Air Flow Research AFR1137-T-65 Chev SB 245cc Eliminator Racing Aluminium Cylinder Heads Angled

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AFR - Air Flow Research

AFR1137-T-65
$5,423.20 AUD
$5,423.20 AUD
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Air Flow Research AFR1137-T-65 Chev SB 245cc Eliminator Racing Aluminium Cylinder Heads Angled

Item Description

AFR AFR1137-T-65 CHEV SB 245CC ELIMINATOR RACING ALUMINIUM CYLINDER HEADS ANGLED PLUG
Upgraded Ki65cc chambers & Titanium retainer upgradeOur largest and most powerful 60/40 head for the small block Chevy features 100% CNC machined intake runners, exhaust ports and combustion chambers. Capable of flowing 350 CFM at 0.800" of lift these heads come equipped with Titanium retainers and high quality components throughout, the 60/40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry andextra machining for 3/8" pushrod clearance. NPP stands for "no pushrod pinch."
245cc NPP Aluminum SBC Cylinder Heads
Part # Exhaust Port Porting Finish Combustion Chamber
1137-TI Stock Competition 70cc
1138-TI Stock Competition 80cc
1139-TI Spread Port Competition 70cc
1140-TI Spread Port Competition 80cc

245cc Race Head Flow Chart
.200 .300 .400 .500 .550 .600 .650 .700 .800
Int 161 224 271 305 320 330 336 341 345
Exh 128 181 214 235 242 247 251 254 256
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 5.000" Overall Valve Length
AFR7253
8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length
AFR7254
PAC Racing Springs 1.550" OD Solid Roller Dual Valve Spring Pac #1225, 250 lbs on seat, .800" maximum lift, Max RPM 8000-8200
AFR8001
10° Titanium Retainers 1.490" O.D x 1.115" I.D x .745" I.D
AFR8505
10° Bead Lock Valve Keepers with lashcap recess
AFR9009
Viton Valve Seals .600" O.D x .495" I.D
AFR6612
Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
AFR8048
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep
AFR9060
Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
AFR9070
8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L
AFR9051
Specifications & Features:
Material
A356 Aluminum
Intake Port Volume
245cc
Intake Port Dimension
2.200" H x 1.300" W 7/16 Radius
Intake Port Location
Stock
Exhaust Port Volume
80cc
Exhaust Port Dimension
1.465" H x 1.570" W
Exhaust Port Location
.250" Raised
Combustion Chamber Size
65cc
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
2.730 sq. in.
Spark Plug Dimensions
14mm x .750" w/Gasket Seat
Carb EO#
Non Emissions Compliant


Manufacturer Information

  • Manufacturer: AFR - Air Flow Research
  • Manufacturer Part Number:
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