GM Performance Cylinder Head, LS3, Bare, Aluminum, 70cc Chamber, 260cc Intake Runner, Chevy, Each (PART #GMP-12629051)

Fit any LS engine with GM Performance LS3 cylinder heads. Manufactured from aluminum alloy, these GM stock replacement heads are assembled with intake and exhaust valves, stem seals, retainers, springs, and locks. Great cylinder head airflow has always supplied the LS Series with exceptional performance. Retain that performance and save yourself time and worry by replacing your tired cylinder heads with GM Performance LS3 cylinder heads.

SPECIFICATIONS

Brand Chevrolet Performance
Manufacturer's Part Number 12629051
Part Type Cylinder Heads
Product Line Chevrolet Performance LS3 Cylinder Heads
Combustion Chamber Volume (cc) 70
Intake Runner Volume (cc) 260cc
Cylinder Head Style Bare
Cylinder Head Material Cast aluminum
Intake Port Shape Rectangular
Intake Valve Diameter (in.) 2.160 in.
CNC-Machined Combustion Chamber No
CNC-Machined Intake Runner No
CNC-Machined Exhaust Runner No
Intake Port Location Standard
Exhaust Port Shape D-port
Exhaust Port Location Standard
Spark Plug Style Angle
Intake Valves Included No
Exhaust Valves Included No
Exhaust Valve Diameter (in.) 1.590 in.
Valve Springs Included No
Damper Spring Included No
Retainers Included No
Locks Included No
Valve Stem Seals Included No
Rocker Arm Studs Included No
Rocker Arms Included No
Rocker Arm Nuts Included No
Guideplates Included No
Valve Cover Mounting Style Centerbolt
Accessory Bolt Holes Drilled Yes
Intake Valve Angle 15
Exhaust Valve Angle 15
Valve Guides Included No
Valve Seats Machined No
Valve Seat Material Steel
Cylinder Head Color Natural
Steam Holes Drilled No
Oiling Style Through pushrod
Machined for O-Ring No
Heat Crossover No
Remanufactured No
Quantity Sold individually.
Notes Fits any LS family engine with 4 in. bore or larger.

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