289 better than 302 block for 331 build?

[BlueOval Ralph]

Doesn't hurt bit. We first built 342's, 337's, and 323 in the tail end of 1971
342. 4.060 x 3.30
337. 4.060 x 3.25
323 4.060 x 3.125
Boss 302 blocks are notched on the bottom of climbers for rod bolt clearance
Even built a 356 in 1972 4.080 x 3.40 had a 5.20 rod had to machine the bottom of crank throws flat to keep pistons from hitting the throws a real pain to internal balance Mallory in end two counter weights.

Originally Posted by partsbob67

they might be stronger, but the cylinders are a little shorter on the bottom.