GPI Dominates Street Car Invasion at Newport Dragstrip!

Mike Pestka made Gwatney Performance Innovation proud this weekend at Street Car Invasion / Speedy’s Newport Dragstrip. Here is a highlight reel in case you missed it! Keep an eye out for some seriously sketchy passes by Mike Pestka and Matt Almond. They put on a great show for all!

Part 2: The Hunt for LS3 Cam Only 9’s Continues…

Ben was able to make some substantial improvements to his personal best time in his GPI SS4 NFC powered LS3, but was it enough? It’s hard to believe just 12 months ago this same cam only (non-GPI cam that is…) car was running 12.4’s. Check out some footage of his runs at Super Chevy! https://youtu.be/1H8r3SDDxe4 […]

Jeff’s Heads & Cam C6 Z06 on the Dyno

Thanks Jeff for trusting us with your gorgeous 2008 Corvette Z06. This round of mods included: GPI LS7 Custom Grind Camshaft (242/260 .630/.630 113+4) GPI LS7 Cylinder Heads Harland Sharp Roller Rockers Lingenfelter LS7 Oil Tank Expansion Callaway Honker Intake System Kooks Long Tube Headers GPI Tall (Blue) Valve Covers GPI Duno Tuning With a […]

Southern Outlaw: 2018 Season Award Ceremony @ GPI!

Rob Powell 2018 Points Champion Daniel Hughes Sportsman of the Year Daniel Hughes Rookie of the Year 2018 was another exciting season for Southern Outlaw Late Model Series.  We love supporting motorsport events and helping our friends win races all over the country. For those who couldn’t make it, here is a roundup from the […]

LS7 Valve Drop Issue. What you need to know!

It seems a lot of questions, concerns, information and misinformation exists related to the LS7 valvetrain issues.  We felt it might be helpful to our dealers and customers to summarize what we have learned over time about these issues. THE INFAMOUS CONCERN I just purchased a C6 Z06 and I am reluctant to drive it […]

GPI SS4 Cam Only LS3 (Stock Heads) Gunning for 9’s!!

Check out this video of Ben Weishaar yesterday – in his “Cam Only” LS3 powered FLOP GEN – running our new SS4 (No Flycut) Camshaft! Can he run a 9 w/ stock heads?! https://www.youtube.com/watch?v=w9yZey7FNQs Update 4/15/19: She’s a little faster now… Want to get a GPI SS4 (No Flytcut) camshaft too?

Huge L83 & L86 NA Head & Cam Performance Gains (+100rwhp!)

LT’s are the new LS’s! The performance truck market continues to grow at a staggering rate – with huge popularity going back to the early LS trucks. The L83 (5.3L) and L86 (6.2L) performance potential is especially promising due to these modern generation LT engines offering so much more power and technology than its predecessor […]

Introducing the GPI Track Tuned Program

We are very excited to introduce our new Track Tuned Program! Our Track Tuned Program was born out of our passion for racing, and our desire to push our customers cars to the absolute limits.  We break records when you break records.  We win when you win. Racing is all about having the competitive edge, […]

Cale Attempting a Record Standing Mile Pass in his 1200+rwhp Z06

At the Ultima Mile May 2018 event, Arkansas own – Cale Hopkins – set the Standing Mile Event Record at 223mph. This is what happened when he attempted to break his own record at the October 2018 event… C6 Z06 Build: LSX Cast Iron Block Callies Crank & Rods Diamond Pistons Procharger F1X (25psi) Brodix […]

White Motorsports – 620HP MAX Performance LS3 Powered Buggy!

Want to go for a ride in this insane 620hp off road buggy? Check out the Dirt Riot Series point leading White Motorsports buggy – packing a GPI built 416ci LS3 – topped with our GPI MAX Performance LS7 Head and Cam package.   Learn More about our MAX Performance LS7 Head and Cam Package […]

Standing Mile Racing is Back in Arkansas!

October 20-21, 2018 Event Register Now! Upcoming Event: Location: Blytheville Gosnell Regional Airport 4701 Memorial Dr Blytheville, AR 72315 Event Date / Time: October 20th, 2018 7am – 7pm October 21st, 2018 7am – 1pm Want more information? Ready to push your car to the limit in a standing mile race?  Visit ultimamile.com to register for the […]

GPI Flex Fuel Kit for 2014+ C7 Corvette Now Available!

This Kit Uses: PLEASE NOTE: This kit can be installed prior to tuning, but in order to take full advantage using ethanol-based fuel you will need HP Tuners or EFILive tuning software and access to a dyno / competent tuner. Once the kit has been installed and the engine has been calibrated, the ECM will take […]

DRIVEN Synthetic Oil Change Packages Now Shipping!

We’ve been fans of Joe Gibbs Racing’s DRIVEN Synthetic Oils for years.  They have what believe is the highest quality & best value synthetic oil in the business, and most importantly – it is what we use on all new engines and shop builds.  If you want the oil Gwatney Performance uses and recommendeds – check […]

Brandon Hill’s 6th Gen Dominated the Modified Class at Camarofest 8!

Ready for some CamaroFest 8 highlights?! Kicking it off – Brandon T. Hill II in his incredibly consistant 6th Gen. He ran 10.4’s-10.5’s all weekend long in 100 degree heat, AND was the fastest car in the Modified class (outside the high dollar shop cars).   With a personal best time of 10.1 @ 134mph […]

Breaking the 5th Gen SBE Record AGAIN!

Congratulations to Ryan Stevens for breaking the Stock Bottom End 5th Gen Record AGAIN! 9.87 @ 133mph in 3300 DA. This achievement didn’t come easy. After having traction issues all day Friday, we painfully watched the SBE record slip away to a competitor. Knowing that Ryan’s car had more in it – a group of our GPI […]

GPI’s Ryan Stevens Sets New SBE NA 5th Gen Camaro Record!

Congratulations to our own Ryan Stevens for setting the new Stock Bottom End NA 5th Gen Camaro Record!  After years owning the 5th Gen NA record with his previous 416ci setup – he decided to reenter the Stock Bottom End ring.  In preparation for CamaroFest 2018 – he decided to start from scratch with a […]

Wild 200+ MPH Rides at The Ultima Mile 2018!!

There is no better way to prove your car, than a standing mile race! If watching 1k+rwhp cars being pushed to the absolutely limits (and sometimes beyond) is your thing – we have that in common!   We had an incredible time supporting our friends, making new friends, and helping everyone push their cars to […]

Solving the LT1 / LT4 Fueling Issues!

It’s a well known fact the direct injected LT1 / LT4 engines have fuel starvation issues at high boost levels – which leads to blown rings and melted pistons. We are developing a port fuel injection system system (similar to the new ZR1) utilizing the 42 Autosports Port Injection Control Kit and Haltech EMS to supplement the factory fuel […]

Bulletproofing the LT1 for Big Boost with GPI’s LT1 Drop in Piston / Rod Package!

Bulletproofing the LT for Boost The LT series GM engines are incredible powerplants as designed – however unlike their predecessor (LSx) – the LT’s commonly rebel when power adders such as superchargers, turbos, and nitrous are added. unlike the LS – the LT’s commonly rebel when power adders such as superchargers, turbos, and nitrous are […]

Testing and Tuning the 620hp White Motorsports Buggy

#TeamGPI is proud to welcome our newest sponsor – White Motorsports (@WhiteMotorsports4878) and the 620hp GPI powered MAX Performance LS3 w/ LS7 Top End. This competition ready Jimmy’s 4×4 Bloodline Podium R is freshly tuned, and ready for the 2018 Dirt Riot Series Season which begins March 17th in Laredo, TX. Good luck this season […]

Lifters, Lash and Preload. What you don’t know won’t hurt you, or will it?

In speaking with our customers, and browsing various automotive forums – I have observed a lot of confusion and misinformation concerning hydraulic lifter operation and preload specification. I have concluded it may be helpful to provide some information on this subject. Anatomy of a Hydraulic Lifter A hydraulic lifter isn’t too complicated. It consists primarily […]

Chapter 2: Engine Dyno of the MAX Performance Package

THE ENGINE DYNO RESULTS ARE IN! 150HP MORE THAN STOCK LS3! Here is our latest testing of the LS3 / L99 MAX Performance Head & Cam Package. We’ve taken the goodness of the LS7, and adapted it to the LS3 / L99 platforms, to create a package that is the best of both worlds! The […]

(Available Now!) The Brand New MAX Performance Head & Cam Package for LS3 / L99!!!

After many months of working in secret – we are proud to introduce the GPI MAX Performance Head & Cam Package for LS3 / L99 applications! This package is not for the faint of heart. With a huge powerband, torque down low, and an explosive LS7 top end – this is a no compromise NA […]

760 rwhp 6.2L Swapped Twin Turbo Sleeper 4WD Silverado!

This has been a very special build for us.  If you’ve ever dreamed of going absolutely crazy on a build, and making something absurdly fast that was never designed to – check this one out! Just imagine the look on that proud Z06 owners face when you demolish them from a light in an unassuming […]

GPI’s Valve Spring Compressor Tool for the Gen V LT is Officially Available!

GPI Exclusive! For those of you with a C7 Corvette, 6th Gen Camaro SS, or any Gen 5 LT powered truck or SUV (Silverado, Sierra, Tahoe, Suburban, Yukon, or Escalade) – we are happy to annouce our new Valve Spring Compressor Tool!  No more risking damage to your head by using the current Valve Spring […]

2006 Chevrolet Corvette Z06 Dyno Results with GPI Heads / Cam!

The Sad Story. This Z06 came to us after a very unfortunate “high RPM event”.  We are told it was trailered all the way from Mexico to see us, but sadly – the situation was pretty bad.  The internals of the motor look to have been used in a Blendtec commercial – suffice to say, […]