With HD Bushing Style Trunnion Rocker Arm Set

Package Includes:

(2) 12629063 Chevrolet Performance LS3 Complete Cylinder Heads with upgraded .675” maximum lift dual valve springs
(2) Chevrolet Performance Head Gaskets
(2) Chevrolet Performance Rocker Arm Stands
(16) Ohio Speed Shops Upgraded HD Bushing Style Trunnion Rocker Arms
(16) Ohio Speed Shops HD Rocker Arm Bolts
Full set of Chevrolet Performance Cylinder Head Bolts

Chevrolet Performance 12629063 LS3 Complete Cylinder Head

Usage: Complete LS3

Material: Aluminum

Intake Port Size: 260

Valve Angle: 15 degree

Combustion Chamber: 68.4cc

Minimum Cylinder Bore: 4.000”

Valve Springs: Dual Spring Max Lift .675”

Intake Valve: 2.165” Hollow Stem

Exhaust Valve: 1.590” Solid Stem

Intake Port Style: Rectangular L92/LS3

Exhaust Port Style: Standard LS D-port

Sold Individually


LIFT (inch) INTAKE EXHAUST
0.200 151 111
0.300 208 152
0.400 256 174
0.500 294 183
0.600 316 189


NOTE: Chevrolet Performance heads will not fit 4.8L and 5.3Lengines, due to their smaller bore sizes.

Click On Product Links Below to see more Ohio Speed Shops Cylinder Head Packages

Stock .550” Max Lift 12629063 LS3 Cylinder Heads with Head Gaskets and Bolts

Upgraded .675” Max Lift 12629063 LS3 Cylinder Heads Only

Upgraded .675” Max Lift 12629063 LS3 Cylinder Heads with Head Gaskets and Bolts

Upgraded .675” Max Lift 12629063 LS3 Heads with Head Gaskets, Roller Bearing Trunnion Rocker Arms, Rocker Arm Bolts and Rocker Stands

Upgraded .675” Max Lift 12629063 LS3 Heads with Head Gaskets, HD Bushing-Style Trunnion Rocker Arms, HD Rocker Arm Bolts and Rocker Stands

LS3 CNC Heads listed below flow +10% over the stock LS3 12629063 Cylinder Heads

CNC .550” Max Lift 88958758 LS3 Cylinder Heads with Head Gaskets and Bolts

Upgraded .675” Max Lift 88958758 CNC LS3 Cylinder Heads Only

Upgraded .675” Max Lift 88958758 CNC LS3 Cylinder Heads with Head Gaskets and Bolts

Upgraded .675” Max Lift 88958758 CNC LS3 Heads with Head Gaskets, Roller Bearing Trunnion Rocker Arms, Rocker Arm Bolts and Rocker Stands

Upgraded .675” Max Lift 88958758 CNC LS3 Heads with Head Gaskets, HD Bushing-Style Trunnion Rocker Arms, HD Rocker Arm Bolts and Rocker Stands

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Ohio Speed Shops 52629063 LS3 .675 Lift Cylinder Head Master Kit

  • $1,795.00