Let's face it, production big-block cylinder heads aren't getting any younger. In 1978, the last Mopar big-block production engine was built, and that was almost 25 years ago. Moreover, the prized ...
A Heads-Up View Compared to the production pieces, the differences in the intake port are subtle, starting with the more open port bowls of the Stage V. Farther down, the valveguide boss in the intake ...
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