PRC-SS227CNC Cylinder Heads by Texas Speed & Performance

If you're looking to boost the performance of your LS1 or LS2 engine, the PRC-SS227CNC cylinder heads are a solid choice. These heads feature 227cc runners and are specifically designed for stock cubic inch applications that require smaller chambers to enhance compression. Made entirely in the USA, from casting to machining, these heads are crafted with precision and care.

Key Features:

• 227cc Fully CNC Ported Intake Runners
• 84cc Fully CNC Ported Exhaust Runners
• Small Bore Chambers for Increased Horsepower and Torque
• TSP .660 Spring Kit with PAC Valve Springs and Titanium Retainers
• 62cc CNC Machined Chambers
• CHE Bronze Guides
• 2.065" Hollow Stem Intake Valves and 1.600" Stainless Exhaust Valves
• Factory Rocker Friendly Design

Performance Insights:

The PRC-SS227CNC heads have been flow bench tested to exceed 320 cfm, making them suitable for everything from street engines with smaller camshafts to high-performance race setups. Customers have noted significant improvements in their vehicle's responsiveness and overall power, particularly when used in conjunction with other upgrades. One user remarked, "These heads transformed my Camaro's performance. The throttle response is incredible, and I noticed a real difference on the track!"

Fitment:

These cylinder heads are compatible with a variety of models, including:

• Cadillac CTS-V (2004-2007)
• Cadillac Escalade (2005-2014)
• Chevrolet Camaro (1998-2015)
• Chevrolet Corvette (1997-2013)
• Chevrolet Silverado 1500 (1999-2013)
• Chevrolet Suburban (2000-2014)
• Chevrolet Tahoe (2000-2014)
• Chevrolet Trailblazer (2006-2009)
• GMC Sierra 1500 (1999-2013)
• GMC Yukon (1999-2014)
• Pontiac Firebird (1998-2002)
• Pontiac GTO (2004-2006)

Important Notes:

• The listed price applies when you send in your cathedral-port castings for porting, valve job, and milling. It does not include the cylinder head castings themselves.
• For those considering a Melling oil pump, please note that it requires a single-roller timing set, as it will not clear a double-roller timing set.
• This product is intended for competition use only and is not legal for road use.
• Review your cart carefully if you are in California or similar states, as some parts may not be legal for emissions vehicles.

The PRC-SS227CNC cylinder heads could be just what you need to elevate your vehicle's performance. Many customers have shared their satisfaction with the noticeable power gains and improved efficiency. Whether you're hitting the track or just wanting to enhance your daily driver, these heads are worth considering.