If you're diving into the world of LT4 builds, let me tell you about these Precision Race Components LT4 CNC 312cc ported cylinder heads. These aren’t just any heads; they’re crafted with care right here in the USA—from casting to machining. You can feel the pride in the craftsmanship when you hold them in your hands.

Designed specifically for the LT1 and LT4 engines, these heads are a game changer for anyone looking to unlock the full potential of their 6.2L LT4. The 6-bolt design means they’re compatible with both standard GM 4-bolt setups and aftermarket LT 6-bolt engine blocks. So whether you’re upgrading or starting fresh, you’re covered.

These cylinder heads come fully assembled, which is a huge time-saver. Plus, they’ve gone through extensive CNC and dyno testing, meaning you’re getting one of the most powerful LT-based cylinder heads available on the market today. That’s not just marketing fluff; it’s backed by serious performance data.

Now, let’s talk tech. The Gen 5 LT4 engine features Variable Valve Timing (VVT) controlled by a cam phaser. This tech is great for efficiency, but it can complicate things when you’re trying to design performance cams. Thankfully, with the Superflow 902 engine dyno, Texas Speed has nailed down custom camshaft designs and phaser tuning tables that let you take full advantage of that VVT. They’re the only ones offering a VVT camshaft with a phaser table included, which is a big deal if you want to get everything dialed in just right.

Just a heads up, you’ll need to grab the DOD delete kit (#25-LT1DODDEL-KIT) since these camshafts don’t work with the factory DOD/AFM system. It’s a small step that makes a big difference in performance.

• Precision Race Components Aftermarket LT4 Cylinder Heads
• TSP .660" Dual Valve Spring Kit with PAC Springs & Titanium Retainers already installed
• 2.165" Titanium Intake Valve and 1.600" Stainless Exhaust Valve for serious airflow
• 62.5cc Chamber Volume for optimal compression
• Your choice of TSP LTVVT Camshafts with various fuel lobes—whether you want factory specs, a +10%, or a +32% boost
• A set of 16 TSP Hardened Chromemoly Pushrods to keep everything in check
• CHE Bronze Guides for durability
• Phaser Lock Out Kit to help with tuning

• Cadillac CTS-V (2017-2019)
• Chevrolet Camaro (2016-2021)
• Chevrolet Corvette (2014-2019)
• Universal Retrofit (1997-2018)

• This setup is for competition use only—definitely not street legal.

So if you’re serious about pushing your LT build to the next level, these heads and cam package from Texas Speed & Performance are worth considering. They’ve got the specs, the performance, and the craftsmanship that serious enthusiasts demand.