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IK Series / 23° Cylinder heads

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.

IK Series / 23° Cylinder heads

• Standard Valve Cover Pattern
• 64 cc / 70 cc Combustion Chambers
• Straight Spark Plugs
• Ends Milled and Drilled for Accessories
• Ductile Iron Valve Seats for Use With Unleaded Fuel
• CNC Ported Combustion Chambers Available as Large as 75 cc

HEAD DETAILS

PACKAGE HEADS, FACTS and RELATED COMPONENTS

Package Heads

PS CB:

Valve Bowls Blended

PS MI:

Match Intake Port to FP 1204 (IK 180)
Match Intake Port to FP 1206 (IK 200, IK 215)
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 (IK 215, 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 (IK 215, 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
(IK 215, BP IK 210)

1.550 Roller Valve Spring – PAC 1941,
255 lb Closed, 610 lb Open,
1.950 Installed Height,
.700 Maximum Lift
(IK 215, 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 (IK 215, BP IK 210)

Valve Locks:

7° – PI PF – 555 (IK 180, IK 200)
10° – Jumbo – CC 611 (IK 215, BP IK 210)

Rocker Studs:

3/8 – BR 318S (IK 180, IK 200)
7/16 – BR 716L, AR RSS-4I (IK 215, BP IK 210)

Guide Plates:

5/16 – CC 4808

Valve Seals:

11/32 – US VS529V

Facts & Related Components

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, IK 215)
FEL-PRO 1205 (BP IK 210)

Exhaust Gaskets:

FEL-PRO 1404, COMETIC C5415
(IK 180, IK 200)
FEL-PRO 1406, COMETIC C5415
(IK 215, BP IK 210)

Head Studs:

ARP 134-4001 (6pt)

Spark Plug Starting Points:

CHAMPION RN12YC or AUTOLITE 3924
for Pump Gas
NGK R5671A-8
for Racing Gas

Intake Valve Seats:

DBP 2.131 5/16

Exhaust Valve Seats:

DBP 1.650 3/8

Intake and Exhaust Valve Guides:

SMG 545 11/32 CM

Spring Pockets:

May Not be Cut Any Larger
or Deeper Than 1.550

Valve Angle:

23°

Flat Milling:

.0060 in per cc

Dowel Shift:

Not Available

Pushrod Slots:

Standard

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

Part #

Valve Size

0.200

0.300

0.400

0.500

0.600

0.650

0.700

0.800

0.900

EASY ORDER NUMBERS

Part #

Easy Order #

Port Vol.

Cham. Vol.

Int/Exh Valve

S. S. Pressure

Spring Diam.

Ret. ST/TI

Per

INSTRUCTION MANUAL

(479) 394-1075

301 Maple Ave.
P.O. Box 1347
Mena, Arkansas 71953

  • Cast Iron Big Block Chevy Compatible
  • BRODIX® Blocks In Stock
  • Important Announcement
  • April 2021 Sale
  • VC 101 Valve Cover Sale
  • Nothing Says Love Like VC 201™ Big
  • Block Valve Covers

Copyright © 2022 Brodix All Rights Reserved. 
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE 
Products purchased from BRODIX® may be subject to sales tax.

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