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Auto Repair > Engine Repair N' Installation Guide > Oldsmobile > 442 > OVERSIZE VALVE LIFTERS AND GUIDESContact Us | Track Your Order 
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Oldsmobile 442 Engine >> OVERSIZE VALVE LIFTERS AND GUIDES
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Oversize Valve Lifters & Guides On
Some GM (Olds) 5.7L (350 CID) Diesel Engines

Some GM (Oldsmobile) built 5.7L (350 CID) diesel engines may be equipped with one or more oversize lifters and oversize valve guides.

If there is an 0 cast into the side of the lifter boss as shown in the diagram below, that lifter is oversize. Oversize lifters are .010 larger than standard diameter lifters.

To determine an oversize valve guide, check for the number stamped into the cylinder head just above the intake gasket surface. The valve next to the stamped number is oversize. The number indicates the size of the guide. For example, a 13 indicates a .013 oversize guide.

The AERA Technical Committee

Looking for replacement Oldsmobile 442 engines? Visit our online Rebuilt Engines Store. Need to fix your Oldsmobile 442 engine? Access here the comprehensive online repair guide for your Oldsmobile 442 engine. Click Here to find a used Oldsmobile 442 engine.
 
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