AFR 1132/1130 SBC 235/70 OR 80CC .800 LIFT ASSEMBLED YOUR CHOICE OF CHAMBER SIZE

Regular price $ 2,560.81

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

Our 235cc "Competition" heads come with 100% CNC machined intake runners, exhaust ports and combustion chambers. Equipped with Titanium retainers and high quality components, featuring a 60/40 valve spacing which requires  shaft mounted rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications).
235cc Aluminum SBC Cylinder Heads
Part # Exhaust Port Porting Finish Combustion Chamber
1132-TI Stock Competition 70cc
1130-TI Stock Competition 80cc
1134-TI Spread Port Competition 70cc
1136-TI Spread Port Competition 80cc

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235cc Race Head Flow Chart
  .200 .300 .400 .500 .550 .600 .650 .700 .800
Int 159 221 270 305 316 324 330 334 340
Exh 120 175 214 235 242 247 251 254 256

Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.155", 3/4" radius plate exhaust, 1 7/8" curved pipe

Included Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
8mm Bead Lock Intake Valve, 2.125" x 5.00" long
7253
8mm Bead Lock Exhaust Valve, 1.600" x 5.030" long
7254
PAC Racing Springs 1.550" OD Solid Roller Dual Drag Race Spring, 250 lbs on seat, .800" maximum lift, Max RPM 8000-8200
8001
10° Titanium Retainers 1.490" O.D x 1.115" I.D x .745" I.D
8505
10° Bead Lock Valve Keepers with lashcap recess
9009
ARP 7/16" Rocker Studs
6405
Adjustable 5/16" Guide Plates
6103
Viton Valve Seals .600" O.D x .495" I.D
6612
Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
8048
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep
9060
Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
9070
8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L
9051
Specifications & Features:
Material
A356 Aluminum
Intake Port Volume
235cc
Intake Port Dimension
2.200" H x 1.290" W 5/16 Radius
Intake Port Location
Stock
Exhaust Port Volume
80cc
Exhaust Port Dimension
1.430" H x 1.540" W
Exhaust Port Location
.250" Raised
Combustion Chamber Size
70cc or 80cc
Valve Cover Bolt Pattern
Perimeter Bolt
Valve Angle
23°
Valve Spring Pocket Diameter
1.580" O.D
Max Valve Spring Pocket Machining
1.680" O.D
Warning: Do not machine spring pad any deeper.
Deck Thickness
.750"
Minimum Bore Diameter
4.000"
Flat Mill
.006" per cc 65cc Maximum
Angle Mill
.009" per cc 60cc Maximum
Note: Angle mills might require .120" Thick intake gasket.
Minimum Cross Sectional Area
2.470 sq. in.
Spark Plug Dimensions
14mm x .750" w/Gasket Seat
Carb EO#
Non Emissions Compliant

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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Warning: May cause cancer and reproductive harm.