Make your plans for the
Monster Muscle Car weekend
event in St. Louis, Oct 1 & 2
Ride along with the
fastest Challenger at the Charlotte Optima USCA race.

Watch the Arrington Performance Intro    

HEMI Engine Performance Parts

Add performance parts to your mild to wild engine build to get the horsepower you want. Arrington selects and sells only the parts that offer you reliable performance for your HEMI engine. These parts will allow you to complete your build or eke out the extra torque you need to win. 
Arrington Performance HEMI Camshafts
Upgrade your power and change the timing and sound of your HEMI by upgrading your Camshaft. Cams can improve towing performance or add a signature lope to your HEMI engine. 
API Ported Heads and Head Packages
API ported heads set the standard with an industry leading CNC port design and a NEWEN Epoc single point valve job. Why settle for heads ported in someone's basement. 
HEMI Rotating Assembly Components
Looking to bore and stroke your HEMI and have access to your own machine shop and engine building knowledge? Get the same parts that we put in our signature HEMIs and do the work yourself. 
HEMI Engine Soft Parts
Gaskets, belts, hoses and more… HEMI engine repair soft parts and more are all available at API. 
HEMI Engine Hard Parts
Radiators, Sensors, Piston Parts and more… HEMI engine repair hard parts and more are all available at API 
Bare HEMI Blocks
Looking to upgrade your HEMI or change your damaged HEMI engine block for a new one? Buy a bare block here with or without additional stroker machine work.