IMCA Modified Crate Killer

[Rogue1]

Looking for recommendations on what motor to build for a "crate killer" type of motor, big cube?, small cube?, we're looking for 500ish hp with a flat torque curve, and will be running on gas

[stock car driver]

406 got me exactly what you want, but I haven't ever heard of or seen anyone else build a 406 or post dyno runs compared to a crate where the killer wasn't peaky.. been a few from different builders on the same chassis dyno I use and nothing close to flat tq curve yet.

http://i642.photobucket.com/albums/uu150/jnjfab/Mobile%20Uploads/F3B5E106-9AB6-49B0-8A9A-9A6C96E89D1F_zpsvdjgp1np.jpg (http://s642.photobucket.com/user/jnjfab/media/Mobile%20Uploads/F3B5E106-9AB6-49B0-8A9A-9A6C96E89D1F_zpsvdjgp1np.jpg.html)

http://i642.photobucket.com/albums/uu150/jnjfab/parts%20for%20sale/0A7AC335-6873-4DE5-ABBD-1C70A2C8F999_zpsbrmaf7j3.jpg (http://s642.photobucket.com/user/jnjfab/media/parts%20for%20sale/0A7AC335-6873-4DE5-ABBD-1C70A2C8F999_zpsbrmaf7j3.jpg.html)

Mines for sale, I sold out in the spring and have this motor and two totes of small parts mostly new left is all.