[1] It also had equally spaced intake ports (similar to the 428SCJ), thereby achieving "more consistent mixture distribution" than the Wedges.
[6] Compared to the wedge, the ball-stud block had two additional clean-out holes to remove casting sand, because the large bore made coolant in the water jacket very significant,[6] and an additional oil drainback hole at either end of the block, due to demand for lubrication of the rocker arms.
[4] In testing, it proved able to outperform the single four-barrel carburetted A134 440, and lagged behind the eight-barrel A102 426 Street Hemi.
[4] It was a victim of increasing demand for emissions controls and a reduction in emphasis on performance, as the "horsepower wars" wound down.
[4] Moreover, Chrysler was suffering "severe financial stresses" that nearly brought the company down,[8] so the new production tooling and facilities were now uneconomic.