23807 West Andrew Rd. Unit A Plainfield, IL 60585

Head Work

We specialize in aluminum cylinder head repair. This includes but is not limited to welding, repairing, rebuilding, and porting. We also repair cast iron heads using the Lock-N-Stitch process. We do seat & guide replacement. We can also do flathead V8 and 4-cylinder valve jobs. Cylinder heads can be tested on our Superflow 600 flow bench for air flow numbers. We can machine larger spring pockets for larger valves and set up spring packages. All work is performed on a Sunnen SGN1500 cylinder head machine. All angles are simultaneously cut. Valves are ground on a Sunnen VR7000 centerless valve grinder for accuracy. Cylinder heads are assembled by a cylinder head specialist with over 20 years’ experience.

Head Work

  • Clean and check for cracks, guide, and valve wear
  • Radius cut on serdi and valves cut back (V8)
  • Mill heads
  • Street Porting
  • Street/Strip porting
  • Race port & polish
  • Weld and repair aluminum heads
  • Center less grind valve for accuracy
  • Seat/guide replacement

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