Thanks, for getting me sucked back into these ridiculous arguments. I've listed and done the easy and cheap parts and combination to make a 318 run with a 340 or 360 soooo many times. You can get a free 360 intake manifold for shipping. You can get 360 heads, clean and magged for cheap, $150 a pair + shipping. Right in the classified section of For A Bodies Only. Get pistons for about 9:1 compression with 72cc chambers, just like a 72-73 340. Do your standard machine work for any V8 rebuild and add torque plate hone and balancing. Get a cam, lifters, springs, double roller timing set in the .450 to .500 lift and 210 to 220 intake duration @ .050. Add a curved distributor, a windage tray, and a good used 318/340/360 TQ carb. Any 318 can run with a 340 or 360. 22 cubic inches less is too small, what a joke.