Small Blocks

Dan the man said
This will probably raise some eyebrows. If two 1973 duster's were the same weight, had the same size tires and tire pressure, both had 3.23 gears, a 904 transmission with a stock rebuild, stock stall speed converter, one has a 340 the other a 360 but they both are rebuilt to the 340 specifications. Both have the factory 1973 340 exhaust manifolds, factory intake and carb that was available on a 1973 340 duster and 2 1/2" exhaust system, would the 360 out perform the 340?

Probably so. 73 340's ran pretty good but they were pretty anemic compared to the 68 and newer ones. 73 was the last year for the 340 and everything got a 318 or 360 from there. The 360's were built like the 340's of that era. Heads, cams, manifolds, etc were interchangeable. The 360 would perform a little better because of the extra stroke. Look up the torque and HP specs to see.