The unique MOTOWN LS block lets you utilize a full complement of standard small block Chevrolet components with the decided advantage of being able to employ high flowing LS style cylinder heads and manifolds. In addition to the internal components, the MOTOWN LS allows use of expensive, already-purchased items like pulley kits and external accessories. The block also boasts a coolant capacity in excess of 150 fluid ounces per cylinder bank to provide superior cooling.

GET IT PREPPED!
For the enthusiast who is planning to assemble an engine in their home garage, getting the block in a RACE-PREPPED state is a no-brainer. Our experienced staff performs important basic operations like:
• Deck milling +/- .0025”
• Main journal honing +/- .0004”
• Cylinder bore plate honing .001” oversized +/- .0005”
• Lifter bore honing +/- .0005”
• Block hot tanking
• Cam bearing installation
• Freeze plug installation
• Dowel pin and pipe plug installation
• Block deburring
• Machined surfaces sprayed with rust inhibitor
• Protective wrapping
More and more professional engine builders are also recognizing the benefits of ordering race-prepped blocks instead of endeavoring to perform these many tasks themselves. Many have realized that their time can be better spent doing critical assembly work such as degreeing in camshafts and setting up the valve train. By employing race-prepped World blocks the shop’s through-put can be accelerated, and there are demonstrated savings in terms of personnel, shop equipment, space and cash flow.

Whether you're an enthusiast or engine builder, save time and money!

Please Note: Motown LS blocks require the purchase of a mandatory block kit (includes valley adapter casting, valley cover plate, cylinder head adapter plates, screws and o-rings).

CUSTOM CAMSHAFTS
Custom camshaft grinds are currently being offered by the following companies:
Comp Cams, (800) 999-0853
Predator Cams, (570) 339-5913

Material: High density cast iron
Deck Height: 9.240" (standard LS1)
Deck Thickness: .600" minimum
Cam Bearings: Std Chevrolet small block set
• Can be machined for 55 mil.
Main Bearings: Std Chevrolet (400 style)
Camshaft Location: Stock
Lifter Bores: Indexed (stock .8437" bore)
Bore: 4.115" (hone to 4.125")
Maximum Bore: 4.200" DO NOT EXCEED
Cylinder Wall Thickness: (.250" @ 4.200" bore)
Water Jackets: Expanded for better cooling
Lubrication: Priority main oiling system
Oil System Features: Integral boss for front feed, boss for rear scavenge rear main cap has provisions for wet sump pump
Filtration: Integral mount for spin-on filter
Oil Pan Rails: Solid (stock width) can be clearanced for strokers
Crank Clearance: 4.000" stroke (H-beam steel rods)
Main Caps: Nodular iron 4-bolt (1/2") w/dowels or splayed billet
Fuel Pump: OEM mount
Starter: OEM mount
Motor Mounts: Dual (front and side)
Cylinder Head Holes: Blind tapped to prevent leaks
Weight: Approximately 190 lbs.