• Titanium 10 degree Retainer 1.500 O.D.
• Upgrade option for BBC, SBC, BBF, & SBF with spring 8000, 8002, 8005, 8016, & 8023
• Comes standard on BBC, SBC, BBF, & SBF with spring 8001
• SBC/SBF require AFR #9009 Bead Lock Keepers
• BBC require AFR #9005 Square Lock Keepers
• BBF require AFR #9010 Bead Lock Keepers
• (1 Piece) or (Set of 16)

• 8mm Stem Diameter
• Stainless Steel
• Bead Lock Valve Keeper
• 2.080" x 5.000" OAL
• Intake Valve for SBC
• (1 Piece) or (Set of 8)

• 8mm Stem Diameter
• Stainless Steel
• Bead Lock Valve Keeper
• For use with SBF: 205cc and 225cc
• For use with SBC: 210cc, 220cc, 227cc, 235cc and 245cc
• (1 Piece) or (Set of 8)

• SBC/SBF 8mm Intake Valve
• 2.050 x 4.900 OAL
• Stainless Steel
• (1 Piece) or (Set of 8)

• SBC/SBF 8mm Intake Valve
• 2.020 x 4.900 OAL
• Stainless Steel
• (1 Piece) or (Set of 8)

• Lash Cap 11/32"
• BBC/BBF Only
• (1 Piece) or (Set of 16)

• SBC/SBF 8mm Intake Valve
• 2.080 x 4.900 OAL
• (1 Piece) or (Set of 8)

• 8mm Stem Diameter
• Inconel Exhaust Valve
• 1.600 X 5.030 O.A.L.
• Upgrade for SBC/SBF Exhaust Valves
• (1 Piece) or (Set of 8)

• I.D. Spring Seat 1.550 OD x .730 OD x .570 ID
• Fits Springs 8002 & 8016 for SBC/SBF
• (1 Piece) or (Set of 16)

• Lash cap 8MM
• SBF, SBC, and LSX
• (1 Piece) or (Set of 16)

• SBC/SBF 8mm Intake Valve
• 2.100 x 5.000 OAL
• (1 Piece) or (Set of 8)

• 8mm Intake Valve replacements for SBC
• 2.125 x 5.000 OAL
• Stainless Steel
• (1 Piece) or (Set of 8)

• I.D. Spring Seat 1.550 OD x .705 OD x .570 ID
• Fits Springs 8000 & 8001 for SBC/SBF
• (1 Piece) or (Set of 16)

• PAC Racing Springs #1225
• 1.550” OD Solid Roller Dual Drag Race Spring
• 250 lbs. on seat
• .800” max lift
• Max RPM 8000-8200
• Titanium Retainer: 8505
• SBC/SBF Valve Lock: 9009
• BBC Valve Lock: 9005
• BBF Valve Lock: 9010
• (1 Piece) or (Set of 16)

AFR's 8016 spring is built for use with solid flat tappet cam shafts operating up to 7200 RPM.

• 1.550” OD Solid Flat Tappet
• 140 lbs. on seat
• .650” max lift
• Max RPM 7200-7400
• Steel Retainer: 8511
• Titanium Retainer: 8505
• SBC/SBF Valve Lock: 9009
• BBC Valve Lock: 9005
• BBF Valve Lock: 9010
• (1 Piece) or (Set of 16)

AFR's 8020 spring is designed for use with hydraulic flat tappet cam shafts up to .550" lift.

• 1.437” OD Hydraulic Flat Tappet
• 125 lbs. on seat
• .550” max lift
• Max RPM 6100-6300
• Steel Retainer: 8510
• SBC/SBF Valve Lock: 9009
• (1 Piece) or (Set of 16)

• I.D. Spring Seat 1.650 OD x .850 OD x .570 ID
• Fits Springs 8031 for SBC/SBF
• (1 Piece) or (Set of 16)

• 3/8" Rocker Studs +.250 Length, ARP #134-7104
• (1 Piece) or (Set of 16)

• 7/16" Studs and Bolts Standard Length
• (1 Piece) or (Set of 16)

• Requires AFR #6612 Valve Stem Seal
• AFR LS3 Intake Guide
• (1 Piece) or (Set of 16)

AFR's 195cc "Competition" heads are the preferred choice for a more aggressive street or street/strip build. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for displacements up to 400 cubic inches, operating up to 6500-6800 RPM.

Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe

AFR`s 195cc "Street" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for displacements up to 400 cubic inches, operating up to 6500 RPM. Legal for 1994 and older emissions controlled vehicles under CARB EO #D-250- 2.
 

Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe

AFR's 200cc SB Chevy Enforcer Cylinder heads feature our permanent mold “As-Cast” technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. This budget friendly head is perfect for your 350 to 400 cubic inch operating below 6000 RPM.

They come fully assembled with the identical components found in our higher-end CNC ported cylinder heads; such as ARP rockers studs, racing springs, Viton valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring cups and our one piece 8mm 21 4N stainless steel valves.

They are available in straight or angle plug and bare without any parts for the DIY racer. Sold as a single piece; 2 are required per engine. Please see footnotes for additional information.

Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe

SBC Eliminator Single Plane Race Manifold 23° (3500 to 8000 RPM) AFR #4811

Designed for SB Chevy 23° heads with standard port location. This manifold is excellent for larger cubic inch serious street/strip or a wide variety of race applications.

• Carburetor pad height is 5.500” with 4150 carb flange
• Comes with cast in nitrous bosses
• Front and rear water outlets for additional cooling benefits
• Dual distributor clamp hold downs
• Specifically designed to fit and optimize your AFR heads with our unique carburetor pad clover shaped pattern
• Cast and machined in the USA
• As Cast Port Dimensions: 2.01" H x 1.09" W

Recommended intake gasket AFR #6901. Recommended carburetor spacer AFR #4450 1” open or AFR #4460 1” four hole, both are made from lightweight composite material to insulate your fuel from heat soak.

Air Flow Research is proud to announce the release of our NEW 4810 Eliminator SBC aluminum intake manifold. The new AFR intake manifolds are the perfect way to Eliminate the competition!

• Operating Range 3000-7500 RPM
• CNC port matched to SBC 195cc street cylinder heads
• 4150 carburetor flange
• Cast in nitrous bosses
• Carburetor pad height 4.580" overall
• Dual distributor clamp hold downs
• Front and rear water outlets for additional cooling benefits
• All AFR intake manifolds are cast and machined in the U.S.A.

AFR's 210cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for race applications and aggressive street/ strip builds up to 400 cubic inches, operating up to 6500- 6800 RPM.
 

Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060", intake 3/4" radius plate exhaust, 1 3/4" curved pipe

AFR's 220cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This is AFR's largest, best flowing head for use with conventional rocker arms. Recommended for race applications or radical "Pro Street" style builds.

Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe

AFR's 227cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications).
 

Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.155", intake 3/4" radius plate exhaust, 1 7/8" curved pipe

• SBC/SBF Enforcer Viton Rubber Valve Stem Seal
• Seal is colored brown
• .675" O.D x .513" I.D

Our 235cc "Competition" heads come with 100% CNC machined intake runners, exhaust ports and combustion chambers. Equipped with Titanium retainers and high quality components, featuring a 60/40 valve spacing which requires  shaft mounted rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications).
 

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