Rick is right, use the Canton 15-620S ( I have one). It is deeper for the strokers (331-347) in the center. Clearance is not an issue. Just make sure you add two more quarts oil, it's a 7-qt pan. As a suggestion, I would use a rubber gasket like Felpro, SCE (what I use) they are one piece and satisfy the rubber area under the timing chain cover which is usually the spot where the oil pan leaks. I will tell you this, get a high volume oil pump. I did about three months of research and have found that 347's have oiling problems at the piston due to the 3.4" stroke (that's why I went 331). If you are just going to use it for racing or drive every once in a while it's okay, but if you are using it as daily driver, you might want to find another ride. I talked to Ford Racing, senn some articles in 5.0 and Muscle Mustangs, Popular Hot Rodding, internet articles, etc., and they all basically said the same thing. Get some forged pistons with good oiling characteristics, like Probe, JE Sportsman, Keith Black, and Ross Racing, just to name a few. Don't want you to blow up your motor. If you have a few grand in yours the things i mentioned should keep the torque monster running for a long time.
