1976 401 specs

 Anyone know the  71 thru 76 401 specs.

So a better aftermarket intake, carb, headers, and cam is all it needs? Thanks, any recomendations for a street machine?

As Ken mentioned. What are you looking for precisely? For me, the fun street engine is just getting started when it begins topping the 500HP mark while someone else may get their jollies with 350-400HP. Want something that will roast the tires and be fun or something that will scare the stinky brown material out of anyone crazy enough to sit in the right seat? You could take the stock 401, freshen up the bottom with bearings, hone the bore and replace the rings, put a mid range cam that makes power in the 2000-5000 RPM range, run an air gap or performer intake with some roller tip summit rockers and hydraulic lifters, shave the heads .010-.020, deck the block to square it up, shoot for about 10-10.5 static compression topped off with a nice 750 carb and headers and easily be making a touch over 400HP. Since the 401 uses forged crank and rods stock you could easily add a 250 shot of NOS for some track day fun. If money is not object and race fuel is what you want to run then you could of course up the game even further. Anything from supercharger to extremely large NOS multi-stage setup. Mind numbing frame bending power is possible but cost becomes the biggest issue. Set your budget and then get the biggest bang for the buck. If you are on a tight budget I would do a cost effective build and then just bolt on the bottle throttle. The 401 could easily make 600+ HP on the stock parts with a forged piston and 250 shot NOS plate.

If the 401 is something that you are looking at getting then I would certainly check to ensure the bore is still standard. That way if you need to bore it you can.