CYLINDER HEADS
Dart Pro 1 Aluminum Heads The Pro 1 cylinder head incorporates Pro Stock air flow technology with small, high velocity runners. Accepts off-the-shelf rocker arms, pistons, manifolds and headers. Available with 200cc, 215cc, 227cc or 230cc intake runners. Sold individually, with a multi-angle perfor- mance valve job and bronze wall valve guides. Chevy Small Block 283-400 (Cont.)
Intake Runner
Comb. Chamber
Plug Angle
Valve Angle
Intake Valve
Exhaust Valve
Part No.
Description
DRT11310010P
Bare
200cc
64cc Angle 23° 64cc Angle 23°
2.020" 1.600" 2.020" 1.600" 2.020" 1.600" 2.020" 1.600" 2.020" 1.600" 2.020" 1.600" 2.050" 1.600" 2.050" 1.600" 2.020" 1.600"
DRT11311112P Assembled, Aluminum, 1.437" Dual Spring, 130 Lbs. Seat Pressure 200cc
DRT11321111P
Assembled, 1.250" Single Spring 120lbs. Seat Pressure
200cc
64cc Straight 64cc Straight
23° 23°
DRT11321112P Assembled, Aluminum, 1.437" Dual Spring, 130 Lbs. Seat Pressure 200cc
DRT11410010P DRT11320010P DRT11510020P DRT11511123P DRT11620020P DRT11970040P
Bare,Aluminum
200cc 200cc 215cc 215cc 215cc 227cc 227cc 230cc 230cc 230cc 245cc 245cc
72cc Angle 23°
Bare Bare
64cc Straight
23°
64cc Angle 23° 64cc Angle 23°
Assembled
Bare
72cc Straight
23°
Bare, CNC
64cc Angle 23° 2.080" 1.600" 64cc Angle 23° 2.080" 1.600" 64cc Angle 23° 2.080" 1.600" 64cc Angle 23° 2.080" 1.600"
DRT11971143P Assembled, CNC, 1.550" Dual Spring, 215 Lbs. Seat Pressure
DRT11710040P DRT11711143P
Bare, Pro-1
Assembled, 1.550" Dual Spring, 215 Lbs. Seat Pressure
DRT11721143P Assembled, CNC, 1.550" Dual Spring, 215 Lbs. Seat Pressure
64cc Straight
23° 2.080" 1.600"
DRT11980060P DRT11981163P
Bare
66cc Angle 23° 66cc Angle 23°
2.100" 1.600" 2.100" 1.600"
Assembled, 1.550" Dual Springs, 215 Lbs. Seat Pressure
Dart PRO 18 Degree Aluminum Heads Maximum competition, comp/modified drag racing, circle track, Over 7,000 RPM, high com- pression. Reshaped, raised intake ports, optimizing the combustion chambers increases both airflow and combustion efficiency producing more power..
Intake Runner
Comb. Chamber
Plug Angle
Valve Angle
Intake Valve
Exhaust Valve
Part No.
Description Bare - CNC Bare - CNC
DRT11992010 DRT11992030
245cc 245cc
66cc 66cc
Angle 18° Angle 18°
2.150" 1.600" 2.180" 1.600"
Dart Iron Eagle & Pro 1 Aluminum Head Parts Kits Dart’s Parts Kits include valves, springs, steel retainers, locks, guide plates, studs and seals. Sold as one kit per cylinder head. Part No. Description Valve & Spring Size Seat Pressure Coil Bind DRT28111000 SB Chevy Parts Kit - (1) Head 2.02"/1.60", 1.250" Single Spring 120Lbs @ 1.700" 1.170" DRT28112000 SB Chevy Parts Kit - (1) Head 2.02"/1.60", 1.437" Dual Spring 130Lbs @ 1.800" 1.080" DRT28212000 SB Chevy Parts Kit - (1) Head 2.05"/1.60", 1.437" Dual Spring 130Lbs @ 1.800" 1.080" DRT28223000 SB Chevy Parts Kit - (1) Head 2.05"/1.60", 1.550" Dual Spring 215Lbs @ 1.900" 1.200" DRT28423000 SB Chevy Parts Kit - (1) Head 2.08"/1.60", 1.550" Dual Spring 215Lbs @ 1.900" 1.200" Dart Iron Eagle & Pro 1 Aluminum Head Valve Guides Offered as replacement for Iron Eagle cylinder heads, valve guides are sold each. Part No. Size Material DRT63111201 1.950" x .502" OD x 11/32" Phosphorous Bronze DRT63111210 1.950" x .439" OD x 11/32" Phosphorous Bronze DRT63121104 3.000" x .502" OD x 5/16" Manganese Bronze DRT63121201 1.950" x .502" OD x 11/32" Manganese Bronze DRT63121202 2.100" x .502" OD x 11/32" Manganese Bronze DRT63121203 2.250" x .502" OD x 11/32" Manganese Bronze DRT63121210 1.950" x .439" OD x 11/32" Manganese Bronze DRT63111201
DRT28112000
2018 ENGINE BUILDER CATALOG
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