About

Gwatney Performance Innovation can perform nearly every performance modification imaginable to a wide variety of vehicles. Custom ground camshafts and cylinder heads have become a mainstay at GPI – especially for the LTx and LSx motor platforms.

We specialize in supercharged, turbocharged and nitrous projects – and bring the total package together with a custom tune using our own in-house dyno.

Contact Us

Have a Question?

Give us a call:  (501) 985-4947

Or Email:  support@gwatneyperformance.com

Customer Service Hours

Monday – Friday

7:30AM – 5:30PM

Mailing Address

1301 T P White Dr

Jacksonville, AR 72076

GPI Team

Aaron Salisbury
Fixed Operations Director

Ryan Stevens
Head Calibrator

James Zajac
Service Manager