360 Magnum vs 340 mild street build - my experience
I'd love to see a 340 with Magnum heads and LA heads ported to the flow numbers of a magnum head throw it on the dyno ... ( Dyno them both on the 340) Magnum 360 never cam with 10.5 to 1 compression pistons that the 340 did ..my bet with equal flowing heads of the magnum 360 the 340 higher compression would be a leg up on 360 Magnum ( this being that you left the 360 Magnum piston stock ) only giving the 340 had equal flowing heads as the 360 . My guess is they would be super close... I am coming at this from a performance perspective and not cost... 360 obviously wins the cost argument given the cost of 340 is currently :( of course there's the argument for potential power... 360 vs 340 bore diameter 340 has the largest bore of Mopar small blocks there will arguments for Valve shrouding in smaller diameter bores especially when adding 2.08 valves or larger on a cylinder head how much does valve shrouding come into play with a 2.08 or larger valves .... No idea but it's worth a Dyno run and adding a stroker kit to 340 vs 360 ... Would the 340 block have more potential?? I say certainly possible given what kits are available for 340 vs 360 blocks . The 340 will always more cubic inches in a stroker situation