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Texas Speed & Performance PRC Cathedral Port CNC Porting Service for Cadillac, Chevrolet, GMC 1997-2016
$1124.00

If you're looking to give your cathedral port cylinder heads a serious boost, you've come to the right place. We're talking about the kind of performance upgrade that makes a real difference on the road or track. Our pricing is straightforward: you send us your 4.8/5.3, LS1, LS6, LS2, or LQ4/9 heads, and we take care of the rest.

With our Stage 1 porting service, we’ll work with your stock valves, giving you a solid upgrade without breaking the bank. But if you’re ready to take it up a notch, our Stage 2.5 option includes top-notch aftermarket 2.02/1.57 stainless steel valves. And hey, if you want to push your setup even further, we’ve got valve spring upgrades available too.

We pride ourselves on quality and performance—it's not just a tagline for us. When you choose our cylinder head porting service, you’re getting a level of craftsmanship that’s hard to beat at this price point. Got questions or want to chat about what’ll work best for your ride? Just give us a call. Our sales consultants are always ready to help.

What You Get:

  • Disassembly of your heads—no shortcuts here.
  • A thorough deep cleaning to get rid of any grime.
  • CNC porting that’s precise and tailored to your needs.
  • A CNC valve job that ensures everything fits just right.
  • PRC logos engraved with CNC precision—because why not?
  • CNC milling to your exact specifications.
  • Reassembly that makes sure everything is put back together perfectly.
  • Pressure testing to guarantee quality and performance.

Fitment:

  • Cadillac CTS-V (2004-2007)
  • Cadillac Escalade (2005-2014)
  • Chevrolet Camaro (1998-2015)
  • 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)
  • GMC Yukon (1999-2014)
  • Pontiac Firebird (1998-2002)
  • Pontiac GTO (2004-2006)
  • Universal Retrofit (1997-2016)

Important Notes:

  • Make sure to remove all accessories from the cylinder heads like spark plugs and coolant plugs before shipping. We can’t be responsible for any lost parts.
  • Just a heads-up: Stage 1 porting isn’t available for the 4.8L and 5.3L castings due to their factory 1.94" intake valve size. Those heads will need to go for the Stage 2.5 option with the 2.02"/1.57" stainless steel valves.
  • This service is for competition use only and isn’t street legal.

Ready to unleash some serious power? Let's get your heads ported and ready for action!

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2004-2007
Cadillac CTS-V
2005-2014
Cadillac Escalade
1998-2002, 2010-2015
Chevrolet Camaro
1997-2013
Chevrolet Corvette
1999-2013
Chevrolet Silverado 1500
2000-2014
Chevrolet Suburban
2000-2014
Chevrolet Tahoe
2006-2009
Chevrolet TrailBlazer
2009-2013
GMC Sierra
1999-2014
GMC Yukon
1998-2002
Pontiac Firebird
2004-2006
Pontiac GTO

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ABOUT TEXAS SPEED AND PERFORMANCE

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 LINE

Texas 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 PERFORMANCE

The 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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