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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 />
<strong>Dart</strong>’s SHP (Special High Performance) 23°<br />
180cc cylinder heads provide an affordable option<br />
to those looking for the weight savings of<br />
an Aluminum head for a street performance engine.<br />
The SHP is designed to work with most off<br />
the shelf components.<br />
The SHP head’s precision cast ports are designed<br />
to offer excellent flow and power<br />
without the need for CNC porting. Optimized<br />
chambers increase combustion efficiency, and<br />
multi-angle intake seats and radiused exhaust<br />
seats dramatically increase performance.<br />
Manganese Bronze valve guides increase the<br />
life of the head.<br />
Heads are sold individually.<br />
SHP 23° 180cc - ALUMINUM<br />
23°<br />
180cc<br />
QUICK INFO >>><br />
Excellent street, strip, oval track, truck or marine performance<br />
upgrade. Maximum torque and throttle response<br />
from idle to 6,000 RPM. Best for 327-400 cubic inch engines.<br />
Works with most standard components.<br />
64cc COMBUSTION CHAMBERS<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
127111 Bare Head<br />
127121 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”<br />
127122 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”<br />
72cc COMBUSTION CHAMBERS<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
127211 Bare Head<br />
127221 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”<br />
127222 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”<br />
SMALL BLOCK CHEVY<br />
CAST ALUMINUM CYLINDER HEADS<br />
SHP TOP END KITS<br />
ALSO AVAILABLE<br />
• Fully assembled SHP cylinder heads<br />
• Chromed steel valve covers<br />
• Intake manifold<br />
• Gaskets<br />
• Spark plugs<br />
• ARP head bolts<br />
See page 13 for information.<br />
Head parts kit - see page 118.<br />
Uses 3/8” screw-in rocker studs.<br />
7/16” upgrade available.<br />
RECOMMENDED MANIFOLD<br />
42811000 SHP Dual Plane<br />
SHP 23° 180cc SPECS<br />
Material:<br />
RMR Cast<br />
Aluminum Alloy<br />
Valve Angle: 23° (stock)<br />
Intake Port Volume: 180cc<br />
Intake Valve: 2.020”<br />
Exhaust Valve: 1.600”<br />
Chamber Volume: 64 or 72cc<br />
Plug Type:<br />
Straight<br />
FLOW DATA @ 28” WATER<br />
LIFT INTAKE EXHAUST<br />
.200” 127 103<br />
.300” 175 143<br />
.400” 217 170<br />
.500” 248 186<br />
.600” 250 195<br />
Not intended for sale or use with pollution controlled vehicles.<br />
30<br />
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