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69 roadrunner project......street strip build......want a bb what's the best stroke a 400I or 440....I have 3 440's now so leaning on stroking 1 of them, but have options and need ppionions
I used the 493 kit works great, there are several and possibly endless options check out 440source's info page to fill your knowledge. If I were to do another one I think I would do the 512. Some mods are needed like the oil boss etc but you can get as fancy as you want. I did not buy my kit from here but they have come down in price a bit. I have the eagle crank, diamond pistons, h-bean rods, all ARP bolts total seal file fit rings, big piston pins. good luck keeps us informed.
I would use a 440 block you already have and build a 505 or 512. I like the 7.1 rod ratio kit with .990 wrist pins and BBC rod journals. In the process of building a 440/512. Much like Bigmanjbmopar I used a Eagle crank, 7.1 Eagle H-beam rods, and SRP pistons. Should be a torque monster in my stock appearing 66' Satellite. I will be assembling mine shortly with a dyno pull afterwards. Good luck on your build and keep us informed.