Be Sure To Use Correct Cup Plugs On 0R2077, 0R2554, And 0R3258 Remanufactured Short Blocks

3304, 3306 Engines

Some Remanufactured 3304 and 3306 short blocks are built with block castings that have two core plug openings on the left side of the block. These openings are sealed with 3S8313 Cup Plugs. Most parts books do not show the location of these plugs. The illustration shows the location of the plugs.

Location of 3S8313 Cup Plugs. (Right Side View Of Cylinder Block) The other 3S8313 Cup Plug is at the same height and on the same side of the block, but approximately the same distance from the other end of the block.

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