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CHAMPIONSHIP ENGINE COMPONENTS<br />
MADE IN THE USA<br />
SHORT BLOCKS TOP KITS BLOCKS HEADS MANIFOLDS CRANKSHAFT ACCESS SBC LS BBC SBF HON COATINGS BILLET<br />
QUICK INFO >>><br />
Designed from a clean slate approach the LS Next Iron<br />
block has addressed the shortcomings of the LS platform<br />
and is the ideal candidate for hot rodders, drag racers,<br />
circle track competitors, off-roaders, and high performance<br />
marine enthusiasts.<br />
By utilizing conventional style main caps and oil<br />
pans with LS rotating assemblies and related components,<br />
<strong>Dart</strong> has addressed the windage and oil<br />
control problems which result from the factory LS<br />
engine’s separated crankcase bays.<br />
FEATURES<br />
• Priority main oiling system with two lifter crossovers and restrictor provisions.<br />
• Siamesed cylinder bores with extra thick walls.<br />
• Cylinder barrels extended .375” at the bottom.<br />
• Extra thick decks ensure reliable head gasket seal.<br />
• Blind head bolt holes available in 7/16" or 1/2".<br />
• Scalloped water jackets increase flow around cylinders for better cooling.<br />
• Clearance for 4.100” stroke w/ steel rods.<br />
• MUST BE clearanced for fully counterweighted crankshafts.<br />
• Splayed outer bolts on middle main bearing caps.<br />
• LS style motor mounts.<br />
• Provisions for OE stock roller lifters and cam.<br />
• Uses stock timing covers and stock rear cover.<br />
• All OE bolt holes for starter, water pump, etc.<br />
• Driver or passenger side starter mounts.<br />
• Parts kit sold separately (PN: 32000016 - see page 118).<br />
LS NEXT OIL PAN RAIL SPACERS<br />
PART NO. DESCRIPTION<br />
62230001 LS Next Oil Pan Rail Spacers w/ power<br />
steering, AC & oil dipstick provision.<br />
LS NEXT - GEN III - IRON (RACE BLOCK)<br />
GEN III<br />
CAST IRON BLOCKS<br />
PART NO. DESCRIPTION REAR SEAL CAPS MAINS DECK BORE<br />
31837111 LS Next Iron STD Steel STD 9.240” 4.000”<br />
31837211 LS Next Iron STD Steel STD 9.240” 4.125”<br />
31837121 LS Next Iron STD Steel STD 9.450” 4.000”<br />
31837221 LS Next Iron STD Steel STD 9.450” 4.125”<br />
LS NEXT (RACE BLOCK) SPECS<br />
Material:<br />
Deck Height:<br />
Cylinder Bores:<br />
Main Bearings:<br />
Main Caps:<br />
Cam Location:<br />
Lifter Bores:<br />
Freeze Plugs:<br />
Rear Seal:<br />
Weight:<br />
High Nickel 220 BHN<br />
Cast Iron<br />
9.240” (stock)<br />
up to 9.450”<br />
4.000” up to<br />
4.200” (max)<br />
Stock LS<br />
Steel<br />
4-bolt 1-5<br />
Stock<br />
Stock .842” dia.<br />
Press fit<br />
Stock LS<br />
227 lbs.<br />
Not intended for sale or use with pollution controlled vehicles.<br />
52<br />
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