In need of an education..340 vs 360.

""A 360 with the same compression ratio and cylinder heads, cam, manifold etc will ALWAYS make more torque and horsepower than a 340. Don't believe me, Mopar rated the '72 340 at 10 hp less than the '74 360. Same compression, same cam specs, carburetor etc. NHRA rates the low compression 340 at less hp than the 360 4bbl. 360 Darts run on a quicker class index than the '72 340's do. ""

Right but the op said he had a 1971 340 , not a 1972 , so higher compression , better cam , crank etc . If he just wants to go out and have fun , not run for money then just freshen up the 340 would be a less expensive option . Does not take much to hit 400 hp with a 340 as is . Unless the shop I had mine built at rigged the dyno or somehow found a block and heads with the same serial numbers to trick me into thinking I had a 340 with 413 hp . All that I had done was put in pistons , Mahle 10.5 replacements , new cam , and the shop worked a bit on the heads , so basically stock . Now if I had to go out and get a 360 to make 400+ how much would I have to spend , and what parts ? Not arguing that you CAN make more with the 360 , hell my 440 made much more , but for just cruising around without spending much and you had the 71 340 what would you do ?