Vehicle Info Needed

CHEVROLET PERFORMANCEPART NUMBER: 809-12629063

LS-Series LS3 Cylinder Head, Assembled

Name: LS-Series LS3 Cylinder Head, Assembled
Brand: CHEVROLET PERFORMANCE
SKU: 809-12629063
Price: 650.99 USD
Availability: InStock

^$650⁹⁹

Ships on Sep 08, 2026

Lowest Price Guarantee

LS3 Aluminum Cylinder Heads

Assembled
Sold Individually, 1/pkg

Part TypeCylinder Head

BrandCHEVROLET PERFORMANCE

Package Height6.6

Package Width10.6

Package Length21.0

Weight25.85 PG

Part CategoryPerformance Parts

Cylinder Head MaterialAluminum

Intake Port LocationStandard

Exhaust Valves IncludedYes

Locks IncludedYes

Retainers IncludedYes

Guideplates IncludedNo

Rocker Arms IncludedNo

Oiling StyleThrough pushrod

Rocker Arm Nuts IncludedNo

Cylinder Head FinishNatural

Valve Seats MachinedYes

Intake Valve Angle15

Maximum Valve Lift0.57 in (14.478 mm)

Valve Seat MaterialSteel

Heat CrossoverNo

Number Of Springs Per ValveSingle

Valve Springs IncludedYes

Spark Plug StyleAngled

Damper Spring IncludedNo

Valve Guides IncludedYes

Cnc-Machined Intake RunnerNo

Intake Valves IncludedYes

QuantitySold individually

Valve Stem Seals IncludedYes

Intake Valve Diameter2.165 in (54.991 mm)

Accessory Bolt Holes DrilledYes

Exhaust Port LocationStandard

Valve Guide MaterialPowdered metal

Outside Diameter Of Outer Spring1.29 in (32.8 mm)

Combustion Chamber Volume (Cc)68.4

Machined For O-RingNo

Exhaust Valve Angle15

Steam Holes DrilledNo

Rocker Arm Studs IncludedNo

Cylinder Head StyleAssembled

Valve Cover Mounting StyleCenterbolt

Valve Stem Seal StylePositive stop

Retainer MaterialSteel

Intake Runner Volume (Cc)260

Cnc-Machined Exhaust RunnerNo

Cnc-Machined Combustion ChamberNo

Exhaust Valve Diameter1.59 in (40.386 mm)

Vendor Part Number12629063

Package Qty1

Package TypeEA

No Questions

No Reviews

Items You Need

CHEVROLET PERFORMANCE

12600936 Rocker Arm Stand for GM LS Engines w/LS3, LS9 or L92-Style Heads Only

Part Number : 809-12600936

^$62⁹⁹

CHEVROLET PERFORMANCE

Cylinder Head Bolt Kit LS Engine Gen III and Gen IV

Part Number : 809-17800568

^$43⁹³

CHEVROLET PERFORMANCE

Rocker Arm Offset

Part Number : 809-12569167

^$9⁹⁹

JEGS

Billet Valley Cover for LS3/LS7/LSX

Part Number : 555-50342

^$103⁹⁹$112.29

You Save$8.30

CHEVROLET PERFORMANCE

Cylinder Head Gasket LS3/L92 6.2L - Standard LS Bolt Pattern

Part Number : 809-12610046

^$99⁹⁹

CHEVROLET PERFORMANCE