Competition Use Only, Not Legal for Road Use

LS7 Cylinder Head Porting Service Customer Supplied Heads

Elevate your LS7 engine’s performance with ourPrecision Race Components (PRC) LS7 CNC 265cc Porting Service. This service is forcustomer-supplied cylinder headsand includes CNC porting, a valve job, guide replacement, and optional milling. Our extensive R&D and dyno testing ensure industry-leading power and airflow gains, withflow improvements of up to 35 CFMover the stock GM LS7 head.

Whats Included in the Service?

• CNC Porting:Fully CNC-ported intake and exhaust ports for maximum airflow and efficiency.
• CNC Valve Job:Precision valve seat machining for enhanced sealing and performance.
• New CHE Bronze Guides:Replaces factory guides with high-performance CHE bronze guides for improved durability and heat resistance.
• Reuse Factory Valves:Retains factory 2.200″ titanium intake valves.
• New Stainless Steel Valve Exhaust:Includes stainless steel 1.610″ exhaust valves for improved durability.
• Optional TSP Spring Kit:Add PAC valve springs and titanium retainers for enhanced high-RPM stability.
• Complete Assembly:Heads are cleaned, ported, and assembled with premium components.

Proven Results:

The PRC LS7 cylinder heads deliver unmatched power and airflow, making them one of the mostaffordable and powerful LS7-based optionson the market. Extensive testing ensures peak performance for street, track, and racing applications.

Flow Data (@ 4.125″ Bore Plate, Superflow 600):

Important Notes:

• Customer Supplied Heads Only:We do not supply castings; this service is for customer-provided heads only.
• Shipping Instructions:Please remove all cylinder head accessories (spark plugs, coolant plugs, steam port blocks, etc.) before shipping.
• Disclaimer:Texas Speed & Performance is not responsible for any lost parts left on the heads.