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1.800.443.7748

Dart Pro 1 LS1 Cylinder Heads, Cylinder Head, Pro 1 LS-1, Aluminum, Assmbled., 62cc Chamber, 225cc Intake Runner, Chevy, 5.7L, 1997-2004,Each

Dart Cylinder Heads

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Dart Pro 1 LS1 Cylinder Heads, Cylinder Head, Pro 1 LS-1, Aluminum, Assmbled., 62cc Chamber, 225cc Intake Runner, Chevy, 5.7L, 1997-2004,Each

Cylinder Head, Pro 1 LS-1, Aluminum, Assmbled., 62cc Chamber, 225cc Intake Runner, Chevy, 5.7L, 1997-2004,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-11021122
Cylinder Head Style: Assembled
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: Yes
Intake Valve Diameter (in): 2.050 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.625 in.
Outside Diameter of Outer Spring (in): 1.290 in.
Damper Spring Included: No
Number of Springs Per Valve: Single
Retainers Included: Yes
Retainer Material: Steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: PC seal
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.

PART#: 11021122

Price: $960.00

Call 1.800.443.7748 during business hours to purchase this part.

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Hawkins Speed Shop
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Local: 765.962.4927

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