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SB Chevy Cast Iron w/ LS Heads
Cast Iron Small Block Chevy Block, Accepts LS Series Heads
The unique World Products Motown LS SBC block lets you utilize a full compliment of standard small block Chevy components with the decided advantage of being able to employ high flowing LS-type cylinder heads. In addition to the internal components, the World Products Motown LS allows use of expensive already-purchased Small Block Chevy items like pulley kits and external accessories. The block also boasts a coolant capacity in excess of 150 fluid ounces to provide superior cooling.
THE WORLD PRODUCTS MOTOWN LS IS A UNIQUE ONE-OF-A-KIND BLOCK MADE ONLY BY WORLD PRODUCTS!
Note: When using LS-style heads on the Motown LS you must use an adapter on the heads to facilitate a return flow to the radiator. The World Products Cooling Adapter also accommodates standard SBC accessory brackets.
The latest design World Products Motown LS small block Chevy Hybrid engine block features a camshaft location which has been raised in the block by +.134". 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. This design allows the use of both I-beam and H-beam connecting rods with a 4" stroke crankshaft, and the large diameter cam core provides for exceptional valve train stability at high RPM operation. Bushed lifter bores are standard with a choice of .842" or .904" inner diameters. The Motown LS can be built with a carburetor or EFI induction. Deck height is a standard LS 9.240". The special cylinder head and intake manifold adapter allows the use of a std distributor as a small block Chevy.
Technical Information:
- Material: High density cast iron
- Deck Height: 9.240" Stock LS deck height
- Deck Thickness: .600" Minimum
- Cam Bearings: 55mm babbit cam bearing bore
- Cam Location: Raised +.134"
- Lifter Bores: Indexed .842"/.904"
- Main Bearings: Std Chevrolet (350 style)
- Bore Spacing: 4.400"
- Bore: 3.995" or 4.120
- Maximum Bore: 4.200”
- Cylinder Wall Thickness: .250” at 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 can accept wet sump pump
- Dip Stick: Driver Side
- Filter: Integral mount for spin-on filter
- Oil Pan Rails: Solid (stock width) clearanced for 4.000" stroke
- Crank Clearance: 4.000" Stroke (H-beam rods)
- Main Caps: Nodular or Billet steel splayed 4-bolt caps (2, 3,4) and straight 4-bolt caps (1, 5)
- Main Cap Hardware: ARP and ring dowels used in addition to std OEM registers to locate main caps firmly into position
- Main Cap Locators: Stock and ring dowels at the center studs
- Rear Main Seal: Two piece SB Chevy
- Fuel Pump: Stock location SB Chevy
- Motor Mounts: SBC motor mounts
- Cylinder Head Bolt Holes: Blind tapped to prevent water leaks
- Clutch Linkage: Standard mounts
- Starter Mount: Stock location
- Weight: Approximately 200lbs.
ACCESSORIES FOR THE MOTOWN LS BLOCK:
- 703844 Valley plate for carburetor intake manifolds
- 703844-I Valley plate for LS EFI intake manifolds
- 703848-K Cylinder head end plates
- 703849-K Water return kit - Pro-Lok hose
- 703850-K Water return kit - Braided steel hose
- 705017 Cylinder head stud kit
- 8981TRC Billet timing chain
- 8981TARC Billet timing chain (adjustable)
- DURGMP55 Cam bearing set (babbit)