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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
For Your Every Summer RSVP, with Code: SUMMER15
Description
PRC Cathedral Port 15 Degree 237cc Cylinder Heads | CompleteTexas Speed & Performance have been at the forefront of LS LT 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. Features of Your New PRC 237cc CNC Cylinder Heads: The all new PRC
Texas Speed & Performance have been at the forefront of LS/LT 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.
Features of Your New PRC 237cc CNC Cylinder Heads:
The all new PRC 237cc cylinder head is finally available for customers looking for the PINNACLE bolt on 15 degree LS cathedral port performance cylinder heads.
The new PRC as-cast intake port has been flow-bench tested to flow over 339 CFM and can support everything from smaller camshaft street engines, All the way to all-out race engines!
This cylinder head is a combination of a max-effort, high-flowing port with a smaller chamber designed for max power in minimum of 4.00" bore!!
***If you purchase a Melling oil pump you MUST use a single-roller timing set! The Melling oil pump will not clear a double-roller timing set!***
Features & Inclusions of your new PRC 237cc Cylinder Heads
- CNC Machined Chambers (Choice of standard 68cc, 67cc, 66cc, 65cc, 64cc, 63cc OR 62cc );
- 237cc Intake Runners;
- 84cc Exhaust Runners;
- Designed as a complete bolt on cylinder head with minimal change to pushrod length;
- Built In Rocker Pedestals (No Rocker Stands Required);
- Texas Speed Spring Kit with PAC Racing Dual Polished Platinum Valve Springs Rated to .660" Lift Incl. Titanium Retainers!;
- 12 Degree Valve Angle;
- CHE Bronze Guides;
- 2.045" Stainless Steel Intake Valves;
- 1.600" Stainless Steel Exhaust Valves;
- CHE Bronze Valve Guides;
- Factory Rocker Friendly;
- Extra Thick Deck Surfaces For BOOST!!;
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
4.5 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Emmy Lou's favorite ball ever!
Absolute favorite ball! Now have it in 2 colors and its always the go to
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Great for playing fetch.
The hol-ee balls come in different sizes. I have an assortment. I love to stuff them with treats for my pet and watch him try to get them out. The holes make it easier for my dog to pick up the ball when we play fetch. I match the treat size with the hole size of each ball size. These are sturdy toys and can stand up to rough play.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Great turtle toy
Perfect toy! My pet turtle loves it. He likes dragging things around his tank and pushing them around. I got him this because his old toy was a pvc pipe connector (which he loved to death), but it broke his beak. So I got him this so he could chew it and drag it around. Great and safe alternative
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Reviewed in the United States on October 27, 2025
★★★★★ 5
Favorite ball!
My dog absolutely loves this ball. I have a 11 pound mini golden doodle for reference. It is super durable and easy to clean. It is easy for her to get her teeth around and is one thing she has not chewed up.
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Reviewed in the United States on October 31, 2025
★★★★★ 4
Not what I expected
It's ok..but the holes in it are pretty big.
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Reviewed in the United States on March 2, 2026
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