Maximum performance/full competition, unlimited oval and super classes. 7,000+ RPM, 400+ cubic inch engines. Dart PRO1 23 Deg 227cc CNC heads are professional quality competition cylinder heads. We applied the airflow technology developed in our championship winning Pro Stock engine program to produce these state of the art heads. Every intake port, every exhaust runner, every valve bowl and every combustion chamber is 100% CNC machined on special dedicated PRO1 castings. These heads are ideal for high compression, big cubic inch small blocks and are great for supercharged applications. Standard valve angle and spacing are retained to allow use of off the shelf pistons and valve train components. Hardened exhaust seats are compatible with unleaded gasoline. Manganese Bronze valve guides extend cylinder head life.
Additional Attributes:
GTIN: 00807051005776
CNC Ported: Yes
Combustion Chamber Volume: 66.00
Cylinder Head Material: RMR Cast Aluminum Alloy
Cylinder Head Series: Pro1
Engine – Web: Big Block
Engine Type: ICE
Engine: Big Block
Exhaust Valve Diameter: 1.600
Industry: Automotive
Intake Valve Diameter: 2.100
Make – Web: Chevrolet
Make: Chevrolet
Port Volume: 245.00
Product Type: Engine Cylinder Head
Prop 65 (C, R or CR): CR
Prop 65 Yes/No: Yes
Spring: Double
Valve Angle: 23
Valve Spring Diameter: 1.550
Valve Spring Maximum Lift: 0.700
Extended Information:
Emissions : CARB Eligible
Life Cycle Status: Available To Order
Packaging:
Quantity of Each: 1
Package UOM: EA
Dimension: 22.250 x 7.000 x 9.000 inches
Weight: 28.000 PG
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