Description

The vision is for Kelford Cams to be known as one of the best in the camshaft industry, to be recognised worldwide for manufacturing high quality, high performance camshafts for the motorsport industry. We are a small company that, since 1968 has specialised in custom camshafts to suit the individual requirements of each racer. We have a vast knowledge of engine combinations for all types of motor sport and we know how to match camshafts to engine and vehicle requirements. All of our cams are manufactured in-house using ultra-modern design systems and ground using masterless CNC grinders with CBN cutting wheel technology for superior quality and consistency.

  • 258/264 Degree advertised duration, 10.50mm lift cams.
  • Cams for fast street engines with stock or small turbocharger, or restrictor plate rally engines up to 8000 RPM and 25lb boost with our recommended valve springs.

Specifications

Engine Make: Engine Model: Part Number:
MITSUBISHI 4G63-EVO 4-7 4-TX258
Valve Clearance: Intake: Set at the
  Exhaust: Set at the
 
Cam Lift:   Intake: 6.07mm Exhaust: 6.07mm
Rocker Ratio:   Intake: 1.73 Exhaust: 1.73
Nett Valve Lift:   Intake: 10.50mm Exhaust: 10.50mm
Advertised Duration @ 0.10mm Intake: 258 Exhaust: 264
Duration @ 1.00mm VALVE LIFT Intake: 208 Exhaust: 220
Timing @ 1.00mm VALVE LIFT IVO: 3 ATDC EVO: 41 BBDC
    IVC: 31 ABDC EVC: 1 BTDC
Suggested Centre Lines:   Intake: 107 Exhaust: 111
VALVE Lift @ TDC Intake: 0.81mm Exhaust: 0.96



Compatibility

  • 1996-2002 Mitsubishi Evo 4-7 4G63

The vision is for Kelford Cams to be known as one of the best in the camshaft industry, to be recognised worldwide for manufacturing high quality, high performance camshafts for the motorsport industry. We are a small company that, since 1968 has specialised in custom camshafts to suit the individual requirements of each racer. We have a vast knowledge of engine combinations for all types of motor sport and we know how to match camshafts to engine and vehicle requirements. All of our cams are manufactured in-house using ultra-modern design systems and ground using masterless CNC grinders with CBN cutting wheel technology for superior quality and consistency.

  • 258/264 Degree advertised duration, 10.50mm lift cams.
  • Cams for fast street engines with stock or small turbocharger, or restrictor plate rally engines up to 8000 RPM and 25lb boost with our recommended valve springs.
Engine Make: Engine Model: Part Number:
MITSUBISHI 4G63-EVO 4-7 4-TX258
Valve Clearance: Intake: Set at the
  Exhaust: Set at the
 
Cam Lift:   Intake: 6.07mm Exhaust: 6.07mm
Rocker Ratio:   Intake: 1.73 Exhaust: 1.73
Nett Valve Lift:   Intake: 10.50mm Exhaust: 10.50mm
Advertised Duration @ 0.10mm Intake: 258 Exhaust: 264
Duration @ 1.00mm VALVE LIFT Intake: 208 Exhaust: 220
Timing @ 1.00mm VALVE LIFT IVO: 3 ATDC EVO: 41 BBDC
    IVC: 31 ABDC EVC: 1 BTDC
Suggested Centre Lines:   Intake: 107 Exhaust: 111
VALVE Lift @ TDC Intake: 0.81mm Exhaust: 0.96



  • 1996-2002 Mitsubishi Evo 4-7 4G63

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