AFR lightweight Phenolic carburetor spacers for 4150 style carburetors 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,

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.

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

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.