450 HP 4.6 DOHC

Sean Hyland pioneered the 5 litre version of the modular 4 valve engine in 1998 for road racing, and this engine is the latest iteration of that concept. Utilizing an aluminum block, thin wall cast iron sleeves are installed, increasing the bore to 3.70 inches (94mm). Forged pistons of 10.5-1 compression and forged steel connecting rods are added to the forged steel crankshaft. FR500 cylinder heads are ported, fitted with oversize stainless valves and high lift billet steel camshafts. A magnesium FR500 intake manifold with variable length intake runners sits on top of this engine, completing the stunning visual presentation.

SHM4V450 $14,695