IK® Series Cylinder Heads/23°

 

 

 
 

You have spoken and we have listened..these small block Chevy compatible heads offer the only two things that matter… performance and price!
The features for the IK® 180 / 200 include a revolutionary ultra casting, versatile 180 cc or 200 cc intake ports that are specifically designed for optimum versatility, and 64 cc or 70 cc combustion chambers that allow the use of several types of fuels.
The all new 100% CNC ported “Wild Thing™” (BP IK 210) bridges the gap between our Pro Street heads and our complete line of race heads. These heads feature 210 cc intake ports and flow 287 cfm while utilizing all standard components.
Standard features are A-356 virgin aluminum alloy, phosphorous bronze valve guides, valve seats for use with unleaded fuel, ends milled and drilled for accessories, and a straight spark plug angle.
The combustion chambers are available as large as 74 cc. These are the most affordable high quality aluminum cylinder heads on the market.

Package Heads

Facts and Related Components

• PS CB:
Valve Bowls Blended

• PS MI:
Match Intake Port to FP 1204 (IK 180)
Match Intake Port to FP 1206 (IK 200)
Match Intake Port to FP 1205 (BP IK 210)

• PS Valve Job:
Competition Valve Job

• Intake Valves:
2.020 x 4.920 o.a.l. – BR 6170DI (IK 180, IK 200)
2.080 x 4.965 o.a.l. – BR 81019 (BP IK 210)

• Exhaust Valves:
1.600 x 4.920 o.a.l. – BR 6169DI (IK 180, IK 200)
1.600 x 4.965 o.a.l. – BR 81021 (BP IK 210)

• Valve Springs:
1.250 Hydraulic Valve Spring – CC 981,
100 lb Closed, 300 lb Open,
1.850 Installed Height,
.525 Maximum Lift
(IK 180, IK 200)

1.470 Hydraulic Roller Valve Spring – CC 987,
125 lb Closed, 325 lb Open,
1.900 Installed Height,
.575 Maximum Lift
(IK 180, IK 200)

1.550 Flat Tappet Valve Spring – BT 120121,
150 lb Closed, 365 lb Open,
1.950 Installed Height,
.600 Maximum Lift
(BP IK 210)

1.550 Roller Valve Spring – GA 1000,
240 lb Closed, 550 lb Open,
1.950 Installed Height,
.700 Maximum Lift
(BP IK 210)

• Retainers:
1.250 7° Steel – CC 742 (IK 180, IK 200)
1.430 7° Steel – CC 743 (IK 180, IK 200)
1.550 10° Steel – CC 752 (BP IK 210)

• Valve Locks:
7° – PI PF – 555 (IK 180, IK 200)
10° – Jumbo – CC 611 (BP IK 210)

• Rocker Studs:
3/8 – BR 318S (IK 180, IK 200)
7/16 – BR 716L, AR RSS-4I (BP IK 210)

• Guide Plates:
5/16 – CC 4808

• Valve Seals:
11/32 – US VS529V

• Torque Heads:
70 ft-lb

• Torque Rocker Studs:
40-45 ft-lb

• Intake Gaskets:
FEL-PRO 1204, COMETIC C5416 (IK 180)
FEL-PRO 1206, COMETIC C5414 (IK 200)
FEL-PRO 1205 (BP IK 210)

• Head Gaskets:
350 – FEL-PRO 1003, COMETIC C5399
400 – FEL-PRO 1004, COMETIC C5403

• Exhaust Gaskets:
FEL-PRO 1404, COMETIC C5415
(IK 180, IK 200)
FEL-PRO 1406, COMETIC C5415
(BP IK 210)

• Head Bolts:
ARP 134-3601, MANLEY 42313

• Head Bolt Washers:
MANLEY 42102
• Head Studs:
ARP 134-4001 (6pt)

• Accessory Bolt Holes Are Drilled

• Spark Plug Starting Points:
CHAMPION RN12YC or AUTOLITE 3924
for Pump Gas
NGK R5671A-8
for Racing Gas

• Spring Pockets:
May Not be Cut Any Larger
or Deeper Than 1.550

• Valve Angle:
23°

• Angle Milling:
.0078 in per cc

• Flat Milling:
.0060 in per cc

• Angle Machining:
Not Available

• Dowel Shift:
Not Available

• Pushrod Slots:
Standard

• Stud Girdle:
BR 6435

• Rocker Arms:
Standard

• Lifters:
Standard

• Valve Centerline:
Standard

• Intake Manifold:
HP-1 / HV 1016 (IK 180)
HV 1014 / HV 1016 (IK 200, IK 210)

Flow Chart cfm @ 28″ H20

Part Number Valve Size
0.200
0.300
0.400
0.500
0.600
0.650 0.700
IK 180 2.020 Intake 138 188 234 243 245    
1.600 Exhaust 112 149 167 175 178    
IK 200 2.020 Intake 123 181 230 253 261    
1.600 Exhaust 100 145 164 171 176    
BP IK 210
(CNC Ported)
2.080 Intake 148 217 260 278 284 285 287
1.600 Exhaust 110 166 200 214 219 222 224


Basic Easy Order Numbers

Part# Easy
Order #
Port
Vol.
Cham.
Vol.
Int/Ext
Valve
Spring Seat
Pressure
Spring
Diam.
Ret.
ST/TI
Per
IK 180 Bare
1020001 180 70         2
IK 180 Bare
1021002 180 70 2.020 / 1.600 100 1.250 ST 2
IK 180 Pkg
1021003 180 70 2.020 / 1.600 125 1.470 ST 2
IK 180 Pkg
1021004 180 64 2.020 / 1.600 100 1.250 ST 2
IK 180 Pkg
1021005 180 64 2.020 / 1.600 125 1.470 ST 2
IK 180 350 Combo
9991012 180 70 2.020 / 1.600 125 1.470 ST 1
IK 180 400 Combo
9991013 180 70 2.020 / 1.600 125 1.470 ST 1
IK 200 Bare
1020000 200 64         2
IK 200 Bare
1020002 200 70         2
IK 200 Pkg
1021000 200 64 2.020 / 1.600 100 1.250 ST 2
IK 200 Pkg
1021001 200 64 2.020 / 1.600 125 1.470 ST 2
IK 200 Pkg
1021006 200 70 2.020 / 1.600 100 1.250 ST 2
IK 200 Pkg
1021007 200 70 2.020 / 1.600 125 1.470 ST 2
IK 200 350 Combo
9991010 200 70 2.020 / 1.600 125 1.470 ST 1
IK 200 400 Combo
9991011 200 70 2.020 / 1.600 125 1.470 ST 1
BP IK 210 Bare
1028000 210 75         2
BP IK 210 Pkg
1028100 210 75 2.080 / 1.600 125 1.470 ST 2
BP IK 210 Pkg
1028101 210 75 2.080 / 1.600 240 1.550 TI 2
BP IK 210 Pkg
1028102 210 75 2.080 / 1.600 240 1.550 TI 2
BP IK 210 Pkg
1028103 210 68 2.080 / 1.600 125 1.470 ST 2
BP IK 210 Pkg
1028104 210 68 2.080 / 1.600 240 1.550 ST 2
BP IK 210 Pkg
1028105 210 68 2.080 / 1.600 240 1.550 TI 2
BP IK 210 Pkg
1028106 210 64 2.080 / 1.600 125 1.470 ST 2
BP IK 210 Pkg
1028107 210 64 2.080 / 1.600 240 1.550 ST 2
BP IK 210 Pkg
1028108 210 64 2.080 / 1.600 240 1.550 TI 2
BP IK 210 350 Combo
9991014 210 75 2.080 / 1.600 125 1.470 ST 1
BP IK 210 400 Combo
9991015 210 75 2.080 / 1.600 125 1.470 ST 1

 

 

 

 
ALSO AVAILABLE POLISHED

The IK® 180,IK® 200, and BP IK® 210 are available in aTop End Combo Kit