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It is possible to run a 20R Head on an 85-95
laser block. In order to keep the cam and crank centerline
consistent with an 85-95 head, you must mill the 20R head to a measurement
of 3.130 (measured from the bottom of the front cam journal to the deck of
the head). Remember to re-machine the oil passage back into the deck
surface of the 20R head after milling to retain oil passage to the top of
the motor. LC Engineering can perform this service if you prefer.
Call us, then send us your head (you'll need an RGA number) or we will
supply you with one built to your specifications. |