RHS PRO ELITE™ 6 Bolt CNC Port Aluminum Cylinder Heads for GM LS3 Applications

RHS Pro Elite LS3 CNC-ported 6-bolt cylinder heads utilize the popular LS 6-bolt head design to provide more clamping force for high-horsepower or boosted engine builds. This bolt pattern also makes Pro Elite heads compatible with the RHS LS race block, GM LSX block and OEM 4-bolt blocks by simply leaving the bolt holes at the top and bottom middle of the cylinders unused. These heads are available bare or assembled—along with a variety of other performance options.

Features:

* Increased clamping capacity over standard 4-bolt design improves head gasket retention
* CNC-machined intake and exhaust runners, as well as combustion chambers, increase airflow capability
* 0.660 in. and 0.700 in. lift valve spring assemblies allow for higher lift cams and increased engine RPM
* Designed for high-horsepower and boosted GM LS3 applications

 

Priced EACH

$1,199.99
SKU
RHS-54550

-54550, BARE, CNC Ported, 68cc chamber, 263cc intake runner, bronze guides.

-54550-05SCS, COMPLETE, CNC Ported, 68cc chamber, 263cc intake runner, bronze guides, 2.165"/1.600" valves, 660" lift dual springs, steel retainers, assembled.

-54550-03STS, COMPLETE, CNC Ported, 68cc chamber, 263cc intake runner, bronze guides, 2.165"/1.600" w/Stainless intake and Inconel exhaust valves, 700" lift dual springs, steel retainers, assembled.

-54550-03TTS, COMPLETE, CNC Ported, 68cc chamber, 263cc intake runner, bronze guides, 2.165"/1.600" w/Titanium intake and Inconel exhaust valves, 700" lift dual springs, steel retainers, assembled.

 

Priced Individually

More Information
SKU RHS-54550
Manufacturer Comp Cams
Application Guide All Gen 3/4 powered GM Vehicles with at least 4.000" Bore & LS3 Style Rectangular Port Intake, can be used with 6-bolt block or standard
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