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Motors HEAD ACHE Series

A purple Head Rush engine with the decal on the recoil cover

HEAD ACHE Series

HEAD ACHE Series Clone

  • Clone 350
  • Clone 375
  • Clone Medium
  • Clone Heavy
  • Junior classes

The flagship: a clone built to the current rules with a ported head and our own HR cam, dyno-run before it leaves.

Specs
Platform196cc clone
HeadPorted to current specs
CamHR1.2 or NKA grind
RodBillet (2026 spec)
FinishPowder-coated tins, your color

Every HEAD ACHE Series engine gets a head ported to the current specs, our HR1.2 cam (or the NKA grind), the lightest legal hand-picked parts, and a run on the dyno before it goes out the door. The 2026 update adds a billet rod. Built to AKRA, NKA or WKA rules, restricted or unrestricted, for the plate classes through clone heavy. Powder-coated tins in the color of your choice. Deposit holds your spot in the build line; ask about the current lead time.

Call for pricing

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More HEAD ACHE Series builds

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