This is a brand new Set of 2 High Performance Cylinder Heads for a Porsche 914 2.0L   Made from an AA 2.0L 914 casting with breather, Heads comes with Stainless Steel 42mm Intake and a Stainless Steel 36mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They are ready to install. Made from an AA 2.0L Type 4 Casting with Breather using 8mm valve stems it is available with both single or dual high rev springs. The heads can also be opened to 103 to accommodate the larger bore sizes. 

Engine: Porsche 914 2.0L 

Springs: Single or Dual High rev

Valves: 42mm Intake by 36mm Exhaust

Casting: AA 2.0L 914

Plug Size: 14mm (Replacement Bosch Number is W8CC or NGK is B5ES.)

Bore: 94, works with 94 & 96mm Kits  

Bore: 103 works with 103, 104, & 105mm Kits 

Please Pick Bore size, and Spring Upgrade when ordering Above