Connect with us

Hi, what are you looking for?


New Motown Pro Light-Weight SBC Block from World Products

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

The new block is available with either a standard SBC cam journal and lifters, or with a BBC cam journal and .904″ lifter bores to provide enhanced valve train stability and performance. The priority main oiling system has been revised to accommodate the .904″ lifter upgrade without the added cost of bronze lifter bushings. Oil passages have been enlarged and provision for oil restrictors is built into the valley, further enhancing the high rpm potential by providing improved oil supply and control. Ductile iron main caps are fitted with 4-bolt splayed caps on #2, 3 & 4 and 2-bolt caps for #1 & 5 which allow easy oil pan fitment. The main caps are secured by high strength 7/16″ ARP bolts for maximum stability.

Clearance for a 4.000″ stroke crankshaft is machined in, and connecting rods which offer clearance for the BBC cam option with the 4.000″ stroke are available. The siamese cylinder bores come in either 3.995″ or 4.120″, (to finish at 4.000″ or 4.125″) with a maximum bore of 4.185″ to allow for big cubic inch displacement.

World’s new Motown Pro Light-Weight block offers tremendous performance potential in a new lightweight package that will appeal to both circle track racers and drag racers.

Part numbers for the new SBC blocks are:
083010 – 3.995″ Bore, 350 mains, standard SBC cam journal & .842 lifters
083020 – 4.120″ Bore, 350 mains, standard SBC cam journal & .842 lifters
083010-BBC – 3.995″ Bore, 350 mains, BBC cam journal & .904 lifters
083020-BBC – 4.120″ Bore, 350 mains, BBC cam journal & .904 lifters

World Products blocks and heads are 100% American made and are subject to stringent quality assurance procedures to ensure superior quality and performance.

For more information, contact World Products, 877-630-6651, or

This story was originally published on March 22, 2016. Drag Illustrated

Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *


You May Also Like


The star-studded STREET OUTLAWS: No Prep Kings series is set to return for its 6th season in the summer of 2023. Fans can expect to...


Street Outlaws: No Prep Kings star and renowned engine builder Pat Musi joined the recent episode of The Wes Buck Show and provided an update...


Street Outlaws: No Prep Kings star Lizzy Musi announced today that she has been diagnosed with stage four breast cancer via her Youtube channel....


Ryan Fellows, who starred in “Street Outlaws: Fastest in America,” died in a tragic crash while filming for the show in Las Vegas on...

Since 2005, DI has informed, inspired and educated drag racers from every walk of the racing life - weekend warrior and street/strip enthusiasts to pro-level doorslammer and Top Fuel racers. From award-winning writing and photography to binge-worthy videos to electric live events, DI meets hundreds of thousands of racers where they live, creating the moments that create conversations.