I don't want to steer away from the 235 question,but.

The 261 did come out in 1954.The 1954-1955 first series 261 didn't have full flow oil filter.The 261 was produced from 1954-1962 and the left over 1962 engines were installed in the 1963 4x4 trucks.

Smel,I gave $200 for my complete 1954 261 that had two pistons stuck.

1951 3100 Chevrolet
1951 Chevrolet Suburban Carryall
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