AFR cylinder head logo

AFR Cylinder Heads
AFR SBC 245cc Eiminator
23°Small Block Chevy Racing Heads

with current pricing

AFR SBC 245cc Aluminum Performance 23° Racing Cylinder Heads

click here to enlarge AFR Cylinder Head Image
afr cylinder head

*--click here to see cylinder head listings and pricing--
*--AFR 245cc is only available in the Competition Port and comes with a 2.125 intake and 1.600 semi-tulip exhaust and choice of 70 or 80cc chamber volumes--
*--AFR's largest and best flowing SBC 23° cylinder head will offer 350cfm at .800 lift to fill even the largest SBC cylinders to climb to the higher RPM operation that they like--
*--the 245cc head enjoys the 23° valve angle along with the 60/40 offset valve locations the same as the 227cc and 235cc runner heads, however the 245cc runner product will require a shaft mount rocker system with a .180 offset intake lifter and do not accept stud mount style rockers at all--
*--exhaust port and bolt pattern are raised .250 (1/4”) over GM L98 head rarely affecting header or chassis fitment--
*--larger diameter 3/8” pushrods fit without additional clearancing primarily due to the fact we enlarged and widened the pushrod pinch removing that chokepoint in the entrance of the intake allowing us to design a port with a more direct shot at the back of the valve that also has a more consistent cross sectional area and velocity profile-NPP is an abbreviation for "no pushrod pinch"--
*--see basic parts list and some suggestions on manifolds and gaskets--
*--A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications--great tech help @ www.airflowresearch.com--

If you need assistance in selecting the best AFR cylinder head for your application, you may want to e-mail support@dfperformance.com a description of your combination or call 856-767-4095 or 856-767-7740, and we'll see if we can help out.

ups logo credit card logo

FREE ground SHIPPING inside the continental USA on purchases over $2900.00--allow about 2-3 weeks for Cylinder Head orders to ship--
check out AFR SBC Cylinder Head Options to add a few items you may need--

Don't forget to join us onFacebook logo our facebook page



SBC 245cc Runner go to
245cc Flow Charts
go to
SBC Head Options
Top
afr sbc cylinder headAFR SBC 245cc CNC Competition Port Cylinder Head
AFR’s 245cc Competition Port Small BLock Chevy head with 350cfm @ .800lift out of the box is perfect for today's large SBC combinations, whether it is a large street combo or strictly track, this is something you don't want to overlook--
  see basic parts list for parts included in head assembly and some suggestions on manifolds and gaskets--- 
they will require either a .450 offset rocker with a .180 offset lifter or a .550 offset rocker and a standard centered lifter
-see    SBC Cyl Head Options for upgraded intake and exhaust valves-
NOTE: part numbers ending in -Ti are already equipped with titanium retainers
cc plug part # valve/dia. runner
cc
spring retainer seat pressure open pressure max. lift price/pair buy
80cc angle 1138NP 2.125/1.600 245 Bare heads have full cnc competition port/comp valve job $2274.65
1138-Ti 2.125/1.600 245 1.550 titanium 250 750lbs .800 $2643.25
70cc 1137NP 2.125/1.600 245 Bare heads have full cnc competition port/comp valve job $2274.65
1137-Ti 2.125/1.600 245 1.550 titanium 250 750lbs .800 $2643.25
go to
SBC 245cc Runner
go to
245cc Flow Charts
go to
SBC Head Options
Top
AFR 245cc Cylinder Head w/CNC "Competition" Porting Package Flow checked on a 4.125 bore-Flow Chart cfm @28" H2O
valve size .200 .300 .400 .500 .550 .600 .650 .700 .800
2.125 int. 165 232 278 310 321 330 336 341 350
1.600 exh. 128 181 214 235 242 247 251 254 256
go to
SBC 245cc Runner
go to
245cc Flow Charts
go to
SBC Head Options
Top
the AFR SBC Cylinder Head Options listed below
may only be ordered along with a complete set of AFR Cylinder Heads--
--keep in mind, free shipping for purchases totaling $2900.00 or more for USA zipcodes--
Item description price buy
inconel valves --AFR upgrade #7514-inconel exhaust valves replace the stainless valves that are normally supplied with the heads-used in high heat situations such as forced induction or nitrous $170.72
inconel valves --AFR upgrade #7516-Heavy Duty Intake valves replace the stainless valves that are normally supplied with the heads-used in high heat situations such as forced induction or nitrous $32.00/a set

the AFR SBC Cylinder Head Basic Package Components are listed below
and a few specifications and suggestions for Supporting Components--
parts incl. w/Heads part # some suggestions
245cc Intake Valve 2.125x5.006 7253 Cyl Head torque w/moly----70lbs
245cc Exhaust Valve 1.600x5.024 Oal #7254 Rocker Stud Torque--------55lbs
245cc Mech Roller Spring-1.550 250/750lbs AFR #8001 Exh Gasket----------AFR#6835 or FP#1405
Manley 10° Chrome Moly Retainer #8511 Int Gasket (1.31x2.180)--AFR#6820 or FP#1206
10° valve locks #9009 Head Bolts-ARP#134-3701(12pt) / 134-3601(6pt)
Viton Valve Seals #6612 Head Stud kit--ARP#234-4301(12pt) / 134-4001(6pt)
Hardened Spring Cup #8048 227ccManifolds---AFR TXR,#4801, LT4
Intake Valve Seats #9060 235ccManifolds---AFR TXR,#4801
Exhaust Valve Seats #9070 Spark Plugs-----Autolite 3910
Bronze Valve Guides-(Int and Exh) #9051 Offset Stud Girdle----------AFR#6208
Intake Rocker Stud-7/16 #6405 valve spring pockets can be cut to 1.680, no deeper
Exhaust Rocker Stud-7/16 #6405 Valve Spacing/Valve Angle----------60/40--23°
Adjustable Guide Plates-5/16 #6103 Rocker Arms --T&D .450offset shaft mount