Hot Rod Magazine

SCAT Crankshafts has been featured in the May issue of Hot Rod Magazine!


The Fix: Short-Block
A piston change meant boring the already 0.030-inch over block another 0.010-inch (0.040-over an original 360’s 4.0-inch bore size). On his own, Ferguson decided since the engine needed pistons anyway, why not step up to a 4-inch Scat cast stroker crank for 410.2 cubes? With less than 2,000 miles on the previous build, Brandes could even reuse the existing, undamaged main and rod bearings.

004 scat small block chrysler 4 inch cast crank004 scat small block chrysler 4 inch cast crank

Scat’s affordable cast 4-inch stroke crank plus a 4.040-inch bore yields 410.2 ci—plus massive torque potential. The crank can be neutral-balanced (it may take some Mallory), but Brandes elected to balance it for the stock unbalanced harmonic damper and torque converter.

 

Stroker crank in hand, Brandes selected a matching piston. He went with a UEM KB Pistons hypereutectic step-dish KB416 profile. “The step-dish gives you essentially a quench area on the open-chamber Magnum cylinder head,” he explains. “It forces the air/fuel charge toward the valve and spark plug. This generates mixture motion and speeds up the burn. It made up for the fact the piston was still 0.050-inch down in the hole. The static compression ratio went up to 9.4:1.”

*Featured photo from Hot Rod Magazine