1964 and '66 300 V8 rocker arm shaft assembly interchangeable?

Discussion in 'Small Block Tech' started by MarkusM, Nov 5, 2018.

  1. MarkusM

    MarkusM Active Member

    Can I use the '66 rocker assembly on the '64 aluminium heads?
    The Shaft from the 64 is rough and has grooves. The 66 Shaft ist smooth.
    The rocker arms had different numbers but looks the same.
    Is there any difference, like Rocker arm ratio?
  2. Jim Nichols

    Jim Nichols Well-Known Member

    61-63 215 and 64-67 300 and 340 rocker arms and shafts all interchange. Actually the 198 and 225 V6 rocker arms interchange. Compare all the rockers for wiggle. IN and EX rockers are handed. Pushrod cups offset slightly. New steel tips are available from T/A.
  3. MarkusM

    MarkusM Active Member

    Thank you, I will clean the '66 rocker arm assembly and use it on the '64 heads.

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