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Part number: 11521122P
Product Details
Dart 11521122P Pro 1 High Performance Cylinder Head, 215cc
Products specifications
Accessory Bolt Holes Drilled Yes
Calculator Compression Calculator
CNC-Machined Combustion Chamber No
CNC-Machined Exhaust Runner No
CNC-Machined Intake Runner No
Comb Chamber 64cc
Combustion Chamber Style Heart
Combustion Chamber Volume (cc) 64
Cylinder Head Finish Natural
Cylinder Head Material Aluminum
Cylinder Head Style Assembled
Damper Spring Included No
Exhaust Port Location Standard
Exhaust Port Shape Square
Exhaust Runner Volume (cc) 75cc
Exhaust Valve Angle 23
Exhaust Valve Diameter (in) 1.600 in.
Exhaust Valves Included Yes
Guideplate Pushrod Size 5/16 in.
Guideplates Included Yes
Heat Crossover No
Intake Port Location Standard
Intake Runner Volume (cc) 215cc
Intake Runners 215cc
Intake Valve Angle 23
Intake Valve Diameter (in) 2.050 in.
Intake Valves Included Yes
Lock Style 10 degree
Locks Included Yes
Machined for O-Ring No
Maximum Valve Lift (in) 0.620 in.
Number of Springs Per Valve Dual
Oiling Style Through pushrod
Outside Diameter of Outer Spring (in) 1.437 in.
Quantity Sold individually.
Retainer Material Steel
Retainers Included Yes
Rocker Arm Nut Thread Size 3/8-24 in.
Rocker Arm Nuts Included No
Rocker Arm Studs Included Yes
Rocker Arms Included No
Spark Plug Style Straight
Steam Holes Drilled No
Valve Cover Mounting Style Center and perimeter bolt
Valve Guide Material Manganese bronze
Valve Guides Included Yes
Valve Seat Machine Style 4-angle intake/3-angle exhaust
Valve Seat Material Ductile iron
Valve Seats Machined Yes
Valve Springs Included Yes
Valve Stem Seal Style PC seal
Valve Stem Seals Included Yes
Valves 2.05 Int / 1.60 Exh

Dart's Pro 1 heads for small block Chevrolet engines are ideal for street performance enthusiasts and weekend racers alike. These heads are powerful, lightweight, affordable and come fully assembled with valves and springs. Specifications: 215cc intake ports, 64cc combustion chamber, 1.437 single springs, 2.05/1.60 valves. - 215cc cylinder heads are optimal for engines with 350 to 400 cubic in displacement reaching around 6,000 max rpm. - The 1.437 double spring is intended primarily for engine applications using a hydraulic roller cam. - Cylinder heads sold individually, set required for engine use.

  • Made start to finish in the U.S.A.
  • Works with virtually all factory standard parts.
  • Proven technology tested for the race track and for the street.
  • Cast from premium C355-T61 aircraft aluminum.
  • Developed to produce maximum horsepower and efficiency.
Reviews
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L
Lowest price I could find in the net. It was easy to order. Delivered on time. I'll buy again.
Q
Great pricing, fast shipping, A+++
T
Extremely fast shipping - shipped the next business day and I was notified via email about everything.  Also, VERY good pricing on the products AND shipping.  Thanks!
D
Great product and half the price of any one else I've shopped would recommend this to everyone.
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