Dart Machinery SHP Aluminum Chev SB Heads
Dart's SHP cylinder heads provide a low cost option to those looking for the weight savings cost of an aluminum head for a street performance engine.
·A356-T6 aluminum alloy
·Bolt on compatibility: Standard valve angle and spacing are retained to allow use of off the shelf pistons and valve train components
·Multi-angle intake seats and radiused exhaust seats dramatically increase air/fuel flow
·Hardened exhaust seats are compatible with unleaded gasoline
·Manganese bronze valve guides extend cylinder head life
·Machined for 1.250 or 1.437 diameter valve springs
·Straight spark plug configuration
Assemblies Feature: 2.020"/1.600" 1-piece stainless steel valves, 1.437" high quality springs, retainers and keepers, guide plates and 3/8" rocker studs. Made in USA.
Part Type: Cylinder Head
Application: Dart SHP Chevrolet Small Block
Cylinder Head Material: A356-T6 Aluminum
Bare or Assembled: Assembled
Combustion Chamber Size: 64cc
CNC Machined Combustion Chambers: No
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Intake Port Volume: 180cc
CNC Machined Intake Port: No
Intake Port Flow: 248 cfm @ .500” Lift / 28”
Intake Port Location: Standard
Intake Port Shape: Rectangular
Intake Port Dimensions: 1.180” x 2.095”
Suggested Intake Gaskets: Fel-Pro 1205 or Equivalent
Exhaust Port Volume: 75cc
CNC Machined Exhaust Port: No
Exhaust Port Flow: 170 cfm @ .500” Lift/ 28”
Exhaust Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Dimensions: 1.375” x 1.325”
Suggested Exhaust Gaskets: Fel-Pro 1404 or Equivalent
Spark Plug Style: Straight
Suggested Spark Plug: .750” reach, 14mm hex
Valve Guides: Yes
Valve Guide Spacing: 1.890” moved .030” from stock
Valve Stem Diameter: 11/32” (.3415”)
Valve Seats: Yes
Valve Job: Multi-Angle
Intake Valve Diameter: 2.020"
Intake Valve Included: Yes
Exhaust Valve Diameter: 1.600"
Exhaust Valve Included: Yes
Suggested Valve Length: 4.965”
Valve Spring Pockets: 1.550” O.D. .030” deeper max.
Valve Springs Included: Yes, 1.437” Dual
Valve Spring Application: Hydraulic Flat Tappet, 130 lbs. Seat, .600” Max Lift
Valve Springs Retainers Included: Yes
Valve Locks Included: Yes (10 Degree)
Valve Seals Included: Yes
Rocker Studs Included: Yes (3/8”)
Guide Plates Included: Yes
Valve Cover Mounting Style: Perimeter
Steam Holes Drilled: No
Heat Crossover: No
Suggested Head Bolts: ARP 134-3601 or Equivalent
Suggested Head Studs: ARP 134-4001 or Equivalent
Suggested Stud Girdle: Power Products 43100K, Howards Cams™ 90100, Jomar 1104
Head Bolt Torque with Oil: 70 ft./lbs.
Rocker Stud Torque with Oil: 45 ft./lbs.
Intake Bolt Torque with Oil: 35 ft./lbs.
Manufacturer: Dart Machinery
Manufacturer's Part Number: 127122
Weight: 26 lbs. Each
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each