FLOTEK 305-6058 Features:

FLOTEK 320cc big block Chevy cylinder heads are a powerful addition to your build right out of the box! They feature a thick deck design and high-capacity water jackets, making them a reliable option for street or strip applications. The heads can be used with stock pistons and feature raised valve cover rails (exhaust port location is raised 0.500 in.). FLOTEK 320cc BBC cylinder heads are a great choice for adding horsepower! Note: Cylinder heads are sold individually.

Specifications:

• Combustion Chamber Volume (cc): 133
• Intake Runner Volume (cc): 320cc
• Exhaust Runner Volume (cc): 128cc
• Cylinder Head Style: Assembled
• Cylinder Head Material: Cast Aluminum
• Camshaft Style: Solid Roller
• Intake Port Shape: Rectangular
• Intake Valve Diameter (in.): 2.250 in.
• CNC-Machined Combustion Chamber: No
• CNC-Machined Intake Runner: No
• CNC-Machined Exhaust Runner: No
• Combustion Chamber Style: Heart
• Intake Port Location: Standard
• Exhaust Port Shape: Oval
• Exhaust Port Location: Raised
• Spark Plug Style: Angle
• Intake Valves Included: Yes
• Exhaust Valves Included: Yes
• Exhaust Valve Diameter (in.): 1.880 in.
• Valve Springs Included: Yes
• Maximum Valve Lift (in.): 0.750 in.
• Outside Diameter of Outer Spring: 1.620 in.
• Damper Spring Included: Yes
• Number of Springs Per Valve: Dual
• Retainers Included: Yes
• Retainer Material: Chromoly Steel
• Locks Included: Yes
• Lock Style: 7 Degree
• Valve Stem Seals Included: Yes
• Valve Stem Seal Style: Positive Stop
• Rocker Arm Studs Included: Yes
• Rocker Arm Nut Thread Size: 7/16 in.-20
• Rocker Arms Included: No
• Rocker Arm Nuts Included: No
• Guideplates Included: Yes
• Guideplate Pushrod Size: 3/8 in.
• Valve Cover Mounting Style: Perimeter Bolt
• Accessory Bolt Holes Drilled: Yes
• Intake Valve Angle: 24/4
• Exhaust Valve Angle: 15/4
• Valve Guides Included: Yes
• Valve Guide Material: Manganese Bronze
• Valve Seats Machined: Yes
• Valve Seat Machine Style: 3-Angle
• Valve Seat Material: Powdered Metal
• Cylinder Head Finish: Natural
• Steam Holes Drilled: No
• Oiling Style: Through Pushrod
• Machined for O-Ring: No
• Heat Crossover: No
• Remanufactured: No
• Quantity: Sold Individually

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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