Patriot Performance 190cc SBC

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Patriot Performance 190cc SBC Freedom Series Straight Plug Heads Assembled #2181 Patriot have taken their "As-Cast" Freedom Series 185cc heads, perform our 5 angle 2.02"/1.60" valve job, CNC Bowl Blend & Gasket Match to promote flow. This yields a great flowing 190cc runner. To this we add only the highest quality 21-4N 2.02"/1.60" stainless valves, .575" lift (hyd. flat tappet) springs, steel retainers, 3/8" studs, bronze guides, and guideplates. These heads are a great addition to engine builds up to 383 CI. Sold as Pair. Technical Specs: Combustion Chamber: 64cc Intake Runner: 190cc Exhaust Runner: 62cc Intake Valve: 2.02" Exhaust Valve: 1.60" Max. Valve Spring Lift: 0.575" Spring Pressure Closed: 115 lbs. @ 1.800" Spring Pressure Open: 310 lbs. @ 1.225" Retainer Material: Steel Valve Seal Material: Viton Valve Guide Material: Manganese Bronze Valve Job: 5-angle Cost: $895

Promar Reserves the right to change manufacturers and specs without notice. HP and TQ ratings are based on actual results on a engine dyno with open headers in controlled environment tuned for maximum performance.