I built a 500 Caddy for my 51 Ford pickup. I must warn you that it can get VERY expensive. For example, my pushrods cost $159, timing chain $83, cams will be $185 to $275. What I'm saying is if you just need a good reliable engine with loads of torque you can't beat Cadillac 500. Keep it mild, all you need is a stock rebuild, maybe an aluminum intake, ignition upgrade, headers and you'll love the power you got for the Lincoln.