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4L Highcompression pistons
This is a new set of 103mm Type 4 or Porsche 914 cylinders
Eliminates air flow blockage to #3 and #4 cylinders
Can be used with stock or urethane mounts
This kit requires machine work Both the heads and Case will need to be opened for the 104mm Bore
Oil Thermostat Only w/ 3/8" NPT 5-x-205 4L Highcompression pistonsMounts in line and bypasses oil cooler until oil warms up to approximately 175 degrees. Always partially open to avoid over pressurizing. A must in performance and cold weather applications. Kit comes complete with fittings and clamps.
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