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Dart Aluminum 15 Degree Assembled

Dart 14372131

301-14372131

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Estimated to ship directly from the manufacturer on 06/28/18
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Dart Aluminum 15 Degree Assembled $3,141.57
Aluminum 15 Degree
  • Assembled
  • Full Porting
  • CNC Machine Valve Bowls
  • CNC Combustion Chambers
  • CNC Full Intake Port
  • CNC Full Exhaust Port
  • Intake Valve: 2.180
  • Exhaust Valve: 1.600
  • Springs: 1.550 Dual for Solid Roller

  • Specifications:

    Manufacturer's Part Number:
    14372131

    The Dart Machine 15 Degree Small Block Chevy Cylinder Heads offer a dramatic performance improvement over conventional 23 Degree designs.The Dart engineering staff reduced the valve angle, reshaped the intake ports and optimized the combustion chambers to produce a significant increase in both airflow and combustion efficiency!Features:

    • Aluminum Alloy: C355-T61
    • Intake Port Volume: 284cc
    • Chamber Volume: 48cc
    • Angle Plug Design
    • Intake Valve Size: 2.150 or 2.180
    • Exhaust Valve Size: 1.600 or 1.625
    • Recommended Intake Manifold: 301-42711000
    • Sold Individually (Bare or Assembled)

    What do these heads flow? Intake and exhaust?

    Asked by: D J W
    This is the list of specs that are available; Part# 14372010 - 14382040 Material: 355-T61 alum alloy Comb Chambers: 51cc - Tit valve w/CNC Intake Valve Dia: 2.150", 2.180", 2.200" Intake Port volume: Full Port 276cc - STD 281cc - large Intake Port Dim: 2.200"x 1.360"- STD 2.280" x 1.360" - large Int Port Location: Raised, 5° Intake face (stock = 10°) Intake Gasket: Mr. Gasket# 143 Exh Valve Dia.: 1.600" or 1.625" Exh Port volume: Full Port 111cc - STD 113cc - large Exhaust Port Dim: Full Port 1.720"w x 1.600"t - STD Exh Port Location: Raised & spread port, GM & Stahl spread pattern Exhaust Gasket: Fel-Pro 1407 Flow, Intake: (F/P STD) - 392 cfm @ .700 lift / 28" Flow, Exhaust: (F/P STD) - 263 cfm @ .800 lift / 28" Lifters: .180" offset required Manifold: Dart 18° single plane, 5° face Milling: Min. 38cc / .065" (.0065" = 1cc) Flat mill only. Pistons: Most 15°aftermarket pistons. Push Rod: Should always measure (Clearance not machined) Retainers: Titanium (10 deg) Rocker Arms: Shaft Rocker Assemblies for Dart 18º SBC head Spark Plug: Angled .750" reach, gasketed. Spring Cups: 1.550" - ID locator Spring Pockets 1.550" OD (.030" deeper max) can go to 1.625" but no deeper Springs: Our Assembly: 1.550D = 215# @ 1.950" / .680" max 1.550D = 235# @ 1.950" / .750" max Studs, head: Dart 18° stud kit w/ (4) 3/8"x 7/16" step studs Dart# 66110012 Valve Angles: 15° Valve Length: 5.550" (+.600") .250" tip Valve Stem Dia: .3415" - 11/32 or 5/16 Valve Train: 1.6/1.55 Jesel (In .550"/Ex .220" off) or T&D (In .550"/Ex .170" off) Valve Guides: 1/2" OD Mag - bronze Cut for .530" PC seals (.002" press) Valve Guide length: 2.250" Valve Guide clearance: .0014" - .0020" (with our .3415 dia. valve stem) Valve Guide Spacing: 1.935" Valve Seats: Ductile Iron or Copper-Beryllium, .006" press Valve Seat dim. Int. - 2.250" x 1.850" x .375" Ex. - 1.680" x 1.350" x .375" Valve Seat angles: Int = 38°- 45°- 60°- 70°- 80° Exh = 38°- 45°- Radius Torque: Head Studs = 70 ft/lb (3/8"= 50 ft/lb) Manifold = 35 ft/lb Block Use: Any SBC Iron or Aluminum Weight: 27 lbs bare – 32 lbs assembled Notes: Fuel Injection down nozzle bosses provided
    Answered by: Rusty B
    Date published: 2018-05-24
    • y_2018, m_6, d_20, h_24CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_10001_10001_907029, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
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    Some parts are not legal for use in California or other states with similar laws / regulations