If you want total control over oil pressure, this adjustable oil pressure increase kit makes it possible.
Replaces the locking screw on the oil pressure adjustment piston and uses your existing original spring. Turning the locking screw clockwise compresses the spring further, increasing the pressure, while turning it anticlockwise reduces the pressure.
For engines built up to July 1969, there is only one piston locking screw, after which there are two. For engines built from August 1969 onwards, replace only the locking screw at the rear (pulley side).
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