Big Block Mopar Speedmaster Cylinder Heads 440 Heads
Mopar Big Block B and RB Heads Differences Explained 361, 383, 413, 426 Wedge, 426 Hemi and 440. In this video, I take a dive into the Speedmaster Big Block Mopar Cylinder Heads, a budget-friendly option for your engine builds. Cylinder Head, PowerPort® 240, CNC Street Ported, Assembled, 1.550" Dual Springs, Big Chrysler, Mopar, Each As masters of the Mopar engine, Freiburger and Dulcich know how to exact the most horsepower and torque from stock Mopar 440 MOPAR with aluminum heads/ Makes over 500 HP - YouTube ...