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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
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Description
PRC LS7 Cylinder Heads | 285cc | CNC Ported | 400+CFMTexas 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;
- 70/68/64cc Combustion Chamber options;
- 285cc 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;
- 2.245" 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;
How Do They Work?
**Valve spring lift ratings are based on using titanium intake valves.
LS7Intake LS7 Exhaust PRC 285ccLS7 Intake PRC LS7 Exhaust
.200 161 114 169 119
.300 227 171 248 179
.400 291 193 311 211
.500 330 203 353 224
.600 351 209 386 235
.650 353 204 393 241
.700 353 209 407 246
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
4.1 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
A Classic
Format: Mass Market Paperback
A classic that deserves to be re-read to our children and grandchildren
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
★★★★★ 4
A challenging read
Every now and then I challenge myself with a classic. This one was definitely that - a challenge. Allow me to explain.
First, this is the story of King Arthur. All the characters are present: Gweniviere, Lancelot, Merlin, the Knights of the Round Table, the sword in the stone, Mordred, and all the ones I’d ever heard of in retellings-of the story. However, many were not as good, bad, beautiful, handsome, or courageous and pure of heart as I’d been led to imagine. These characters were messy and deep with honor and dishonor battling within them. But there was a quiet strength and desire to do good about them. So, this book challenged my preconceived images of these characters.
Second, this book is long. It is divided into four parts. The first two parts were more familiar (maybe) and were a little easier to read. They told of Arthur’s early education under Merlin, pulling the sword from the stone, and establishing the Round Table - the glory days. Part three tackles the love triangle between Arthur, a Gwen, and Lancelot; the quest for the Holy Grail; and the rise of Mordred. Part four got a little tedious describing the fall of Arthur’s reign, the destructive force of lies and secrets, and the power of evil. This section challenged me with some very deep theological and philosophical musings amid the battles among friends and family.
Finally, this book is written using a Middle English wordings and geographic dialect. I had to look up many words (not all definitions could be found) to really understand some things, but was generally able to follow the story. The author also frequently talked directly to the reader which took some getting used to. The writing style definitely challenged my vocabulary and ability to follow transitions from author speaking to characters.
One last thing, the ending was left somewhat open to interpretation and imagination. I choose to believe the happiest of the possible outcomes. I’m glad I read this book, but i think I’ll go read something a little easier next!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2020
★★★★★ 5
Freshest breathe
I recently purchased a stainless steel tongue cleaner, and I am pleased to report that it is a great product. The cleaner is made of high-quality stainless steel, which is extremely durable and will not corrode over time. It is also easy to use and clean, as the cleaning part is made of a smooth and rounded end that fits comfortably in my mouth.
The cleaner is also very effective at removing bacteria and food particles from my tongue. After using the cleaner for a few days, I noticed that my breath had improved significantly and that my taste buds were more sensitive. I was also surprised to find that the cleaner was gentle enough to use on an everyday basis without causing any irritation.
Overall, I am very happy with my purchase and would highly recommend it to anyone looking for an effective and affordable tongue cleaner. Not only is the stainless steel cleaner effective and easy to use, but it also lasts longer than other tongue cleaners on the market. I would definitely recommend this product to anyone looking for an effective and reliable tongue cleaner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2023
★★★★★ 5
Nice product
This is a great tongue scraper. Its metal and is a two pack. Definitely worth the money. I di recommend this product.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Exactly what I needed
These are solid and work really well. They’ve held up perfectly and as long as I don’t lose them I can’t imagine them wearing out for a really long time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
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