MMR Stage 3 Ported 3V Cylinder Heads


MMR Stage 3 Ported 3V RACING Cylinder heads MMR Stage 3 ported and polished cylinder heads feature 306/222 CFM Ports, gain 45-50 More HP on stock applications and up to 80 more HP on Forced induction applications. These heads utilize hand ported and polished intake and exhaust ports, with Manley Nextec Racing Valve springs. Heads include custom machined factory intake valves & Custom machined factory exhaust valves multi axis competition valve job, fully assembled (no cams, lifter or rockers) No core required! NO CORE CHARGE! MMR guarantees more power than the competition or your money back! MMR USES BRAND NEW HEADS-ASK OUR COMPETITION IF THEY DO THE SAME!

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  • Model: 900983
  • Manufactured by: MMR

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