Recommended for engines with 4.000 inch bore or larger. Maximum competition, comp/modified drag racing, circle track, and heavy duty applications. Dart’s LS based PRO1 LS 15 Deg 280cc Aluminum rectangle port cylinder head (LS3 compatible) for GM LS series small block V8 engines take performance to the next level. Offers higher performance and more versatility than factory designs. The 15 Deg based high performance cylinder head has better airflow, more efficient combustion chambers and more user friendly features than production LS castings. The Dart PRO1 280cc cylinder head retains stock valve angles, stock valve locations and stock accessory mounting holes to make installation easy. Virtually everything else has been improved.
Additional Attributes:
GTIN: 00807051044379
CNC Ported: Yes
Combustion Chamber Volume: 66.00
Cylinder Head Material: RMR Cast Aluminum Alloy
Cylinder Head Series: Pro1
Engine – Web: LS Gen III
Engine Type: ICE
Engine: LS Gen III
Exhaust Valve Diameter: 1.625
Industry: Automotive
Intake Valve Diameter: 2.200
Make – Web: Chevrolet
Make: Chevrolet
Port Volume: 285.00
Product Type: Engine Cylinder Head
Prop 65 (C, R or CR): CR
Prop 65 Yes/No: Yes
Spring: Double
Valve Angle: 12
Valve Spring Diameter: 1.290
Valve Spring Maximum Lift: 0.650
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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