Big Block Chevrolet

AFR 2101-1 Big Block Chevrolet 325cc Rectangle Port , 121cc, CNC Bowl Blend & Fully CNC Chamber Ready, Complete w/ Hyd Roller Set up

AFR Recommended for more aggressive street or street/strip Big Block Chevrolet applications with displacements up to 540 cubic inches, operating at or below 6800 RPM. The 325cc magnum cylinder head intake runners and exhaust ports are full CNC...

AFR 2000 Big Block Chevrolet 315cc Rectangle Port Fully Ported CNC Chambers, 121cc, Race Ready, Complete w/ Hyd Roller Set up

AFR Recommended for aggressive street or street/strip applications with displacements up to 540 cubic inches, operating at or below 6800 RPM. Featuring fully CNC machined intake runners, exhaust ports and combustion chambers. These heads are capable...

AFR 2100-1 Big Block Chevrolet 305cc Rectangle Port Fully Ported CNC Chambers, 121cc, Race Ready, Complete w/ Hyd Roller Set up

AFR Recommends for moderate street or street/strip applications with displacements up to 509 cubic inches, operating at or below 6500 RPM. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are fully CNC...

AFR 2100 Big Block Chevrolet 305cc Rectangle Partial CNC Chambers, 117cc, Race Ready, Complete w/ Hyd Roller Set up

AFR Recommends for moderate street or street/strip applications with displacements up to 509 cubic inches, operating at or below 6500 RPM. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered with...

AFR 3670 Big Block Chevrolet 300cc Oval Port Fully CNC Ported, 112cc chambers, Race Ready, Complete w/ Hydraulic Roller Set up

AFR Recommends for agressive street, street/strip or race Big Block Chevrolet with displacements up to 540 cubic inches operating at or below 6800 RPM. The 300cc oval port cylinder heads feature 100% CNC machined intake runners, exhaust ports and...

AFR 3640 Big Block Chevrolet 290cc Oval Port Fully CNC Ported, 112cc chambers, Race Ready, Complete w/ Hydraulic Roller Set up

AFR medium sized 290cc oval port cylinder head is recommended for moderate street or street/strip Big Block Chevrolet with displacements up to 509 cubic inches, operating at or below 6500 RPM. Features 100% CNC machined intake runners , exhaust ports and...

AFR 3610 Big Block Chevrolet 265cc Oval Port Partially CNC Ported, 109cc chambers, Race Ready, Complete w/ Hydraulic Roller Set up

AFR small port, high velocity 265cc cylinder heads are a cost effective choice compared to re-worked factory Big Block Chevrolet cylinder heads. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered...