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, 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.
• 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): 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® 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