This isn’t your old-man’s crate engine. This D.S.S. 427X short-block features D.S.S. Racing Forged GSX pistons; severe-duty ductile-iron rings; a 4340 forged-steel crank and 4340 H-beam rods with 7⁄16-inch ARP 2000 rod bolts; ARP main studs; and a D.S.S. Racing billet-aluminum Main Support System for strength and durability that will support well beyond 1,000 hp. High-horsepower applications like this one benefit from the harmonic-dampening qualities of the company’s aluminum main support system, which controls main-cap walk. Unlike a production block where main cap walk means a split block, aftermarket blocks do not fail in this manner, but they pound the main cap register out of the block leaving the cap free to move about. This movement also allows crank deflection drastically effecting crank and bearing life. For the camshaft, Rick mapped out a custom grind from Bell Redline Motorsports and D.S.S. degreed in the cam utilizing a Cloyes nine-position Street Billet timing chain.