340 Vs 360

The 360 heads came with 1.88" intake valves, You can have a machinist open them up to 2.02" intake valves for the 360 and they will run better.

The 340 had forged crank from 68 - 72.
73 is the only year for the cast crank 360.

All 360's had cast cranks.

340's had forged rods and cast pistons.
340's had 10.5:1 compression from 68-71

360's were typically around 8:1 compression.


Take a 360, and bump the compression to 9.0 - 9.5 and put 2.02" intake valves on it and let her rip. It will run as good as a 340 for less money. 360's run great when you use the "hi-po" 340 parts in them.