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Assembly Instructions

High Arc Eccentric Adjustable Big Block Rockers

Bolting stands to head:
  • Stand with round base is for intake.
  • Stand with square corner base is for exhaust.
  • Finger tighten stands to head (if two length stand bolts are provided, put longer bolt with thicker stand base).
  • Attach tie bar to stands (stamped letter goes up) using 12 pt. fasteners.
  • Finger tighten tie bar bolts.
  • Torque stand bolts down (60 ft/lbs).
  • Finish tightening tie bar bolts (25 ft/lbs). Lock Tite tie bar bolts.

    • Assembling rockers to stands:
  • Slide cross shaft into rocker body. Facing the stirrup end of rocker, the hex goes towards right side. Notice the machined line on face of hex side. Dot goes above the line.
  • Set rocker shaft assembly into stand block.
  • Assemble caps to stand using socket head cap screws. I.D. marks go towards front.

    • To adjust valve lash:
  • Crack loose the cap screws. Rotating the hex on the end of the cross shaft will adjust valve lash.
  • Touch stirrup to feeler gauge (sliding the feeler gauge left to right).
  • Tighten cap screws. Valve lash tightens up .001 or .002. Compensate with a thicker feeler gauge and be right on with one adjustment.

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    Note: When installing rockers make sure push rod ball is inserted in push rod cup of rocker body properly. When valve is lashed, spin push rod with finger and thumb. This is always a good practice.