GM LS Aluminum Cylinder Head - 259cc - Std. Head Bolts - Assembled

Description

• 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, 72cc combustion chambers, and 2.165" intake/1.600" exhaust valves. They're fully assembled with valve springs, retainers, locks, guideplates, studs, and seals.

  ■ 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 Valves Included: Yes
  Intake Valve Diameter (in): 2.165 in.

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): 72cc
• 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): 8 x 1.25
  Rocker Arm Nuts Included: No

Misc:

• Head Style: Assembled
• Cylinder Head Material: Aluminum
• Cylinder Head Finish: Natural
• Spark Plug Style: Standard
• Cover Mounting Style: Standard
• Steam Holes Drilled: No
  
• Oiling Style: Through Pushrod
• 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!

WARNING: Cancer and Reproductive Harm-
www.P65Warnings.ca.gov