DART PRO 1 Aluminum Cylinder Heads
- 215cc runner
- 64 or 72 cc Chamber
- Straight or Angle Plug
- 1.250 single spring, 1.437 double, 1.550 double springs available
Dart 200 SBC 23
° Aluminum Cylinder HeadPart#
11310010 thru 11420050Material:
355T6 alum alloyComb Chambers:
64cc & 72ccIntake Valve Dia:
2.02" & 2.05"Intake Port volume:
200ccIntake Port Dim:
2.000" x 1.190"Int Port Location:
StockIntake Gasket:
Fel-Pro# 1205Exh Valve Dia.:
1.600" or 1.625"Exh Port volume:
75ccExhaust Port Dim:
1.375" x 1.325" wExh Port Location:
Stock location & bolt patternExhaust Gasket:
Fel-Pro# 1404 or 1405Flow, Intake:
264cfm @ .500" lift / 28"Flow, Exhaust:
180cfm @ .600" lift / 28"Head Bolts:
Stock bolts can be used. We recommend ARP# 134-3601Head Studs:
ARP# 134-4001 or 234-4301 (12pt)Manifold:
Alum Single Plane Dart (opening - 1.100"x 2.000") 5.500" tallMilling:
Angle mill .125" safely / .200" = 49cc 1.5
Min. 58cc = .060" (.0065" = 1cc) Flat Mill° (carefully)Pistons:
Most 23°aftermarket pistons.Push Rod length:
Stock thru +.100" Should always measure (Stock length = 7.800")Push rod Guide Plate:
Must use Comp Cam # 4808 (flat)Retainers:
Steel (10°) / 1.250" ( 7°)Spark Plug:
Angle or straight, .750" reach, gasketed, Autolite AR3933Spring Pockets:
1.550" OD (.030" deeper max)Springs:
1.437D = 130# @ 1.800" / .620" max Comp 987
1.550D = 195# @ 1.900" / .690" max Comp 954
Our Assembly: 1.250S = 110# @ 1.700" / .520" max Comp 981Valve Length:
Std 4.890" w/ 1.250 & 1.437 / 5.015" (+.100) w/ 1.550Valve Stem Dia:
.3415" - 11/32"Valve Train:
Std SBC 3/8" or 7/16" stud mountValve Guides:
1/2" OD Int = Mag-bronze Exh = Phos-bronze (.002" press)Valve Guide length:
1.950"Valve Guide clearance:
.0014" - .002" (with our .3415 dia. valve stem)Valve Guide Spacing:
1.890" moved .030" from stockValve Seats:
Hardened Ductile Iron, .006" pressValve Seat dim.
Int - 2.160"x 1.810" x .350" Exh - 1.650"x 1.350"x .350"Valve Seat angles:
Int = 32° - 45° - 60° - 70° Exh = 37° - 45° - radiusStud Girdle:
Use any standard girdleTorque:
Rocker Studs = 45 ft/lb
Manifold = 35 ft/lb
Head Bolts = 70 ft/lbBlock Use:
Any SBC Iron or AluminumWeight:
23 lbs
This product was added to our catalog on Saturday 26 February, 2005.