PRC LS3 Aftermarket 6-Bolt 260cc CNC Cylinder Heads
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
SKU: 199-SSPRC260LS3
All Precision Race Components (PRC) cylinder heads come fully CNC-ported and machined using state-of-the-art technology!
MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!
PRC's aftermarket casting LS3/L92/L99 cylinder heads come standard with the following options:
- NEW PRC 13-Degree Valve Angle LS3 Castings
- Improved Piston-to-Valve Clearance For Extra Compression & Larger Camshafts
- Smaller Than Stock Intake Port Volume For Improved Port Velocity
- Stainless Steel Hollow Stem 2.185" Intake Valves & Stainless Steel 1.60" Exhaust Valves
- Integrated Rocker Pedestals
- TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
- CHE Bronze Guides
- Completely Assembled in the USA
- 68cc Chambers
All PRC cylinder heads are extensively researched and tested. The all-new PRC aftermarket casting LS3 cylinder heads are designed to flow considerably more than a gm ported casting while keeping the port sizes smaller for improved port velocity. The result is a cylinder head that is smaller than a stock GM LS3 port and moves more air than any other ls3 cylinder heads!
The all new PRC aftermarket casting LS3 heads are the perfect option for customers looking for the ultimate in LS3/L99/L92 cylinder head technology
The 13-degree valve angle will allow for the ability to run more compression and larger camshafts thanks to additional piston-to-valve clearance!!
Lift |
Intake Flow |
Exhaust Flow |
.200" |
157 cfm |
117 cfm |
.300" |
224 cfm |
170 cfm |
.400" |
279 cfm |
205 cfm |
.500" |
329 cfm |
225 cfm |
.600" |
360 cfm |
235 cfm |
.650" | 372 cfm | 240 cfm |
.700" | 380 cfm | 243 cfm |
With all PRC cylinder heads, quality and performance are our two highest priorities! In addition to performance, you will not find a better performing set of cylinder heads at this price (cost is for the pair!).
Our History
For 23 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.