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Dart pro 1 fully assembled aluminum heads for sbc.
Head Specs:
Part# 11710040P thru 11820040P
Material: 355T6 Alum alloy
Comb Chambers: 64cc & 72cc
Intake Valve Dia: 2.08
Intake Port volume: 230cc
Intake Port Dim: 2.225 x 1.245
Int Port Location: Stock
Intake Gasket: Fel-Pro# 1206
Exh Valve Dia.: 1.600
Exh Port volume: 75cc
Exhaust Port Dim: 1.370 x 1.430 w
Exh Port Location: Stock location & bolt pattern
Exhaust Gasket: Fel-Pro# 1405
Flow, Intake: 308cfm @ .700 lift / 28
Flow, Exhaust: 207cfm @ .700 lift / 28
Head Bolts: Stock bolts can be used. We recommend ARP# 134-3601
Head Studs: ARP# 134-4001 or 234-4301 (12pt)
Manifold: Alum Single Plane Dart (opening - 1.100x 2.000) 5.500 tall
Milling: Min. 58cc = .060 (.0065 = 1cc) Flat Mill
Angle mill .125 safely / .200 = 49cc 1.5° (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° (+.050 lock & retainer)
Spark Plug: Angle or straight, .750 reach, gasketed, Autolite AR3933
Spring Pockets: 1.550 OD (.030 deeper max)
Springs: Our Assembly: 1.437D = 130# @ 1.800 / .620 max Comp 987
1.550D = 195# @ 1.900 / .690 max Comp 954
Valve Length: 5.035 (+.100) (STD 4.935 w/1.437)
Valve Stem Dia: .3415 - 11/32
Valve Train: STD SBC 3/8 or 7/16 stud mount
Valve 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 exhaust moved .030 from intake
Valve Seats: Hardened Ductile Iron, .006 press
Valve 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°-80° Exh = 37° - 45° - radius
Stud Girdle: Retains standard SBC stud location. Recommended Dart PN # 64110002
Torque: Head Bolts = 70 ft/lb
Rocker Studs = 45 ft/lb
Manifold = 35 ft/lb
Block Use: Any SBC Iron or Aluminum
Weight: 23 lbs
Order today! $1499.99 Contact Savage Performance at 813-484-5173
Dart pro 1 fully assembled aluminum heads for sbc.
Head Specs:
Part# 11710040P thru 11820040P
Material: 355T6 Alum alloy
Comb Chambers: 64cc & 72cc
Intake Valve Dia: 2.08
Intake Port volume: 230cc
Intake Port Dim: 2.225 x 1.245
Int Port Location: Stock
Intake Gasket: Fel-Pro# 1206
Exh Valve Dia.: 1.600
Exh Port volume: 75cc
Exhaust Port Dim: 1.370 x 1.430 w
Exh Port Location: Stock location & bolt pattern
Exhaust Gasket: Fel-Pro# 1405
Flow, Intake: 308cfm @ .700 lift / 28
Flow, Exhaust: 207cfm @ .700 lift / 28
Head Bolts: Stock bolts can be used. We recommend ARP# 134-3601
Head Studs: ARP# 134-4001 or 234-4301 (12pt)
Manifold: Alum Single Plane Dart (opening - 1.100x 2.000) 5.500 tall
Milling: Min. 58cc = .060 (.0065 = 1cc) Flat Mill
Angle mill .125 safely / .200 = 49cc 1.5° (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° (+.050 lock & retainer)
Spark Plug: Angle or straight, .750 reach, gasketed, Autolite AR3933
Spring Pockets: 1.550 OD (.030 deeper max)
Springs: Our Assembly: 1.437D = 130# @ 1.800 / .620 max Comp 987
1.550D = 195# @ 1.900 / .690 max Comp 954
Valve Length: 5.035 (+.100) (STD 4.935 w/1.437)
Valve Stem Dia: .3415 - 11/32
Valve Train: STD SBC 3/8 or 7/16 stud mount
Valve 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 exhaust moved .030 from intake
Valve Seats: Hardened Ductile Iron, .006 press
Valve 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°-80° Exh = 37° - 45° - radius
Stud Girdle: Retains standard SBC stud location. Recommended Dart PN # 64110002
Torque: Head Bolts = 70 ft/lb
Rocker Studs = 45 ft/lb
Manifold = 35 ft/lb
Block Use: Any SBC Iron or Aluminum
Weight: 23 lbs
Order today! $1499.99 Contact Savage Performance at 813-484-5173