Cylinder Heads, Valvetrain and Valve Springs

NKA Stealth Race Head Bare or Assembled

These "STEALTH" heads are among the best in the country and are the secret behind the power of many of the top clones in the nation. These heads are completely Blue Printed and built to the max of the rule book, Valve Seats, Valve Pockets are all...

Clone/Predator Valve Spring Shim .015"

NKA AND AKRA LEGAL STAINLESS STEEL VALVE SPRING SHIMS,  .015 THICKNESS., SOLD INDIVIDUALLY

Clone/Predator Valve Spring Shim .012"

NKA AND AKRA LEGAL STAINLESS STEEL VALVE SPRING SHIMS,  .012 THICKNESS., SOLD INDIVIDUALLY

Clone/Predator Valve Spring Shim .005"

NKA AND AKRA LEGAL STAINLESS STEEL VALVE SPRING SHIMS,  .005 THICKNESS., SOLD INDIVIDUALLY

BSP Clone/Honda Race Intake Valve (-.040+/- Retainer Height)

BSP Clone/Honda GX160/200 Performance Intake Valve. These Valves have a lower retainer height allowing for the use of less shims or to allow you to obtain the correct spring height on heads with sunk valves. Intake Valves are apprx. .040 +/- shorter.

Clone Pushrod Guide Plate

Clone Pushrod Guide Plate

BSP Clone/Honda Race Exhaust Valve (-.010+/- Retainer Height)

BSP Clone/Honda GX160/200 Performance Exhaust Valve. These Valves have a lower retainer height allowing for the use of less shims or to allow you to obtain the correct spring height on heads with sunk valves. Exhaust Valves are apprx. .010 +/- shorter.

6.5 Clone Rocker Arm "square tip"

6.5 Clone Rocker Arm "square tip"

Lifter for 6.5 Clone

Lifter for 6.5 Clone

Clone Lash Cap

Lash Cap for 6.5 Clone

Exhaust Valve Spring Retainer

Exhaust Spring Retainer for 6.5HP Clone

Intake Valve Spring Retainer

Intake Spring Retainer for 6.5HP Clone