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Navigate:  StoreFront / Engine Components / Valve Train / VAC - M10 & M30 Rocker Arm Shaft Locks / Collars
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VAC - M10 & M30 Rocker Arm Shaft Locks / Collars

VAC-RASC-M10 $10.99
$8.95
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Engine Type: M10, M30
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VAC - M10 & M30 Rocker Arm Shaft Locks / Collars View Enlarged Image
On M10 & M30 engines, the rocker arms are held in position by a spring. This spring can allow lateral movement of the rocker causing it to fall off the valve-stem which will result in a broken rocker and failed engine.

Our rocker arm locks eliminate this failure mode and positively locate the rocker arm on the shaft.
  • Priced each (M10 uses 8) (M30 uses 12)
  • Ideal when building a performance engine
  • Easier to install than OEM springs

VAC Tech Notes:
-These locks are not needed and will not fit the M20 engine.
-Some light modification during instalation to the casting on M30 heads is common.



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