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Product Details

Jims Manual Compression Release Valves

Features:

  • Give your starter a hand by installing these in your high-compression, big-inch motor
  • These need to be installed by an experienced mechanic/machinist
  • Can be installed in all Big Twin, XL and Buell motors
  • Fits dual-plug heads or heads that have been machined for dual plugs
  • Requires a 10mm x 1.0mm drilled and tapped hole in your cylinder head for use
  • Made in the USA
Made in the USA
Product Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style M10 Thread J&P Cycles Item #10248801 Catalog Number380-346 Store Sku MFR. Product #727K/727k AvailabilityIn Stock: Ships within 24 hours
Fitment Notes & Exceptions
  • For 10mm threaded Dual plug heads, or heads that have been machined for a compression release.
Product Description
Part Numbers
Fitment
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