349 CI on the cheap
Moper,
But like Adam said they make a crank for the 318/340 with the 360 stroke, and now your not grinding the crank and weakening it. Also if you dont cut the block the piston will only be out of the block .033, a stock 340 HP was out .018, I personally dont think that .015 more out of the block is really going to hurt the ring location or have any problems.The amount that I cut my block was to clean it up, the next guys block may not need this much. Also you don't have to cut the heads anymore than you want to, I was just useing this amount to get the quench where I wanted it. This doesnt mean that it has to be done to make it run. And actually the compression will be down enough for pump gas at this point. And obviously if you dont run this large of a cam and carb the power won't be there either, but I still think that 500 HP and 450 ft lbs of tq and be streetable out of a 318 which really isn't a 318 anymore would be pretty neat. And you don't have to search for 340/360 engines. It really isn't any different than putting a 4" crank in a 360 block, except for the rod angles are better and the side loading wont be there, so longevity and the price of aftermarket pistons and other parts arent warranted. Which to me makes this a better engine for less $$$$ with more than reasonable results.
Most engines running pump gas aren't going to be raced every weekend, but would go to car shows and maybe a race or two, or just for cruisin around on the weekends. This is just something to burn the tires up and sound great for the do it your selfer. Even if they spend $2,500.00 or $3,000.00 it still is less than a crate engine that would have to be looked at, and they would have the fun of doing it, and be different than the run of the mill chebby guys.