RHS Bare Block Engine 4.120" Bore 9.250 Deck Standard Main - 6-Bolt Mains H760C30M Single 2-5/8" tall 8 micron

Single 2-5/8" tall 8 micron fuel element for 4" and Marine fuel filters

Swivel Water Neck - Chevrolet

Magnafuel 2 Port Regulators

Colored/tinted shields are not included

Redesigned cheek pads are more contoured and comfortable than previous ST4 helmets

RHS Bare Block Engine 4.120" Bore 9.250 Deck Standard Main - 6-Bolt Mains H760C30M Single 2-5/8" tall 8 micronThis block has a 9. 240 deck height with a 4. 125 bore and a 5. 87 cylinder sleeve length. Cylinder walls are Siamese cast with press in cast iron sleeves. 12AN feeds for dry sumps. Aircraft quality A357 T6 aluminum. 6 Head Bolt Design. In recent years, LS engine technology has revolutionized the GM performance aftermarket. Gen IV engines have set a new standard for factory horsepower and torque. To meet the growing demand of today's high performance