World Products has redesigned their innovative small-block Chevrolet
which allows the use of high flowing LS-style cylinder heads with readily available and affordable SBC rotating assemblies and related components.
The new World Products Motown LS small-block Chevy engine features a camshaft location which has been raised in the block by 0.134in. The block now comes standard with a 55mm cam tunnel and cam cores are now readily available from Erson Cams at an affordable cost for this application. The Motown LS promotes the use of a 4.000in stroke crankshaft, and the large cam core provides for exceptional valve train stability at high RPM operation. Bushed lifter bores are standard with a choice of 0.842in or upgraded 0.904in diameter.
Standard type SBC timing covers as well as standard SBC oil pan and pump fitments are used, as are standard distributor ignition systems. These features accommodate off-the-shelf SBC parts, avoiding the need for numerous expensive specialty components typically associated with LS designs.
World’s priority-mains oiling system ensures reliable lubrication of the main bearings, and the SBC sump and oil pan eliminate the issues associated with high RPM oiling in the LS engine. The Motown LS is the best of both worlds!
A standard LS 9.240in deck height means standard LS intake manifolds can be used. The standard 4.120in bore finishes at 4.125in and 350 mains are available with a choice of ductile iron or billet steel splayed 4-bolt main caps. High quality ARP fasteners are used for superior strength and integrity.
Part numbers for the Motown LS blocks are:
084080 Motown LS, 3.995″ Bore, 55mm Cam, .842″ Lifters, Nodular caps
084080-904 Motown LS, 3.995″ Bore, 55mm Cam, .904″ Lifters, Nodular caps
084180 Motown LS, 3.995″ Bore, 55mm Cam, .842″ Lifters, Billet caps
084180-904 Motown LS, 3.995″ Bore, 55mm Cam, .904″ Lifters, Billet caps
084081 Motown LS, 4.120″ Bore, 55mm Cam, .842″ Lifters, Nodular caps
084081-904 Motown LS, 4.120″ Bore, 55mm Cam, .904″ Lifters, Nodular caps
084181 Motown LS, 4.120″ Bore, 55mm Cam, .842″ Lifters, Billet caps
084181-904 Motown LS, 4.120″ Bore, 55mm Cam, .904″ Lifters, Billet caps
In common with all of World Products’ blocks and heads, the Motown II RC is 100% American made. World blocks are cast from high-strength iron alloys and are precision-machined on CNC machining centers for unmatched accuracy. World’s new digital inspection equipment and quality verification procedures ensure dimensional accuracy, which means you can be assured of total quality and superior performance.
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