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!
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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.

08/12/2026

SS3 🪓

08/12/2026

Late model to new, GM, LS, or LT, we can’t wait to work on your vehicle😎

Call Kevin to get on shop Schedule ⬇️
📞 501-985-4947
🖥️ gwatneyperformance.com (Link in Bio)
📍 Jacksonville, AR

📧 [email protected]

Built to handle power 💪Mahle Motorsports offers GM LSX Combo PowerPak piston and ring kits, designed for high-output, na...
08/07/2026

Built to handle power 💪

Mahle Motorsports offers GM LSX Combo PowerPak piston and ring kits, designed for high-output, naturally aspirated, power-adder applications. These Combo PowerPak kits offer the best of strength in an all-forged aluminum alloy piston to allow for increased detonation resistance, and a combination valve pocket design that will cover LS1, LS3 and LS7 cylinder heads.

🔥 Now only $753.88

Call Kevin for Tuning Appointments or In House Scheduling ⬇️
📞 501-985-4947
💻 gwatneyperformance.com
📍 Jacksonville, AR
📧 [email protected]

08/04/2026
08/03/2026

Built In-House at GPI 💪🏽
⬇️⬇️⬇️⬇️⬇️⬇️
-Concept Block 427
-BTR x GPI LS3 Heads
-BTR Pistons
-CHE Trunnions
-Callie’s Ultra Rods
-APEX Crank

Drop your HP guess in the comments ✍️

Find this all this and more at gwatneyperformance.com (Link in bio) 🔗

Have questions? Please email [email protected] for all inquiries.

07/30/2026

Pump Gas vs Pump E-85 Engine Testing down at K***z and Company Racing engines

This engine got upgraded with a GPI SS4, BTR LS3 Heads, Carbon PTR Intake, and fuel system for some spicy rips on the dyno!

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

07/29/2026

Tyler Vedros Absolutely dialed in getting all of our shop jobs fired up and ready for tuning this week!

07/26/2026

Wait, what was that 4th one? 👀

Match your rid in style 😎

Hats available at gwatneyperformance.com 🖥️

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

Some things never go out of style 😎Whether it’s a classic, a truck, Camaro, Corvette, or Cadillac, we 've got you covere...
07/24/2026

Some things never go out of style 😎
Whether it’s a classic, a truck, Camaro, Corvette, or Cadillac, we 've got you covered on all GM platforms.

It's 2026. Time to find your fast.
Call Kevin for Tuning Appointments or In House Scheduling ⬇️
📞 501-985-4947
📍 Jacksonville, AR
🛠️ gwatneyperformance.com
📧 [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

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