Dart Pro 1 LS1 Cylinder Heads, Cylinder Head, Pro 1, Aluminum, Bare, 62cc Chamber, 225cc Intake Runner, Chevy, LS1, Each
Dart Cylinder Heads
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Cylinder Head, Pro 1, Aluminum, Bare, 62cc Chamber, 225cc Intake Runner, Chevy, LS1, Each Upgraded cylinder heads for your LS1.
Dart calls these Pro 1 LS1 cylinder heads a secret weapon. Using their proprietary "Speed Flow" technology and the same aircraft-quality 355-T6 aluminum used in their Pro Stock heads, Dart has produced these affordable, yet powerful LS1-type cylinder heads. Five-axis, CNC-blended combustion chambers generate improved airflow and flame propagation, which increase both power and torque. With two available intake-port sizes that flow very well as-cast, there is a choice for strong street performance, as well as one for maximum street performance or bracket racing. These heads have extra material on top for added flexibility to upgrade the valvetrain, and they're set up for big valves with bronze valve guides and hardened seats. They're available either bare or assembled, and they're drilled for stock accessories with stock port locations, so you can use stock components. | Part Number: | DRT-11020020 | | Cylinder Head Style: | Bare | | Cylinder Head Material: | Aluminum | | Cylinder Head Finish: | Natural | | Combustion Chamber Volume (cc): | 62 | | CNC-Machined Combustion Chamber: | No | | Intake Runner Volume (cc): | 225cc | | CNC-Machined Intake Runner: | No | | CNC-Machined Exhaust Runner: | No | | Combustion Chamber Style: | Heart | | Intake Port Location: | Standard | | Exhaust Port Location: | Standard | | Intake Valves Included: | No | | Intake Valve Diameter (in): | 2.050 in. | | Exhaust Valves Included: | No | | Exhaust Valve Diameter (in): | 1.600 in. | | Valve Springs Included: | No | | Damper Spring Included: | No | | Retainers Included: | No | | Locks Included: | No | | Valve Stem Seals Included: | No | | Rocker Arm Studs Included: | No | | Rocker Arms Included: | No | | Rocker Arm Nuts Included: | No | | Guideplates Included: | No | | Valve Cover Mounting Style: | Centerbolt | | Accessory Bolt Holes Drilled: | Yes | | Valve Guides Included: | Yes | | Valve Guide Material: | Manganese bronze | | Valve Seats Machined: | Yes | | Valve Seat Machine Style: | 4-angle intake/3-angle exhaust | | Valve Seat Material: | Powdered metal | | Steam Holes Drilled: | No | | Oiling Style: | Through head | | Machined for O-Ring: | No | | Heat Crossover: | No | | Quantity: | Sold individually. | |
