WebThis is porting, valve job, and milling only! Precision Race Components LS7 CNC 265cc ported cylinder heads. Fully CNC ported LS7-based cylinder heads! (All New GM LS7 Cylinder Head Castings) When selecting your camshaft, please keep in mind that the LS7 rocker arm ratio is 1.8:1 and NOT 1.7:1 like all of the other LS-based engines! WebDart’s new PRO1 LS 12° 285cc CNC Aluminum rectangle port cylinder head for GM LS7 Compatible small block V8 engines take performance to the next level. This full CNC ported cylinder head offers higher performance and more versatility than factory designs. ... Heads are sold individually. Tech-Sheet. PRO1 LS7 12° 285cc CNC – H70. DART ...
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WebAug 21, 2024 · Dart’s 285cc, rectangle-port, LS7 -style head is near the peak of potential for a hot street cylinder head. It sports fully CNC’d ports and combustion chambers using massive 2.200 / 1.625-inch valves. This head must be used on a 4.125-inch or larger bore in order to clear the valves. But as good as the production LS7 was and is, there’s ... WebThis head offers a 13.5° valve angle paired with nitrous/boost friendly combustion chambers that fit existing pistons. This 100% CNC ported head utilizes 2.100 / 1.600 valve sizes and features newly designed 245 cc intake ports that flow over 370 cfm as well as redesigned exhaust ports that flow over 235 cfm. solidworks align part with coordinate system
PRC LS7x 285cc CNC Ported 400+CFM Heads - SD Parts
WebPrecision Race Components LS7 CNC 265cc ported cylinder heads. Fully CNC ported LS7-based cylinder heads! (All New GM LS7 Cylinder Head Castings) When selecting your … 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 … small antique hanging bookcase