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Dart SHP Special High Performance Cylinder Heads 127221

Cylinder Head, SHP, Aluminum, Assembled, 72cc Chamber, 180cc Intake Runner, Chevy, 327, 350, 400, Each

Estimated Ship Date: Tomorrow Would you rather pick it up? Select Location

  • The part DRT-127221 will have additional shipping charges due to its size. These charges will be shown in the shopping cart and checkout.

Brand: Dart
Manufacturer's Part Number: 127221
Part Type: Cylinder Heads
Summit Racing Part Number: DRT-127221

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 72
CNC-Machined Combustion Chamber: No
Intake Runner Volume (cc): 180cc
Exhaust Runner Volume (cc): 75cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Location: Standard
Spark Plug Style: Straight
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.020 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.520 in.
Outside Diameter of Outer Spring (in): 1.250 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: Umbrella
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 3/8-24 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size: 5/16 in.
Valve Cover Mounting Style: Center and perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Valve Guides Included: Yes
Valve Guide Material: Manganese bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 5-angle intake/2-angle exhaust
Valve Seat Material: Powdered metal
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold individually.
Notes: Hydraulic flat tappet applications.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These Dart SHP Special High Performance cylinder heads are designed to provide an affordable option to those looking for the weight savings of aluminum heads for a performance street engine. They are manufactured from A356-T6 aluminum and are designed to work with most off-the-shelf components. These SHP cylinder heads are available with your choice of 64cc or 72cc combustion chambers and come in both 180cc and 200cc intake runner ports that are precision-cast and designed to offer excellent flow and power without the need for CNC-machined porting. They feature optimized chambers for increased combustion efficiency and multi-angle intake seats. The cylinder heads' radiused exhaust seats dramatically increase their performance and the manganese bronze valve guides increase their life.

Warranty

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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