Gwatney Performance Innovation

Gwatney Performance Innovation Gwatney Performance Innovation
Leader in GM LS/LT Performance, R&D, and Calibration. Let us help you FIND YOUR FAST!
(228)

Gwatney Performance Innovation can perform nearly every performance modification imaginable to a wide variety of vehicles. Custom ground camshafts have become a mainstay at GPI – especially for the LSx motor platform. We often venture into Supercharged and Nitrous projects – and bring the total package together with a custom tune using our own in-house DYNO.

07/16/2026

Shaking the room in Arkadelphia💪
Engine testing is happening down at K***z and Company Racing engines in their newly renovated Engine Dyno room. When you're ready to see what your build is capable of, hit us up!

Call Kevin to schedule an appointment 📞 501-985-4947

Engine Dyno. Hub Dyno. Street Tune. ⬇️
🖥️ gwatneyperformance.com
📍 Jacksonville, AR
📧 [email protected]

07/16/2026
07/14/2026

The results of a Track Attack Cam, Ported Heads, Fresh Hi-Ram, and an Anderson Composite Hood + GPI Tuning 🔊

When you're ready for an upgrade, call Kevin to schedule an appointment 📞 501-985-4947

15 years and still going strong 💪
🖥️ gwatneyperformance.com
📍 Jacksonville, AR
📧 [email protected]

🙏🙏🙏🙏Complete, GPI-ported BTR Canted Valve LS cylinder head for LS1 6-bolt applications. Professionally ported and fully ...
07/12/2026

🙏🙏🙏🙏

Complete, GPI-ported BTR Canted Valve LS cylinder head for LS1 6-bolt applications. Professionally ported and fully assembled by Gwatney Performance with Gen V LT1 valves, BTR .660″ spring kit with Ti retainers, and finished valve seats. 350+ CFM intake / 230+ CFM exhaust flow at .650″ lift (28″ H₂O, 4.065″ bore). 250cc intake / 82cc exhaust ports. Bolt-on ready, no additional headwork needed.

Get yours here : https://f.mtr.cool/bzqzsuzoyc

Time to find your fast.
Call Kevin for Tuning Appointments or In House Scheduling ⬇️
📞 501-985-4947
📍 Jacksonville, AR
📧 [email protected]

07/10/2026

Beat the heat with a fresh 🧢

All merch Available at : https://f.mtr.cool/wyyzgvwexb

Time to find your fast.
Call Kevin for Tuning Appointments or In House Scheduling ⬇️
📞 501-985-4947
📍 Jacksonville, AR
📧 [email protected]

07/08/2026

Red, White and BOOST 🇺🇸
All July, the 396 Boostmaster is on Sale!

Check your future engine out here : https://f.mtr.cool/mgdumoajts

Time to find your fast.
Call Kevin for Tuning Appointments or In House Scheduling ⬇️
📞 501-985-4947
📍 Jacksonville, AR
📧 [email protected]

We proudly support products Made in the USA 🇺🇸Time to find your fast. Find Made in America parts at gwatneyperformance.c...
07/06/2026

We proudly support products Made in the USA 🇺🇸

Time to find your fast. Find Made in America parts at gwatneyperformance.com 🖥️
Call Kevin for Tuning Appointments or In House Scheduling ⬇️
📞 501-985-4947
📍 Jacksonville, AR
📧 [email protected]

07/04/2026

Let freedom and horsepower RING 🎆

We hope you all have the best day celebrating horsepower, family, and freedom. Here's to America's 250!

Time to find your fast.
Call Kevin for Tuning Appointments or In House Scheduling ⬇️
📞 501-985-4947
📍 Jacksonville, AR
📧 [email protected]

Address

200 Municipal Drive
Jacksonville, AR
72076

Opening Hours

Monday 7:30am - 5:30pm
Tuesday 7:30am - 5:30pm
Wednesday 7:30am - 5:30pm
Thursday 7:30am - 5:30pm
Friday 7:30am - 5:30pm

Website

Alerts

Be the first to know and let us send you an email when Gwatney Performance Innovation posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Gwatney Performance Innovation:

Shortcuts

Share

Category