AFR 3835/3838 BBF 315/75 OR 85CC .850 LIFT ASSEMBLED YOUR CHOICE OF CHAMBER SIZE

Regular price $ 2,968.38

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
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

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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Warning: May cause cancer and reproductive harm.