Porsche 914 2.0L Performance Cylinder Heads, 42X36 "Pair" Porsche 911 The 501 Series Castings come

The 501 Series Castings come STD with: Increased material at the intake surface giving you the ability to make much bigger ports

0L Spark Plug angle

Or the Guide Hole can be bored to except the 13mm Type 4 guides or 15mm Porsche Guides when running the stock sodium filled valves

Porsche 356/912 Top End Gasket set

Cylinder is 14

Porsche 914 2.0L Performance Cylinder Heads, 42X36 "Pair" Porsche 911 The 501 Series Castings comeThis 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