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If you're on the hunt for some serious power upgrades for your LS1 or LS2, let me tell you about the PRC 225cc As-Cast cylinder heads. These aren't just any heads; they’re crafted right here in the USA, from casting to machining, ensuring top-notch quality every step of the way.
What really sets these heads apart is their flow capability. With a flow bench tested intake port that pushes over 320cfm, they’re ready to handle everything from your everyday street engines with smaller camshafts to full-on race setups. The design is all about maximizing power without sacrificing reliability, especially in stock cube applications. You get that perfect blend of a high-flowing port and a compact chamber, which is a game-changer for boosting your engine's performance.
Here’s what you can expect:
- As-Cast 225cc Intake Runners: These come with CNC machined chambers and valve guides, giving you unmatched flow right out of the box.
- Small Bore Configurations: This feature allows for extra compression while keeping a solid piston to valve clearance—no need to worry about those pesky clearance issues.
- 62cc CNC Machined Chambers: Precision is key, and these chambers are designed to optimize your combustion process.
- Valves: You’re looking at 2.065" hollow stem intake valves and 1.600" stainless exhaust valves, making sure your engine breathes easy.
- Factory Compatibility: These heads utilize factory LS1 rocker arms, so you won’t have to change out your entire setup.
- Spring Kit: Comes with a TSP .660 dual spring kit, featuring PAC valve springs and titanium retainers—because durability matters.
Now, let’s talk fitment. These heads are compatible with a range of vehicles, including:
- Cadillac CTS-V (2004-2007)
- Cadillac Escalade (2005-2014)
- Chevrolet Camaro (1998-2002)
- Chevrolet Corvette (1997-2013)
- Chevrolet Silverado 1500 (1999-2013)
- Chevrolet Suburban (2000-2014)
- Chevrolet Tahoe (2000-2014)
- Chevrolet Trailblazer (2006-2009)
- GMC Sierra 1500 (1999-2013)
- Pontiac Firebird (1998-2002)
- Pontiac GTO (2004-2006)
- And even some universal retrofit options from 1997-2016.
Just a heads up—these are competition use only, so if you’re in California or any state with similar emissions regulations, make sure to double-check that these parts are legal for your setup.
In short, if you’re looking to take your LS engine to the next level, the PRC 225cc As-Cast cylinder heads are a solid choice. They pack a punch without breaking the bank, and you can feel good knowing they’re made right here in the USA.
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Cadillac CTS | 2004-2007 | V |
| Cadillac Escalade | 2005-2014 | Base |
| Cadillac Escalade | 2008-2014 | Platinum |
| Cadillac Escalade | 2009-2013 | Hybrid |
| Cadillac Escalade | 2010-2013 | Hybrid Platinum |
| Cadillac Escalade | 2011-2014 | Luxury |
| Cadillac Escalade | 2011-2014 | Premium |
| Cadillac Escalade | 2012 | Special Edition |
| Cadillac Escalade ESV | 2005-2014 | Base |
| Cadillac Escalade ESV | 2008-2014 | Platinum |
| Cadillac Escalade ESV | 2010 | Lujo |
| Cadillac Escalade ESV | 2011-2014 | Premium |
| Cadillac Escalade ESV | 2011-2014 | Luxury |
| Cadillac Escalade ESV | 2012 | Special Edition |
| Cadillac Escalade EXT | 2005-2013 | Base |
| Cadillac Escalade EXT | 2011-2013 | Premium |
| Cadillac Escalade EXT | 2011-2013 | Luxury |
| Chevrolet Camaro | 1998-2002 | Base |
| Chevrolet Camaro | 1998-2002 | Z28 SS |
| Chevrolet Camaro | 1998 | Lujo |
| Chevrolet Camaro | 1998-2002 | Z28 |
| Chevrolet Corvette | 1997-2013 | Base |
| Chevrolet Corvette | 1998 | Indianapolis 500 Pace Car |
| Chevrolet Corvette | 2003 | 50th Anniversary Edition Pace Car |
| Chevrolet Corvette | 2003 | 50th Anniversary Edition |
| Chevrolet Corvette | 2008 | 427 Limited Edition Z06 |
| Chevrolet Corvette | 2011 | Z06 Carbon |
| Chevrolet Corvette | 2013 | 427 |
| Chevrolet SS | 2014-2017 | Base |
| Chevrolet Silverado 1500 | 1999-2013 | LT |
| Chevrolet Silverado 1500 | 1999-2013 | LS |
| Chevrolet Silverado 1500 | 1999-2012 | Base |
| Chevrolet Silverado 1500 | 2002-2013 | WT |
| Chevrolet Silverado 1500 | 2002 | Custom |
| Chevrolet Silverado 1500 | 2003-2006 | SS |
| Chevrolet Silverado 1500 | 2004-2005 | Z71 Off-Road |
| Chevrolet Silverado 1500 | 2004-2006, 2009-2013 | Hybrid |
| Chevrolet Silverado 1500 | 2007-2013 | LTZ |
| Chevrolet Silverado 1500 | 2010-2013 | XFE |
| Chevrolet Silverado 1500 Classic | 2007 | Hybrid |
| Chevrolet Silverado 1500 Classic | 2007 | LT |
| Chevrolet Silverado 1500 Classic | 2007 | LS |
| Chevrolet Silverado 1500 Classic | 2007 | WT |
| Chevrolet Silverado 1500 Classic | 2007 | SS |
| Chevrolet Silverado 1500 HD | 2001-2003, 2005 | LS |
| Chevrolet Silverado 1500 HD | 2001-2003, 2005-2006 | LT |
| Chevrolet Silverado 1500 HD | 2005 | Base |
| Chevrolet Silverado 1500 HD Classic | 2007 | LT |
| Chevrolet Suburban | 2014 | LT |
| Chevrolet Suburban 1500 | 2000-2012 | Base |
| Chevrolet Suburban 1500 | 2000-2014 | LT |
| Chevrolet Suburban 1500 | 2000-2014 | LS |
| Chevrolet Suburban 1500 | 2002-2006 | Z71 |
| Chevrolet Suburban 1500 | 2006-2014 | LTZ |
| Chevrolet Suburban 1500 | 2010 | 75 Aniversario Diamond Edition |
| Chevrolet Suburban 2500 | 2000-2013 | LS |
| Chevrolet Suburban 2500 | 2000-2001, 2009-2012 | Base |
| Chevrolet Suburban 2500 | 2000-2013 | LT |
| Chevrolet Suburban 2500 | 2007 | LTZ |
| Chevrolet Tahoe | 2000-2014 | LS |
| Chevrolet Tahoe | 2000 | Limited |
| Chevrolet Tahoe | 2000, 2002-2006, 2008-2010 | Z71 |
| Chevrolet Tahoe | 2000-2001, 2006-2009, 2011-2012 | Base |
| Chevrolet Tahoe | 2000-2014 | LT |
| Chevrolet Tahoe | 2007-2014 | PPV |
| Chevrolet Tahoe | 2007-2014 | LTZ |
| Chevrolet Tahoe | 2008-2013 | Hybrid |
| Chevrolet Tahoe | 2012-2014 | SSV |
| Chevrolet Tahoe | 2014 | Police |
| Chevrolet Trailblazer | 2006-2009 | SS |
| Chevrolet Trailblazer | 2006-2007 | LS |
| Chevrolet Trailblazer | 2006-2008 | Base |
| Chevrolet Trailblazer | 2006-2009 | LT |
| Chevrolet Trailblazer | 2006-2007 | A |
| Chevrolet Trailblazer | 2006-2007 | B |
| Chevrolet Trailblazer EXT | 2006 | LT |
| Chevrolet Trailblazer EXT | 2006 | B |
| Chevrolet Trailblazer EXT | 2006 | LS |
| Chevrolet Trailblazer EXT | 2006 | Base |
| GMC Sierra | 2009-2013 | Denali |
| GMC Sierra | 2009, 2011-2012 | Base |
| GMC Sierra | 2010, 2013 | SLT |
| GMC Sierra | 2013 | SLE |
| GMC Sierra 1500 | 2009-2013 | Hybrid |
| GMC Sierra 1500 | 2009-2013 | SLT |
| GMC Sierra 1500 | 2009-2013 | Denali |
| GMC Sierra 1500 | 2009-2013 | SLE |
| GMC Sierra 1500 | 2009-2013 | WT |
| GMC Sierra 1500 | 2009-2013 | SL |
| GMC Sierra 1500 | 2010-2013 | XFE |
| GMC Sierra 2500 HD | 2009-2013 | SLE |
| GMC Sierra 2500 HD | 2009-2013 | SLT |
| GMC Sierra 2500 HD | 2009-2013 | WT |
| GMC Sierra 2500 HD | 2011-2013 | Denali |
| GMC Sierra 3500 HD | 2009-2013 | WT |
| GMC Sierra 3500 HD | 2009-2013 | SLE |
| GMC Sierra 3500 HD | 2009-2013 | SLT |
| GMC Sierra 3500 HD | 2011-2013 | Denali |
| GMC Yukon | 1999-2014 | SLT |
| GMC Yukon | 1999-2014 | SLE |
| GMC Yukon | 1999-2014 | Denali |
| GMC Yukon | 2006 | SL |
| GMC Yukon | 2007-2009, 2011-2012 | Base |
| GMC Yukon | 2008-2013 | Hybrid |
| GMC Yukon | 2010-2013 | Denali Hybrid |
| Pontiac Firebird | 1998-2002 | Formula |
| Pontiac Firebird | 1998-2002 | Base |
| Pontiac Firebird | 1998-2002 | Trans Am |
| Pontiac GTO | 2004-2006 | Base |
Texas Speed and Performance began as a small business in 2003. Texas Speed and Performance is situated in Georgetown, Texas, and is a leader in the LSx sector. Texas Speed & Performance has quickly established itself as one of the largest performance makers and retailers of premium LSX and LT1 packages in the United States. Texas Speed and Performance founders, Trevor Doelling and Jason Magnum, have a combined 30+ years of experience in the high-efficiency sector and are constantly striving to research and manufacture the highest quality performance goods for your car. This is accomplished by putting their products through their paces on their in-house futuristic super flow engine dyno. Texas Speed and Performance components can be found in some of the fastest street and competition automobiles in the country.
WHY CHOOSE TEXAS SPEED AND PERFORMANCE?Texas Speed and Performance provides all levels of aftermarket performance products from LSx and 2014+ 6.2L LT1/LT4 performance parts, aftermarket cast cylinder heads, basic air induction exhaust, camshafts, stroker engines and in-house machining of all their engines. They are one of the largest LSx and 2014+ 6.2L LT1/LT4 specific shops in the country. Owing to their in-house cylinder head manufacturing, engine assembly, and camshaft grinding facility, they assist customers with all of their high-performance LSx and 2014+ 6.2L LT1/LT4 needs and requirements.
TEXAS SPEED AND PERFORMANCE PRODUCT LINETexas Speed and Performance Exhaust offers camshafts, short and long blocks, turn-key engines, valvetrain, crankshafts, rods, and aftermarket cylinder heads.
VIVID RACING-TEXAS SPEED AND PERFORMANCEThe Texas Speed and Performance products at Vivid Racing include the Texas Speed and Performance Stage 4.2 LS7 Camshaft Chevrolet Camaro, Corvette 2006-2015, which has fitment for the Chevrolet Camaro 2012-2015 and Chevrolet Corvette 2006-2013 models.
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