are still within their original factory tolerances. If your crankshaft has been previously machined or ground undersize, you would need a different bearing size. ACL uses well-built materials and manufacturing processes to create bearings that offer improved durability and consistent oil clearance, which is crucial for engine longevity and proper oil pressure.

When rebuilding your Nissan's engine, using a quality main bearing set like this from ACL is a smart choice. It's important to ensure your crankshaft journals are clean and properly prepped before installation, and always refer to the manufacturer's service manual for the correct installation procedures and torque specifications.