harley davidson
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Twin Cam Head

  • Accepts oversize or s.t.d.valve sizes
  • Intake ports 100% c.n.c. machined
  • Exhaust ports 100% c.n.c. machined

Valve lift

.100”

.200”

.300”

.400”

.450”

Intake c.f.m.

98

196

274

295

300

E xhaust c.f.m

92

163

206

219

223

cylinder heads