AFR lightweight Phenolic carburetor spacers for 4150 style carbs are available in an 1" thick open or tapered four hole version. Both versions will act as a heat barrier between the manifold and carburetor to keep the fuel in the float bowls cooler, as we

Aluminum Push-In Breather with 1" Neck is for use with AFR valve covers.

This aluminum PCV valve with 3/4" neck is recommended for use with AFR valve covers.  AFR's PCV valve come in a polished finish.

This T&D Shaft Mount System is designed for AFR 227c, 235cc, and 245cc with a 1.5 rocker ratio and .450 offset.  Get the most out of your AFR cylinder heads with these high quality shaft mount systems from T&D Machining.

This T&D Shaft Mount System is designed for AFR 227c, 235cc, and 245cc with a 1.6 rocker ratio and .450 offset.  Get the most out of your AFR cylinder heads with these high quality shaft mount systems from T&D Machining.

This T&D Shaft Mount System is designed for AFR 245cc NPP with a 1.6 rocker ratio and .550 offset.  Get the most out of your AFR 245cc cylinder heads with these high quality shaft mount systems from T&D Machining.

• SBC Head Stud for AFR SBC Small Bolt Cylinder Heads (Please call to enquire)
• ARP 7/16" to 3/8" Stepped Head Stud

• AFR SBC Exhaust Gaskets

• AFR SBC Intake Gaskets

• AFR SBC Intake Gaskets

AFR’s 180cc "Street" heads are a cost effective performance choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines with displacements up to 383 cubic inches, operating up to 6000 RPM. Legal for 1994 and older emissions controlled vehicles under CARB EO #D-250-2. Component upgrade and machining options are available to customize AFR Heads to your specific build (see pg. 45). To ensure trouble free operation of AFR cylinder heads & parts please view the footnotes on pg. 50 for additional information.
 

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 is proud to announce the release of our new #4812 dual plane intake manifold for the popular small block Chevy engine platform. Developed to match the port designs of our popular cylinder heads as closely as possible, providing an optimized intake tract for increased performance. These As-Cast pieces were modeled using our 195cc program and provide the best fitment out of the box, hands down. Perfect for applications with an RPM range up to 6,500 RPM

• Ideal for 302 to 406 C.I.
• Cast in nitrous bosses Cast and machined in the USA
• Will not fit TBI/TPI 72° Intake Bolt
• Dual distributor clamp hold downs
• Carburetor pad height is 4.725” ( front 4.200”, back 5.250”)
• Front and rear water outlets for additional cooling benefits
• Square bore carburetors only and will not fit under stock Corvette hood

• I.D. Spring Seat 1.440 OD x .740 OD x .570 ID
• Fits 8020 Spring
• (1 Piece) or (Set of 16)

• O.D. Spring Cup 1.380 OD x 1.300 ID x .570 ID
• Fits 8017 & 8019 spring
• (1 Piece) or (Set of 16)

• Solid Roller Dual Valve Spring 1.580 O.D.
• Erson # E 915043
• 235 lbs. on seat
• .730” 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)

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

• 8019-1 - Contains 1 Spring
• 8019-16 - Contains 16 Springs
• Hydraulic Roller Spring 1.270 O.D.
• Premium Grade Chrome Silicon
• 155 lbs. on seat
• .650” max lift
• Max RPM 7000-7200
• SBC/SBF Steel Retainer: 8514
• SBC/SBF Titanium Retainer: 8515
• SBC/SBF Valve Lock: 9007
• LSx Titanium Retainer: 8512
• LSx Valve Lock: 9007
• (1 Piece) or (Set of 16)

• Hydraulic Roller Spring 1.290 O.D.
• Premium Grade Chrome Silicon
• 140 lbs. on seat
• .600” max lift
• Max RPM 6300-6500
• SBC/SBF Steel Retainer: 8514
• SBC/SBF Titanium Retainer: 8515
• SBC/SBF Valve Lock: 9007
• LSx Titanium Retainer: 8512
• LSx Valve Lock: 9007
• (1 Piece) or (Set of 16)

• PAC Racing Springs #1940
• Street Hydraulic Roller Spring 1.550 O.D.
• 175 lbs. on seat
• .725” max lift
• Max RPM 6500-6700
• 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)

• PAC Racing Springs
• 1.550” OD Solid Roller Dual Race Spring
• 220 lbs. on seat
• .710” 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 adjustable guide plates
• Replacement guide plate
• (1 Piece) or (Set of 8) (both left and right side)

• 7/16" Adjusting Nut
• Sold as single piece
• For use on SBC/SBF
• For use on BBC/BBF Intake Only
• (1 Piece) or (Set of 8) or 16

• 3/8" Adjusting Nuts
• (1 Piece) or (Set of 16)
• For use on SBC/SBF stud girdles

• AFR LSx, SBF, SBC Bronze Guide, .502" O.D.
• (1 Piece) or (Set of 16)

• 10 degree Valve Locks for 8mm stem diameter
• LSX/SBC/SBF Bead Lock
• (1 Piece) or (Set of 16)

• 7 degree Valve Locks for 8mm stem diameter
• For use with spring AFR 8017 & 8019
• (1 Piece) or (Set of 16)

• SBC Eliminator Titanium 7 Degree Retainer 1.245 OD x .885 ID x .655 ID
• Upgrade option for SBC/SBF using AFR 8017/8019 springs
• Comes standard on SBC LT Cylinder heads
• Requires #9007 Bead Lock Keepers
• (1 Piece) or (Set of 16)

• Steel 7 degree Retainer 1.250 O.D.
• Comes standard on SBC/SBF using AFR 8017/8019 springs
• Requires #9007 Bead Lock Keepers
• (1 Piece) or (Set of 16)

• Steel 10 degree Retainer 1.550 O.D.
• Comes standard on BBC, SBC, BBF, & SBF with spring 8000, 8002, 8005, 8016, & 8023
• 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)

• Steel 10 degree Retainer 1.450 O.D.
• For SBC/SBF with AFR #8020 spring
• Requires #9009 Bead Lock Keepers
• (1 Piece) or (Set of 16)