My version of a factory parts build 318

A High Performance small block is easy. Not sure why everyone wants to make it hard. Ma Mopar gave you the blueprint. 340 is the blueprint, not the Holy Grail. Good factory head castings. As cast 318 heads will flow about 170 cfm, while 360 heads will flow about 190 to 200 cfm. 360/340 heads can be milled to about 65 cc chambers. Pistons to give the compression to work with the available octane. A cam and valve springs to let the heads breath. A good 4 barrel carb and intake to breath. A good distributor with a fast curve and tailored to the max timing at WOT. A double roller timing set, a high pressure oil pump and a windage tray to keep everything together @ 6,000 rpm. This will work on any 273, 318, 340, or a 360.