CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.
The 315cc heads are AFR's largest and best flowing BBF heads! They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, and high quality components throughout with .250 raised exhaust port locations. These heads are best suited for large displacement high RPM Big Block Ford racing engines or radical “Pro Street” style builds. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
| 315cc Aluminum BBF Cylinder Heads | ||
|---|---|---|
| Part # | Description | Combustion Chamber |
| 3834 | Competition Porting, .250" Raised Exhaust w/ Hydraulic Roller Springs |
75cc |
| 3835 | Competition Porting, .250" Raised Exhaust w/ Solid Roller Springs |
75cc |
| 3837 | Competition Porting, .250" Raised Exhaust w/ Hydraulic Roller Springs |
85cc |
| 3838 | Competition Porting, .250" Raised Exhaust w/ Solid Roller Springs |
85cc |
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| 315cc Street Head Flow Chart | ||||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | .750 | |
| Int | 162 | 241 | 309 | 360 | 405 | 415 | 423 | 427 |
| Exh | 127 | 172 | 218 | 252 | 274 | 279 | 284 | 284 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.380", 3/4" radius plate exhaust, 2 1/8" curved pipe
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Intake & Exhaust | |
| Competition 5-Angle Valve Job | |
| 11/32" Bead Lock Intake Valve 2.300" x 5.250" O.A.L |
7552
|
| 11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L |
7553
|
| PAC Racing #1224 1.625" OD Solid Roller Dual Valve Spring 275 lbs. on seat, .850" maximum lift, Max RPM 7400-7600 Uses #8518 Steel Retainer & #8046 Spring Cup (upgrades available) |
8031
|
| 10° Manley Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D |
8518
|
| PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700; Uses #8511 Steel Retainer |
8002
|
| 10° Manley Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D |
8511
|
| 10° 11/32" Beadlock Valve Keepers with lashcap recess |
9010
|
| ARP 7/16" Rocker Studs |
6407
|
| Adjustable 3/8" Guide Plates |
6108
|
| 11/32" Viton Valve Seals |
AFR #6610
|
| Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D |
8048
|
| Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep |
9065
|
| Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D |
9066
|
| 11/32" Bronze Valve Guides .502" O.D x 2.250" O.A.L |
9048
|
| Recommended Components: | |
| Intake Port Gasket |
6893
|
| Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads. | |
| Exhaust Port Gasket, Fel-Pro #1420 |
6891
|
| Head Gasket, 4.500 Bore, Fel-Pro #1018 |
6892
|
| Head Bolts, ARP #155-3603 |
6340
|
| Head Studs, ARP# 155-4203 12 Point |
6341
|
| Head Bolt Washers, Manley |
6320
|
| Stud Girdle |
6209
|
| 1.75 Shaft Mount Rocker Arms T&D |
6067
|
| Suggested Manifold |
AFR Single Plane, AFR# 4992 or 4993
|
| Spark Plug Starting Range |
Autolite 3932
|
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
315cc
|
| Intake Port Dimension |
2.275" H x 1.850" W x .575 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
142cc
|
| Exhaust Port Dimension |
1.850"H x 1.600"W
|
| Exhaust Port Location |
.250" Raised
|
| Combustion Chamber Size |
75cc or 85cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
14° Intake/8° Exhaust
|
| Valve Spring Pocket Diameter |
1.750" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.360"
|
| Minimum Cross Sectional Area |
3.440 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
SHIPS IN THE LOWER 48 STATES FREE!
CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.
CONTACT US THE PRICE IS NEGOTIABLE BEST OFFER
Warning: May cause cancer and reproductive harm.
