Utah doesn't mean your original pump. He means a short shaft pump designed for this situation. The original won't work in the 261 block as the block requires a pump that is designed differently. In the 235 and 261 block the impeller of the pump protrudes into the block. In the 216 pump, the impeller is inside the pump body.

An alternative is to use your original 216 pump with an adaptor plate designed by one of the members of this forum. I have never done this myself but it has several advantages to the short shaft pump placement. Search this site and perhaps someone with details will chime in.

Also, note that the pulley on your 216 pump is for a 5/8" belt; the 261 and accessories use a 3/8" belt. You need to go one way or another in your build.

Kent

Last edited by Lightholder's Dad; 06/07/2025 4:22 PM.

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