For use on 3.820 or bigger bore Precision Race Components all new cylinder head castings completed with 220cc runners. For stock cubic inch 4.8/5.3/LS1/LS2 applications requiring a stock valve...

Texas Speed & Performance Gen 5 DOD/AFM Delete KitThe Texas Speed & Performance DOD/AFM Delete Kit provides everything you need to completely remove Displacement On Demand (DOD) and Active...

TSP "CHOPacabra" Truck Cam Specs: 214/222 .495/.495 108 LSA 106 ICL Introducing the CHOPacabra cam! This is a nasty little beast of cam. Designed to work with stock valve springs and a factory...

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...

Precision Race Components LT1 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!! Our gen 5 LT1...

Texas Speed & Performance rotating assemblies offer the best durability with the best pricing available! You can choose from a variety of upgrades for the crankshaft, connecting rods, and...

Texas Speed 5/16" .080 Wall Chromoly Pushrods, SINGLE Texas Speed & Performance Chromoly Hardened Pushrods In Your Choice Of Lengths! Hardened pushrods are a must for any valvetrain...

Texas Speed 5/16" .080 Wall Chromoly Pushrods, Set of 16 Texas Speed & Performance Chromoly Hardened Pushrods In Your Choice Of Lengths! Hardened pushrods are a must for any valvetrain upgrade...

Texas Speed & Performance Chromemoly Hardened Pushrods In Your Choice Of Lengths - Single Hardened pushrods are a must for any valvetrain upgrade on your LS/LT based engine. These TSP chromemoly...

Texas Speed & Performance Chromemoly Hardened Pushrods In Your Choice Of Lengths - Set of 16! Hardened pushrods are a must for any valvetrain upgrade on your LS/LT based engine. These TSP...

Precision Race Components Aftermarket Casting 6-Bolt 260cc Fully CNC Ported LS3 Heads. Assembled in the USA When selecting your camshaft, please keep in mind that the largest camshaft you can run on...

GM High Performance LS .550" Lift Springs (Replaced LS6) These springs are designed for lifts up to .550" with less aggressive ramps! For springs designed for more aggressive camshafts, take a...