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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
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Description
PRC LS7 Cylinder Heads | 265cc | CNC Ported | Small BoreTexas Speed & Performance have been at the forefront of LSX Performance from Day One! Responsible for setting & breaking almost every record, a major key to their success has been the R&D that goes into the Texas Speed Cylinder Head range known as PRC. The Precision Race Components range offers a large selection of high performance cylinder heads to suit all performance applications & all made, machined & ported in house in USA. Your New PRC CNC
Texas Speed & Performance have been at the forefront of LSX Performance from Day One!Responsible for setting & breaking almost every record, a major key to their success has been the R&D that goes into the Texas Speed Cylinder Head range known as PRC.
The Precision Race Components range offers a large selection of high performance cylinder heads to suit all performance applications & all made, machined & ported in-house in USA.
Your New PRC CNC Ported 6 Bolt Cylinder Heads Include
- 100% USA Made 6 Bolt LSX LS7 Port Castings;
- 66cc Combustion Chamber options;
- 265cc Intake Runners;
- Built In Rocker Pedestals (No Rocker Stands Required);
- PAC .660" Dual Valve Springs Incl Titanium Retainers *Optional upgrade available;
- 12 Degree Valve Angle;
- 2.205" Stainless Steel Intake Valves (Optional Upgrades Available);
- 1.610" Stainless Steel Exhaust Valves;
- CHE Bronze Valve Guides;
PRC CNC Porting Process
- CNC machining of your cylinder heads intake runner;
- CNC machining of your cylinder heads exhaust port;
- CNC machining & porting of the combustion chamber to specified CC;
- 5 Axis CNC cutting of your cylinder heads valve seats;
- CNC cut valve spring seats;
- Machine the deck face to increase compression;
- Suited to 4.00" Inch & Larger Bore;
How Do They Work?
**Valve spring lift ratings are based on using titanium intake valves.
PRC 265cc LS7 Intake PRC LS7 Exhaust
.200 169 118
.300 246 176
.400 304 208
.500 348 221
.600 380 230
.650 383 235
.700 388 240
What Is The Process To Order Your New Cylinder Heads?
We aim to keep most products in stock however certain items may require manufacturing. We recommend confirming whether these are in stock or if there is a current eta.
1. If the cylinder heads are In Stock. Once payment has been completed on your order this will ship out within 24 hours.
2. If the cylinder heads need to be ordered in, we will confirm the ETA prior to order. You will simply be required to place a deposit with the balance due upon arrival to us prior to shipping out.
The ETA provided will factor in variables such as manufacturers stock or manufacturing lead times, shipping eta's etc.
We recommend always confirming this prior to order.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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★★★★★ 5
Very helpful
Good plan to have.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Asurion worked as intended.
After three years, my monitor failed. Asurion paid to send it to a repair center. I didn't save the box the monitor came in, and paid $23 to have it packaged up. They kept me informed of the various steps, such as en route, arrived, testing, and repair started. They discovered it could not economically be repaired and refunded my purchase price. The entire process from me telling them it was broken until the refund took 5 days. I am well satisfied with the service.
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Reviewed in the United States on August 31, 2025
★★★★★ 5
would recommend
It was perfectly packed for unpacking it. Instructions were spot on. I downloaded software from internet with ease. The quality is impressive.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Great value - functions well with fairly easy setup.
I found the setup to be fairly simple. It performs exactly as I hoped. I needed a printer, copier and scanner - it is a great value. I did have to do some research to complete the scanner setup - that could have been easier overall.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Office‑grade, solid, fast, and capable.
I didn’t just buy a different printer — I moved up a class.
Compared to my Canon PIXMA: I feel about the Epson WF 4834 the way someone feels when they finally replace a flimsy folding chair with an actual piece of furniture. The difference isn’t subtle — it’s structural.
Price is awesome. I’m getting my money’s worth and more. Solid machine. Super easy to install on my network. Wireless connection is great! I print from different rooms all the time. Print quality is outstanding, professional looking. Easy to use, period. So far, I’m not disappointed.
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Reviewed in the United States on June 13, 2026