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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 />
Street performance, restricted oval track, and marine<br />
performance upgrade. Mid-range to 6,500 RPM. Best<br />
for 383-434 cubic inch engines.<br />
Iron Eagle 23° 230cc Platinum heads are intended<br />
for maximum effort competition engines with<br />
large displacements and very high RPM usage.<br />
Long wearing Bronze valve guides, screw-in<br />
studs, multi-angle intake seats with hardened<br />
and radiused exhaust seats are standard. Best of<br />
all, our precision cast ports produce outstanding<br />
airflow without time consuming porting.<br />
Assemblies include Stainless Steel valves, premium<br />
springs, locks, retainers, studs, guide plates<br />
and seals.<br />
Heads are sold individually.<br />
IRON EAGLE 23° 230cc (Straight Plug Heads)<br />
64cc COMBUSTION CHAMBERS<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
10720040P Bare Head<br />
10721143P 1.550” Dual Springs for Solid Roller Cam .700”<br />
72cc COMBUSTION CHAMBERS<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
10820040P Bare Head<br />
10821143P 1.550” Dual Springs for Solid Roller Cam .700”<br />
IRON EAGLE 23° 230cc (Angle Plug Heads)<br />
23°<br />
230cc<br />
49cc COMBUSTION CHAMBERS<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
10710040PF Bare Head<br />
64cc COMBUSTION CHAMBERS<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
10710040P Bare Head<br />
10711143P 1.550” Dual Springs for Solid Roller Cam .700”<br />
72cc COMBUSTION CHAMBERS<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
10810040P Bare Head<br />
10811143P 1.550” Dual Springs for Solid Roller Cam .700”<br />
SMALL BLOCK CHEVY<br />
CAST IRON CYLINDER HEADS<br />
Head parts kit - see page 118.<br />
Uses 3/8” screw-in rocker studs.<br />
7/16” upgrade available.<br />
Heads with 49cc chambers require<br />
special pistons.<br />
Assemblies with 1.550” valve spring<br />
use +.100” long valves.<br />
RECOMMENDED MANIFOLDS<br />
42411000 Single Plane<br />
42421000 Single Plane (4500)<br />
IRON EAGLE 23° 230cc SPECS<br />
Material: High Nickel 220<br />
BHN Cast Iron<br />
Valve Angle:<br />
23° (stock)<br />
Intake Port Volume: 230cc<br />
Intake Valve: 2.080”<br />
Exhaust Valve: 1.600”<br />
Chamber Volume: 49, 64, 72cc<br />
Plug Types:<br />
Straight or angle<br />
FLOW DATA @ 28” WATER<br />
LIFT INTAKE EXHAUST<br />
.200” 129 115<br />
.300” 184 158<br />
.400” 231 185<br />
.500” 271 199<br />
.600” 296 205<br />
.700” 308 207<br />
Not intended for sale or use with pollution controlled vehicles.<br />
28<br />
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