Modern Automotive Performance
  • Air Intake
    & Exhausts
  • Drivetrain Components
  • Electronic Components
  • Engine
    & Cooling
  • Exterior
    & Lighting
  • Forced Induction
  • Fuel System
    & Additives
  • Suspension
    & Brakes
  • Do It Yourself &
  • Other Accessories
  • Cylinder Heads & Valvetrain Components

    For everything else you can do to amp up your engine, it allow comes down to combustion – and in this sense, the cylinder block is the heart of the engine. A good cylinder head and valvetrain are essential for maximizing the effectiveness of the combustion chamber and pushing air, fuel and exhaust where they need to go. Our automotive cylinder heads and valvetrain components maximize flow for performance so incredible, this chamber of secrets will seem almost wizardly.

    We offer auto cylinder heads and cylinder rebuilds that are precision-machined for maximum efficiency and usable power. Cosworth big valve cylinder heads and Tomei heads come complete with ported runners, performance valve jobs and upgraded camshafts. For Mitubishi Evo owners, MAP offers five stages of in-house cylinder head preparation, ranging from basic valve jobs and cleaning to aggressive porting and polishing for serious racers. We also offer a cylinder overbore option with multiple choices for valves, seals, guides and springs.

    If you’re looking to do your own rebuild or maintenance, our valvetrain parts run the gamut for vehicles and engines of all kinds. MAP high performance valves use an undercut stem that reduces weight for improved air/fuel flow and RPM limits. Strong seals are vital for keeping fluids and gasses contained, and Cometic head gaskets use three layers of stainless steel for long lasting protection. In our inventory, you can find camshafts, aluminum valve covers, intake valve guides, beehive valve springs and anything else you can think of for overhauling your valvetrain. We even have sprocket tools and valve spring compressors to make your rebuild easier.

    Whether you’re a professional racer or a track day enthusiast, you’ll love the power and reliability that beats in the heart of your engine when you’re done with us. From providing expert advice to testing your head rebuilds at our machine shop, we’ve been trusted to do great work at a great price for a decade and counting. Check out our selection today and feel the roar under your hood.

    Mitsubishi OEM Aluminum Valve Cover Evo X 1035A810

    $ 329.99

    You Save 17% ($ 68.93)
    5 reviews

    OEM Metal Head Gasket (Evo 8)

    $ 66.94

    You Save 23% ($ 20.23)
    No reviews

    GSC Power-Division S2 Camshafts for Evo X Dual MIVEC (701...

    $ 658.75
    On Sale

    You Save 15% ($ 116.25)
    2 reviews
    No reviews
    3 reviews

    AEM Adjustable Cam Gear (Evo 8 / 9) 23-831BK

    $ 123.19

    You Save 10% ($ 13.69)
    No reviews
    No reviews
    No reviews

    Mitsubishi OEM Valve Locks (DSM / Evo)

    $ 1.06

    You Save 23% ($ 0.32)
    1 review

    Cometic 87mm 2.4L Head Gasket (Mitsubishi Evo 8/9)

    $ 81.73
    On Sale

    You Save 10% ($ 9.08)
    No reviews
    No reviews

    Mitsubishi OEM Rocker Arm (DSM / Evo)

    $ 24.93

    You Save 23% ($ 7.54)
    No reviews

    ARP Head Stud Kit | Subaru WRX/STi / Subaru EJ2.0L & 2.5L...

    $ 205.38
    On Sale

    You Save 45% ($ 167.49)
    No reviews

    Brian Crower Valve Spring/Retainer Kit (DSM / Evo) BC0100

    $ 255.96
    On Sale

    You Save 7% ($ 20.75)
    2 reviews
    1 review
    No reviews

    Kelford Cams 214-C Camshaft (Mitsubishi 4B11 Evo X)

    $ 655.50
    On Sale

    You Save 1% ($ 4.50)
    No reviews