Overhaul Solutions Limited.

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Unleaded Cylinder Head Conversions

Reconditioned Unleaded Cylinder Heads
Used Triumph Cylinder Heads
Reconditioned Unleaded Cylinder Heads

Unleaded Cylinder Head Conversions, Tuning, Reconditioning And Repairs.  

Our fully equipped machine shop covers all aspects of cylinder head reconditioning, overhaul, tuning, unleaded conversions and general repairs for most classic and modern cars, plant and machinery.

We can supply cylinder heads reconditioned as an outrite sale, customer supplied unit or on exchange basis as we hold a stock of Triumph, Mg, Mini and Ford heads to be reconditioned.

All cylinder heads hold 12 months warranty. 

Please visit our online shop for great deals and prices on reconditioned units. Or contact us for a fast free quotation.

 Typical example of the process involved on recon/unleaded conversion Based on a Triumph Gt6 Mk3 6 Cylinder.

  • Full strip down for assessment and pre machining checks.
  • Chemical dip to remove all dirt, paint, oil etc.
  •  24hr SafteyKleen dip to remove all rust from waterways.
  • Valve guide removal, replace with new and ream to size.
  • Full Head skim inc inlet, exhaust and water pump face.
  • Valve seat removal and replace with hardened seats. 
  • Valve seat cut to correct angle and grind.
  • Full clean and reassemble with new valves, springs and core plugs.
  • Final checks and paint. 
Cylinder Head Machining
Triumph Unleaded Cylinder Head
Detroit Engine rebuild