Its only one cylinder head. You'll need to buy two to complete your build.

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RHS 54530-05HCS Pro Action Pre-Assembled LS3 Cylinder Head w/ .660" Lift Dual Springs

RHS 54530-05HCS Pro Action Pre-Assembled LS3 Cylinder Head w/ .660" Lift Dual Springs

Q: Has any porting or polishing over stock size been done?

No, this is a stock replacement as cast head.

Q: What is the deck thickness? Are they thicker than factory heads?

Measures out about the same as factory LS3 heads.

Q: is this for one or two heads?

The heads are sold individually.

5.0/5

Product ID: 169168617

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💨Optimized airflow for max power

🔧Precision RHS Clean Cast tech

⚙️.660" valve lift with dual springs

Frequently Bought Together

Description

⚡ Unlock LS3 Beast Mode with Precision Power!

FLAWLESS FINISH - RHS Clean Cast Technology delivers a smooth, defect-free surface for superior reliability.
PLUG PLAY POWER - Pre-assembled with .660" lift dual springs for instant high-performance upgrades.
RACE READY AIRFLOW - Engineered OE architecture ensures peak breathing efficiency for your LS3.
BEST BANG FOR YOUR BUCK - Top-tier materials and COMP Cams spring kits combine for unbeatable LS3 value.
DURABILITY MEETS PRECISION - Premium bronze/manganese valve guides guarantee long-lasting valve seat concentricity.

The RHS 54530-05HCS Pro Action LS3 Cylinder Head offers a pre-assembled, high-performance upgrade featuring .660" valve lift dual springs, premium bronze/manganese valve guides, and RHS Clean Cast Technology for superior airflow and durability—all designed to fit factory OE architecture for seamless installation and maximum power gains.

Specifications

Manufacturer	RHS
Brand	Comp Cams
Model	Pro Action Pre-Assembled LS3 Cylinder Head w/ .660" Lift Dual Springs
Item Weight	29.8 pounds
Package Dimensions	25.35 x 10.31 x 7.56 inches
Item model number	54530-05HCS
Exterior	Machined
Manufacturer Part Number	54530-05HCS
OEM Part Number	12675871

Have a Question? See What Others Asked

Has any porting or polishing over stock size been done?

What is the deck thickness? Are they thicker than factory heads?

is this for one or two heads?

These 2 heads or 1 ?

Common Questions

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