World Products is excited to release their new lightweight small-block Chevy block. This block weighs much less than typical aftermarket blocks, while retaining the utmost in strength and reliability.

Official Release:

World Products has introduced a new light-weight cast iron small-block for racing and performance applications. Weighing in at a nominal 178 pounds, the Motown Pro Light-Weight is cast from a special 40,000 psi iron alloy for increased strength, yet weighs significantly less than typical aftermarket blocks.

The new block is available with either a standard SBC cam journals and lifter bores, or with a BBC cam journals and .904-inch lifter bores that can provide enhanced valvetrain stability and performance. The oiling system has been revised to accommodate the .904-inch lifter upgrade, without the added cost of needing bronze lifter bushings. Oil passages have been enlarged, and provisions for oil restrictors are built into the valley, further enhancing the high-rpm potential by providing improved oil supply and control. Ductile-iron main caps are fitted with four-bolt splayed caps on journals number 2, 3 and 4, and two-bolt caps for numbers 1 and 5, which allows easy oil pan fitment. The main caps are secured by high strength 7/16-inch ARP bolts for maximum stability.

There is a enough clearance for a 4.000-inch stroke crankshaft, and corresponding connecting rods. The Siamese cylinder bores come in either 3.995 or 4.120 inches, (to finish at 4.000 or 4.125 inches) with a maximum available bore of 4.185 inches to allow for big cubic-inch displacements. World’s new Motown Pro Light-Weight block offers tremendous performance potential in a new lightweight package that will appeal to both circle track and drag racers.

Features:

• Weighs only 178 pounds
• Cast from a special 40,000 psi iron alloy for increased strength
• Revised priority main oiling system