69255R PWHeads Full CNC Chevrolet LS3 LSx 261cc 11 Degree Rectangle Port Aluminum Cylinder Heads Pair (bare)
Performance World 69255R PWHeads Full CNC Chevrolet LS3 LSx 261cc 11 Degree Rectangle Port Aluminum Cylinder Heads Pair (bare)
 
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Full CNC (ports and chamber) LS3 11 Degree Rectangle Port Chevrolet heads designed to fit LS large bore engines. 261cc intake runners, 68cc combustion chambers. 2.165" intake and 1.60" exhaust. Machined for 1.64" springs. Raised valve cover rails, 6-bolt per cylinder design (Fits LSX blocks too). Includes rocker arm rails for use with LS3 offset (OE style) rocker arms. SEE SPECIAL TECHNICAL NOTES REGARDING ROCKER ARMS. Manufactured from A356-T6 aluminum. Each pair comes with a detailed flow sheet. Sold bare and ready for assembly. Pair. Download Data here - DOWNLOAD CUSTOM PISTONS ARE REQUIRED DUE TO THE 11 DEGREE VALVE ANGLE!
Everyday Low Price: CDN $2,749.99

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Product Code: 69255R
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Description Technical Specs
 
Full CNC (ports and chamber) LS3 11 Degree Rectangle Port Chevrolet heads designed to fit LS large bore engines. 261cc intake runners, 68cc combustion chambers. 2.165" intake and 1.60" exhaust. Machined for 1.64" springs. Raised valve cover rails, 6-bolt per cylinder design (Fits LSX blocks too). Includes rocker arm rails for use with LS3 offset (OE style) rocker arms. SEE SPECIAL TECHNICAL NOTES REGARDING ROCKER ARMS. Manufactured from A356-T6 aluminum. Each pair comes with a detailed flow sheet. Sold bare and ready for assembly. Pair. Download Data here - DOWNLOAD NOTE: CUSTOM PISTONS ARE REQUIRED DUE TO THE 11 DEGREE VALVE ANGLE!
Optional Parts
  • 2.165" x 5.45" x 8mm Intake Valves = PW #360044
    1.60" x 5.45" x 8mm Exhaust Valves = PW #360048
    Rocker Arms: PW 369173

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