Page 154 - 2018 Racecar Engineering Engine Parts and Accessories Catalog

CYLINDER HEADS

Chevy Small Block 283-400 (Cont.)

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.
Intake Comb. Plug Valve Intake Exhaust
Part No. Description Runner Chamber Angle Angle Valve Valve
DRT11310010P Bare 200cc 64cc Angle 23° 2.020" 1.600"
DRT11311112P Assembled, Aluminum, 1.437" Dual Spring, 130 Lbs. Seat Pressure 200cc 64cc Angle 23° 2.020" 1.600"
DRT11321111P Assembled, 1.250" Single Spring 120lbs. Seat Pressure 200cc 64cc Straight 23° 2.020" 1.600"
DRT11321112P Assembled, Aluminum, 1.437" Dual Spring, 130 Lbs. Seat Pressure 200cc 64cc Straight 23° 2.020" 1.600"
DRT11410010P Bare,Aluminum 200cc 72cc Angle 23° 2.020" 1.600"
DRT11320010P Bare 200cc 64cc Straight 23° 2.020" 1.600"
DRT11510020P Bare 215cc 64cc Angle 23° 2.050" 1.600"
DRT11511123P Assembled 215cc 64cc Angle 23° 2.050" 1.600"
DRT11620020P Bare 215cc 72cc Straight 23° 2.020" 1.600"
DRT11970040P Bare, CNC 227cc 64cc Angle 23° 2.080" 1.600"
DRT11971143P Assembled, CNC, 1.550" Dual Spring, 215 Lbs. Seat Pressure 227cc 64cc Angle 23° 2.080" 1.600"
DRT11710040P Bare, Pro-1 230cc 64cc Angle 23° 2.080" 1.600"
DRT11711143P Assembled, 1.550" Dual Spring, 215 Lbs. Seat Pressure 230cc 64cc Angle 23° 2.080" 1.600"
DRT11721143P Assembled, CNC, 1.550" Dual Spring, 215 Lbs. Seat Pressure 230cc 64cc Straight 23° 2.080" 1.600"
DRT11980060P Bare 245cc 66cc Angle 23° 2.100" 1.600"
DRT11981163P Assembled, 1.550" Dual Springs, 215 Lbs. Seat Pressure 245cc 66cc Angle 23° 2.100" 1.600"

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 Comb. Plug Valve Intake Exhaust
Part No. Description Runner Chamber Angle Angle Valve Valve
DRT11992010 Bare - CNC 245cc 66cc Angle 18° 2.150" 1.600"
DRT11992030 Bare - CNC 245cc 66cc Angle 18° 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 DRT28112000

Guides
Offered as replacement for Iron Eagle cylinder heads, valve guides are sold each.
Part No. Size Material
DRT63111201
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

2018 ENGINE BUILDER CATALOG 153