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BRODIX offers all versions of 23° heads ranging from out-of-the-box castings to completely assembled packages. There is a BRODIX head for virtually every small block engine.
Combustion chambers are available in sizes from 56 cc - 67 cc. Valve sizes range from 2.020 to 2.080 depending on bore sizes and valve centerlines. Most of our 23° heads have angled spark plugs, but straight plugs may be installed in some versions upon request. The BRODIX deck surface is the strongest in the industry allowing the use of nitrous and blowers. Hardened valve seats are standard allowing use with unleaded fuels. Phosphorous bronze valve guides assure proper valve guide wear.
When thinking of small block Chevy compatible heads - think BRODIX!
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Intake Port
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Chamber Volume
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Valve Sizes Intake/Exhaust
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Plug Angle
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Exhaust
Pattern
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Valve
Centerline
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Intake Manifold
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-8 PRO
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185 cc
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67 cc
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2.020, 2.050, 2.080/1.600
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Straight/ Angle
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Standard
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Standard
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HV 1016
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-8
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194 cc
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67 cc
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2.080/1.600
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Straight/ Angle
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Standard/ Spread Port
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Standard
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HV 1000 Series
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-10
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210 cc
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67 cc
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2.080/1.600
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Straight/
Angle
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Standard/ Spread Port
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Standard
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HV 1000 Series
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-11
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221 cc
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67 cc
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2.080/1.600
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Angle
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Standard/ Spread Port
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Standard
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HV 1000 Series
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Cubic Inch
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Compression
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Camshaft
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RPM
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Application
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-8 PRO
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355-406
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9.1 Minimum
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Hydraulic/
Flat Tappet
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3500-6500
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Street/Pro Street
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-8
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355-377
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11.0 Minimum
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Flat Tappet/
Roller
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3800-6800
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Short Oval Track/
Bracket Race/
Pro Street
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-10
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355-406
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11.5 Minimum
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Flat Tappet/
Roller
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4000-7000
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Oval Track/
Bracket Race/
Pro Street
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-11
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377-434
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12.0 Minimum
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Roller
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4500-7500
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Long Oval Track/
Bracket Race
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Valve Size
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0.200
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0.300
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0.400
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0.500
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0.600
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0.650
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0.700
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-8 PRO
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2.080 Intake
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134
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191
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230
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240
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1.600 Exhaust
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106
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135
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153
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160
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-8
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2.080 Intake
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134
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191
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230
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240
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1.600 Exhaust
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110
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139
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155
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161
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-10
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2.080 Intake
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145
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195
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240
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253
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262
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262
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262
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1.600 Exhaust
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110
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139
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155
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161
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166
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168
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168
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-11
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2.080 Intake
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132
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188
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232
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260
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256
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258
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258
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1.600 Exhaust
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109
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138
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155
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161
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166
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167
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167
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• PS CB:
Valve Bowls Blended
• PS MI:
Match Intake Port to FP 1204 (-8 PRO)
Match Intake Port to FP 1206 (-8, -10, -11)
• PS Valve Job:
Competition Valve Job
• Intake Valves:
2.020 x 4.920 o.a.l. - BR 6170DI (-8 PRO)
2.055 x 4.920 o.a.l. - BR 60005 (-8 PRO)
2.080 x 4.965 o.a.l. - BR 81019
(-8 PRO, -8, -10, -11)
• Exhaust Valves:
1.600 x 4.940 o.a.l. - BR 6169DI (-8 PRO)
1.600 x 4.965 o.a.l. - BR 81021 (-8,-10,-11)
• Valve Springs:
1.470 Hydraulic Roller Valve Spring -
CC 987, 125 lb Closed, 325 lb Open,
1.900 Installed Height,
.575 Maximum Lift (-8 PRO)
1.550 Roller Valve Spring - GA 1000,
240 lb Closed, 550 lb Open,
1.950 Installed Height,
.700 Maximum Lift (-8, -10, -11)
• Retainers:
1.430 7° Steel - CC 743 (-8 PRO)
1.500 10° Titanium - MA 2398BR (-8, -10, -11)
• Valve Locks:
10° Jumbo - CC 611
• Rocker Studs:
3/8 - BR 318S (-8 PRO)
7/16 - BR 716L, AR RRS-4I (-8, -10, -11)
• Guide Plates:
5/16 - CC 4808
• Valve Seals:
11/32 - US VS529V
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• Torque Heads:
70 ft-lb
• Torque Rocker Studs:
40-45 ft-lb
• Intake Gaskets:
FEL-PRO 1204, COMETIC C5416 (-8 PRO)
FEL-PRO 1206, COMETIC C5414 (-8, -10, -11)
• Head Gaskets:
350 - FEL-PRO 1003, COMETIC C5399
400 - FEL-PRO 1004, COMETIC C5403
• Exhaust Gaskets:
FEL-PRO 1404, COMETIC C5417 (-8 PRO)
FEL-PRO 1406, COMETIC C5415 (-8, -10, -11 STD)
MG 1500, COMETIC C5424 (-8, -10, -11 SP)
• Head Bolts:
MANLEY 42313
• Head Bolt Washers:
MANLEY 42102
• Head Studs:
ARP 234-4301
• Accessory Bolt Holes Are Drilled
• Spark Plug Starting Points:
CHAMPION RN12YC or AUTOLITE 3924
for Pump Gas (-8 PRO)
AUTOLITE 51 or NGK B9ES
for Alcohol (-8, -10, -11)
AUTOLITE 51 or NGK B8ES
for Gas (-8, -10, -11)
• Spring Pockets:
May Not Be Cut Any Larger or
Deeper Than 1.550 (-8 PRO)
1.550 out of the Box,
May Be Cut to 1.625-
No Larger or Deeper (-8, -10, -11)
• Valve Angle:
23°
• Angle Milling:
.0078 in per cc
• Flat Milling:
.0060 in per cc
• Angle Machining:
Not Available
• Dowel Shift:
Not Avaiable
• Pushrod Slots:
Standard
• Stud Girdle:
Standard - BR 6435
40/60 - BR 6440
• Rocker Arms:
Standard
• Lifters:
Standard
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8 PRO Bare
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Straight Plug
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1080000
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8 PRO Pkg
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Straight Plug
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1081002
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8 PRO Bare
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Angle Plug
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1080001
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8 PRO Pkg
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Angle Plug
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1081005
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8 SP Bare
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1080002
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8 SP Pkg
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1081012
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8 STD Bare
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1080003
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8 STD Pkg
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1081014
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10 SP Bare
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1100000
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10 SP Pkg
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1101000
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10 STD Bare
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1100002
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10 STD Pkg
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1101003
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11 SP Bare
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1110000
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11 SP Pkg
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1111000
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11 STD Bare
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1110004
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11 STD Pkg
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1111008
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Phone: (479) 394-1075 • Fax: (479) 394-1996 • 301 Maple • P.O. Box 1347 • Mena, Arkansas 71953
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| Not legal for sale or use on pollution controlled motor vehicles. |
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© 2008 by Brodix, Inc.
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