- 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, 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 Runner Volume (cc): 259cc
- Intake Port Location: Standard
- Intake Valves Included: Yes
- Intake Valve Diameter (in): 2.165 in.
- 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 Volume (cc): 72cc
- CNC-Machined Combustion Chamber: No
- 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
- 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
- Rocker Stands Included: Yes
- 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
- 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
- Backed by our full 12-month limited warranty!