CNC Ported Chevy Heads

CNC Ported LS1 Heads - RHS Castings 230 CC

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Competition Components 230CC CNC Ported LS1 Heads Feature:

• ·         2.080/1.600 Ferrea 6000 series Race Valves
• ·         Fully CNC Ported Runners
• ·         CNC Machined Chambers
• ·         Hardened Springs Seats
• ·         .625 lift Beehive springs
• ·         Moly Retainers
• ·         Heat Treated Valve Locks
• ·         Viton  valve stem seals
• ·         62 CC Chambers

• LIFT	INT	EXH
  100	71	58
  200	151	114
  300	219	155
  400	261	195
  500	299	206
  600	321	213
  700	320	214

• Tested on 4.000" Bore
• No pipe on exhaust



These heads are fully CNC Ported  RHS castings. Developed specifically for 390-427 CID Naturally aspirated engines to provide maximum power and acceleration. Also works well with max effort stock stroke engines as well as Power adder combos from 346cid and up.   Every component has been selected for excellent quality and longevity. You won’t find a better quality package anywhere! Fully assembled and ready to go.

Please allow 10-14 days turnaround on these heads