Ford Racing Performance Parts Three Valve Cylinder Heads - Tri-Power

The chain tensioners are of similar design to the modular engines that Ford used in the previous generation of Mustangs. The tensioners come off and the chains are removed.

Unbolt the cylinder heads as with any other application and pull them off the short-block.

The antifreeze that leaked into the cylinders is sucked out, and the old head gaskets are removed.

All leftover gasket material is scraped off. The surface must be clean before the new head gaskets are laid on the block.

Here is the stock cylinder head with the camshaft still in place and the stock exhaust manifold bolted on. It is easier to lift off the head with the cast exhaust manifold in place rather than remove it in the car.

The three-valVE heads are marked with R and L, making it easy to identify which head goes on each side of the engine.

Cam caps are used to hold the camshaft in place and are similar to the main caps on an engine block. They must be put back in the same location and are directional. The FRPP heads' caps are marked, so you can't bolt them down in the wrong location.

Here is a comparison of the two combustion cham-bers. In the top photo is the stock chamber-notice the bump in between the two intake valves. The FRPP CNC-ported head (bottom photo) does not have the high spot. We also noticed the CNC machines removed the sharp edges in the chamber, which reduces the chance of denotation.

The intake port has been opened up. Notice how it splits the port to feed both intake valves.

FRPP also cleaned up the exhaust port and smoothed out the short turn.

All components unbolt from the stock head and transfer over to the FRPP ones with ease. The cam is removed and transplanted to the new head (A). The cam control sensor (B), hydraulic lash adjusters (C), and cam followers (D) are swapped to the FRPP heads.