AFR 300cc Magnum BBC cylinder heads are suggested for aggressive builds. They boast 100 percent CNC-ported intake, exhaust, and chambers—as well as A356 aluminum casting, and high-quality components throughout. These oval port competition packages are available with hydraulic or solid roller springs.

More From This Category

Trick Flow Cylinder Head, PowerPort® 290, Fast As Cast®, Assy, 74cc Chambers, 215 Lb. Spring, Ti Ret., For Ford 429/460, Each

Trick Flow Cylinder Head, PowerPort® 290, Fast As Cast®, Assy, 74cc Chambers, 215 Lb. Spring, Ti Ret., For Ford 429/460, Each

$2,695.82

Dart Cylinder Heads Parts, Valves, Springs, Retainers, Locks, Guideplates, Studs, 2.020/1.600 in. Valves, 1.290 LS1, Kit

Dart Cylinder Heads Parts, Valves, Springs, Retainers, Locks, Guideplates, Studs, 2.020/1.600 in. Valves, 1.290 LS1, Kit

$742.53

AFR Cylinder Head, 24° BBC 265cc Oval Port Partially CNC Ported, w/ valve job, w/CNC 112cc chambers, No Parts, ready for assembly, Pair

AFR Cylinder Head, 24° BBC 265cc Oval Port Partially CNC Ported, w/ valve job, w/CNC 112cc chambers, No Parts, ready for assembly, Pair

$4,413.79

AFR 10 degree Machined Hardened Steel Valve Locks 8mm LS1 Bead Lock, Set of 16

AFR 10 degree Machined Hardened Steel Valve Locks 8mm LS1 Bead Lock, Set of 16

$79.93

Dart Cylinder Head, Pro1 Chevrolet Small Block, 200.00 CC Port, 72.00 CC Chamber, Each

Dart Cylinder Head, Pro1 Chevrolet Small Block, 200.00 CC Port, 72.00 CC Chamber, Each

$1,982.37

Dart Cylinder Head, Pro 1, LT 58cc Chamber, 200cc Intake Runner, AP VJ 2.02/1.60, Each

Dart Cylinder Head, Pro 1, LT 58cc Chamber, 200cc Intake Runner, AP VJ 2.02/1.60, Each

$1,352.20