WebSep 24, 2015 · Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being “old-tech.” However, their thin cross-section allows for a high-velocity and smaller-volume runner design with excellent flow. For a street car, this design means excellent throttle response, torque and average power. Dyno tests have proven that … WebOpen or Closed Combustion Chambers Big-block heads all had closed combustion chambers, or bathtub-shaped chambers, when the engine was introduced in the mid …

Pit Stop: Edelbrock 100cc Big-Block Oval-Port Heads—A ... - MotorTrend

WebA group that advocates for right-to-work laws is weighing in on a labor dispute at the Leatherman Terminal, saying a federal ruling that gives a dockworkers' union the right to Web315-cc rectangular intake ports Replacement head for P/N 14011076 Machined for 2.250"/1.880" 11/32" valve stems 110-cc exhaust ports 118-cc combustion chambers … lock trolling motor

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WebJan 14, 2012 · Why would you want a closed chamber head? AFR 265's will flat mill to 98 With the CNC chamber they will flat mill to 104 So will the 290's (104) Both come standard with 107 as cast & 112 with the CNC chamber Brodix … WebAug 8, 2001 · Ricks68RS. Open chamber heads have a numerically higher 'cc' volume than closed chamber heads do. Open chamber heads, the chamber looks sort of heart shaped and the intake ports are usually oval shaped. Closed chamber heads, the chamber looks sort of peanut shaped and the intake ports are usually rectangular shaped. WebAFR’s 265cc “As Cast” heads are the cost effective performance choice over re-worked factory heads. They feature partially CNC ported intake, exhaust & chambers, A356 … indigenous time at sea