245CC SBC RACE CYLINDER HEAD

$3,580.33

SOLD AS A PAIR

Option 1:



Option 2:

Our 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 and extra machining for 3/8" pushrod clearance. NPP stands for "no pushrod pinch."
 

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
8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length
PAC #1225 Racing Springs 1.550” OD Solid Roller Dual Valve Drag Race Spring, 250 lbs. on seat, .800” max lift, Max RPM 8000-8200
10° Titanium Retainers 1.500” O.D x 1.120” I.D x .705” I.D
10° Bead Lock Valve Keepers with lashcap recess
Viton Valve Seals .600" O.D x .495" I.D
Hardened Valve Spring I.D Locator 1.550” O.D x .780” I.D
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep
Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L


Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes.


245cc Competition Flow Chart
  .200 .300 .400 .500 .550 .600 .650 .700 .800
Int 161 224 261 301 311 320 331 337 345
Exh 128 165 214 228 237 238 243 245 250

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


Item# Description
1137-TI

245cc SBC Race Cylinder Head



$3,580.33

ADD TO CART
1138-TI

245cc SBC Race Cylinder Head



$3,580.33

ADD TO CART
1139-TI

245cc SBC Race Cylinder Head



$3,580.33

ADD TO CART
1140-TI

245cc SBC Race Cylinder Head



$3,580.33

ADD TO CART

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