SKU: PS8015
GM LS Aluminum Cylinder Head - 259cc - STD. Head Bolts - Assembled
$1,199.00
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Get big power on a small budget with BluePrint Muscle Series LS cylinder heads! These lightweight aluminum heads bolt up to your LS engine and feature 259cc intake/102cc exhaust runners, 69cc combustion chambers, and 2.165" intake/1.600" exhaust valves. They're fully assembled with valve springs, retainers, locks, guide plates, studs, and seals. Manufacturer part number -PS8015.

Features & Benefits:

  • Maximum Output for Less Money!
  • Designed and Produced by BluePrint Engines
  • Fully Assembled with Heavy Duty Components
  • Backed by Our Full 12-Month Limited Warranty

Intake:

  • Intake Runner Volume (cc): 259cc
  • Intake Port Location: Standard
  • Intake Port Shape: Rectangular
  • Intake Valves Included: Yes
  • Intake Valve Diameter (in): 2.165 in.
  • CNC-Machined Intake Runner: No

Exhaust:

  • Runner Volume (cc): 102cc
  • Exhaust Valve Diameter (in): 1.600 in.
  • Exhaust Valves Included: Yes
  • Exhaust Runner: No
  • Port Shape: Round
  • Exhaust Port Location: Standard

Combustion Chamber:

  • Combustion Chamber Volume (cc): 69cc
  • CNC-Machined Combustion Chamber: No

Valve Specs:

  • Maximum Valve Lift (in): .650 in.
  • Intake Valve Angle: 12 Degrees (3 degrees rolled)
  • Exhaust Valve Angle: 12 Degrees (3 degrees rolled)
  • Valve Guides Included: Yes
  • Valve Guide Material: Manganese Bronze
  • Valve Seats Machined: Yes
  • Valve Seat Machine Style: 5-Angle
  • Valve Seat Material: Chrome Nickle
  • Valve Stem Seals Included: Yes
  • Valve Stem Seal Style: Viton® Fluoroelastomer

Springs:

  • Valve Springs Included: Yes
  • Spring Pressure Open: 360-380 @ 1.150
  • Spring Pressure Closed: 125-135 @ 1.800
  • Outside Diameter of Outer Spring (in): 1.295 in.
  • Damper Spring Included: Yes
  • Number of Springs per Valve: Dual
  • Retainers Included: Yes
  • Retainer Material: Chromemoly Steel
  • Locks Included: Yes
  • Lock Style: 7 Degree

Pushrods:

  • Rocker Stands Included: Yes

Rocker Arms:

  • Rocker Arm Studs Included: No
  • Rocker Arms Included: N/A
  • Rocker Arm Nut Thread Size (in): N/A
  • Rocker Arm Nuts Included: No

Guide Plate:

  • Guide Plate Included: No
  • Guide Plate Pushrod Size: N/A

Misc:

  • Head Style: Assembled
  • Cylinder Head Material: Aluminum
  • Cylinder Head Finish: Natural
  • Spark Plug Style: Standard
  • Cover Mounting Style: Standard
  • Steam Holes Drilled: No
  • Camshaft Style: Hydraulic Roller
  • Oiling Style: Through Pushrod
  • Valve Cover Mounting Style: Center Bolt
  • Accessory Bolt Holes Drilled: Yes
  • Machined for O-Ring: No
  • Heat Crossover: No
  • 10mm Accessory Bolt Holes Machined on Ends of Heads

Qty:

  • Sold Individually

Warranty:

  • Backed by our full 12-month limited warranty!

Note:

  • The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM. Replacement or modifications of OEM Exhaust manifolds may be required. 

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