What are the torque specs for a '61 261 manifold?

My '48 shop manual for the 216 says center bolts=15-20 ft-lb and end bolts=25-30.

A previous post here for a 230 said center=25-30 and end=15-25. Is this backwards?

(I know, I know....I need a 261 shop manual.)


1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.