MAP SPEC Cylinder Head – Stage 1 | 2003-2005 Mitsubishi Evo 8 4G63

MAP sought out the most reliable, proven power supporting components and combined them with our high horsepower tested techniques to develop our new MAP Spec Performance Cylinder Heads.

All parts are precision inspected and installed using only the most exacting measuring techniques and state of the art equipment.

Why Choose MAP Machining Services?

We utilize a Serdi seat and guide machine that provides us with some of the industry’s finest valve jobs. We not only cut seats for the non performance market, but have also designed specific cutters that we use in all our modern 4 valve heads. Every head is also vacuum checked after each seat is cut to ensure that no head leaves with a poor sealing valve. We would then typically set and adjust the installed valve tip height to our specs to ensure proper valve train geometry is maintained.

We also have a resurfacing machine that provides a superior RA, or finish, on both cast and aluminum blocks and heads, which is crucial for proper head gasket sealing in modern engines. Ours uses the CBN cutters and provides a superior finish to the older, multi-cutter systems that many shops still use.

MAP Spec 4G63 Heads Features

• Good Used JDM Evo 8 Cylinder Head
• Clean / Hot Tank
• Visual Evaluation / Inspection
• Deck Resurface to High Performance RA Specs
• Proprietary MAP 5 Angle Radius Valve Job
• MAP Spec CNC Porting
• Final Assembly
• Outbound Shipping via Fedex Ground service

Applications

• 2003-2005 Evo 8 4G63

What’s in the box?

• 1 MAP SPEC Cylinder Head