Bare Aluminum Cylinder Head for GM LS LS1 / LS2 / LS3 / LS6 / LS7 / 4.8L / 5.3L / 6.0L / 6.2L Vortec 215cc/60cc - Build-Your-Own Ready, Machined for Performance Springs and - Speedmaster PCE281.1794

Brand:SpeedmasterPart Number:PCE281.1794Part Type:Cylinder Head [Bare]Cylinder Head Style:BareCylinder Head Material:AluminumCylinder Head Finish:NaturalCombustion Chamber Volume (cc):60 ccCNC-Machined Combustion Chamber:NoIntake Runner Volume (cc):215 ccExhaust Runner Volume (cc):n/aCNC-Machined Intake Runner:NoCNC-Machined Exhaust Runner:NoIntake Port Shape:CathedralIntake Port Location:StandardExhaust Port Shape:OvalExhaust Port Location:StandardComp. Valve Job:NoIntake Valves Included:NoIntake Valve Diameter (in):2.050 in.Exhaust Valves Included:NoExhaust Valve Diameter (in):1.600 in.Valve Springs Included:NoDamper Spring Included:NoRetainers Included:NoLocks Included:NoValve Stem Seals Included:NoRocker Arm Studs Included:NoRocker Arms Included:NoRocker Arm Nuts Included:NoGuideplates Included:NoValve Cover Mounting Style:Perimeter BoltAccessory Bolt Holes Drilled:YesIntake Valve Angle:15 deg.Exhaust Valve Angle:15 deg.Valve Guides Included:YesValve Guide Material:SteelValve Seats Machined:YesValve Seat Machine Style:3-angleValve Seat Material:Ductile ironSteam Holes Drilled:NoOiling Style:Through pushrodMachined for O-Ring:NoHeat Crossover:NoQuantity:Sold individually.Notes:High flow "as cast" version of our CNC ported cylinder head.

• [BUILD IT YOUR WAY] Bare aluminum cylinder head ready for your spring, valve, and retainer choice. 215cc intake / 60cc chamber spec for high-flow performance on GM LS.
• [FITS GM LS LS1 / LS2 / LS3 / LS6 / LS7 / 4.8L / 5.3L / 6.0L / 6.2L Vortec] Standard-deck OEM bolt pattern. Verify pushrod length and intake port match. Designed for stud-mount rocker conversion.
• [PRECISION MACHINED] CNC-ported intake/exhaust runners, hardened seats, machined for screw-in studs and guide plates. Ready for assembly with your component choice.
• [ALUMINUM ADVANTAGES] Lighter than iron, dissipates heat faster, reduces detonation risk under boost or high compression. Premium-grade casting for race or street use.
• [SOLD INDIVIDUALLY] One bare cylinder head per order. Buy two for a complete pair. Springs, retainers, locks, valves, guides, and rockers sold separately.