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PRC Aftermarket LT4 Heads and Cam Package

$3,674.99
Precision Race Components LT4 CNC 312cc ported cylinder heads. All new 6-bolt Precision Race Components LT cylinder heads! MADE in the USA!! CAST in the USA!! MACHINED in the USA!! Now available For LT1 or LT4 Builds! Our gen 5 LT4 cylinder heads and camshaft package is a must for the enthusiast looking to use the full potential of their 6.

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SKU: 199-PRCLT4HCPkg
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  • Precision Race Components LT4 CNC 312cc ported cylinder heads. All new 6-bolt Precision Race Components LT cylinder heads! MADE in the USA!! CAST in the USA!! MACHINED in the USA!! Now available For LT1 or LT4 Builds! Our gen 5 LT4 cylinder heads and camshaft package is a must for the enthusiast looking to use the full potential of their 6.2L LT4 engine! The TSP heads/cam package will include the following items: ​ Precision Race Components Aftermarket LT4 Cylinder Heads ​TSP .660" Dual Valve Spring Kit with PAC Springs & Titanium Retainers Installed on Cylinder Heads ​Your Choice of TSP LT1VVT Camshafts with Factory, +10%, or +32% Fuel Lobe ​Set of 16 TSP Hardened Chromemoly Pushrods ​Phaser Lock Out Kit ​ The PRC LT4 cylinder heads are available with hollow-stem or titanium intake valves. The hollow-stem intake valves shed significant intake valve weight and allow for additional lift. The titanium intake valves will be the lightest choice however and offer the best durability possible! 2.165" Intake Valve / 1.600" Exhaust Valve PRC Dual Spring Kits featuring PAC .660" or .750" lift springs are available. Includes new seats, seals and titanium retainers. ​CHE Bronze Guides ​6-Bolt Cylinder Heads with Thicker Deck Surface (Will Work on Both Standard GM 4-Bolt & Aftermarket LT 6-Bolt Style Engine Blocks) Completely Assembled & Setup To Your Specs Extensive CNC and dyno testing has resulted in one of the most powerful LT-based cylinder heads available! The gen 5 LT4 engine utilizes Variable Valve Timing (VVT) controlled via a cam phaser. A cam phaser is a computer-controlled cam gear that automatically optimizes camshaft timing based on the current engine RPM. While this technology provides tremendous efficiency benefits, it presents a challenge when designing performance cams due to the wide range of valve timing movement and constantly changing piston-to-valve clearance. With the help of Texas Speed's Superflow 902 engine dyno, we are able to custom-design camshafts and phaser tuning tables to allow our gen 5 LT customers the ability to purchase the ultimate in Gen 5 LT performance camshafts! Thanks to the Superflow 902 dyno, Texas Speed is the only company that currently offers a VVT camshaft with a phaser table included to properly tune the camshaft phaser! This package will require DOD delete kit # 25-LT1DODDEL-KIT since all of our camshafts do not utilize the factory DOD/AFM system. ​ FLOW NUMBERS Lift Intake Exhaust .2 151 117 .3 223 154 .4 265 200 .5 310 216 .6 349 229 .65 365 232 .7 370 235

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