Aluminum Assembled Cylinder Head - GM LS Compatible - 259cc

Overview:

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, 70cc 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.

• 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): 70cc
• 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庐 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!