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Pin Retention: SpiroLox
  • All ROSS Stocking pistons (except for the Late Model Stock Car Class) are manufactured for use with SpiroLox.
  • Unless otherwise specified, custom pistons will be manufactured for SpiroLox use also.
  • To order additional lox, simply supply us with your pin diameter and lox width you need.
PART #
PIN DIAMETER
FREE DIAMETER
WIDTH
RACER PRICE

(Each)
4004-M  0.707  0.807  0.039  0.87  Buy Now
4004-J  0.750  0.840  0.042  0.87  Buy Now
4004-H  0.787  0.873  0.042  0.87  Buy Now
4004-B  0.827  0.931  0.042  0.87  Buy Now
4004-L  0.867  0.943  0.042  0.87  Buy Now
4004-D  0.890  1.013  0.042  0.87  Buy Now
4004-E  0.975  1.080  0.042  0.87  Buy Now
4004-F  1.020  1.138  0.050  0.87  Buy Now
4004-G  1.080  1.205  0.050  0.87  Buy Now
4004-K  1.160  1.271  0.050  0.87  Buy Now
4004-N  1.190  1.339  0.050  0.87  Buy Now
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