Siebert Performance

🏁 Can’t ask for much more with a new carb! 🏁

Josh bolted on his new Siebert Performance 980cfm gas carburetor after making the switch from methanol and went straight to work — two No Box wins and a new personal best ET! 🏆🏆

Always great getting messages like this from our customers. Congrats Josh, and thanks for trusting us with your carburetor! 🤘

👉 www.siebertperformance.com

Anybody know where to get a valve cover gasket for an inline-6 LS engine? 😂🤣😂

Congratulations to Joe Lytle on taking home the Super Pro win BOTH Saturday and Sunday at Ardmore Dragway! 🔥

Also, congratulations to Rod Wolter on his Super Pro runner-up finish at Tri-State Raceway! 👏🏻

A special congratulations goes out to Clark Doukas and Gary Harper on picking up the Mod ET and Sportsman class championships at I29 Dragway this year! We wish them luck in Ohio at the World Finals!

Great job, guys, and thank you both for choosing Siebert Performance!

👉 www.siebertperformance.com

🤩 Just a few 4150 main bodies are on the schedule for booster installation this morning. There’s something satisfying about seeing a whole batch lined up and ready to build. 🤩

Time to get after it!

👉 www.siebertperformance.com

These are brand-new cylinder heads. During inspection, we found valve guide clearances as high as .0045”—completely unacceptable for a performance street engine.

We sent the heads back to the manufacturer and were told our measurements were wrong. After getting them back, I personally rechecked every guide, verified our measuring equipment, and compared multiple other heads and valves in the shop.

Our measurements were right.

So now I’m filming the inspection process to show the manufacturer exactly what we found.

Could I simply replace the guides, perform a valve job, and charge my customer? Sure.

But why should my customer pay to fix brand-new parts?

This is the reality of the performance industry today. We’re spending more time than ever documenting defects, proving our measurements, dealing with warranty claims, and fighting manufacturers over quality issues—all work that’s difficult, if not impossible, to get paid for.

It’s also one of the biggest reasons projects take longer today than they did just a few years ago.

Until manufacturers start taking quality control seriously again, we’ll keep doing what we’ve always done: checking everything. Because “brand new” simply doesn’t mean what it used to.

👉 www.siebertperformance.com

🔥 What a weekend at Cedar Falls Motorsports Park’s Night of Fire! 🔥

Congratulations to Tyler Risse on his Pro ET win and $5,000 Run-Off victory 💰 on Saturday!

Congratulations to Ross Wiebensohn on his Pro ET win 🏆 on Sunday!

Both Tyler and Ross started the season with brand-new Siebert Performance carburetors. Tyler is running one of our Pro Series Billet Methanol carburetors, while Ross is running one of our Sportsman Series Billet Gas carburetors. It’s always great to see our customers putting them in the winner’s circle! 👏

Congratulations guys, and thank you for trusting Siebert Performance!

👉 www.siebertperformance.com

Congratulations to Korey Neighbors on his $20,000 win at Xtreme Raceway and Corey Cummings on his Footbrake win at I-22 Motorsports Park this weekend! 🏆

We’re proud to be a small part of your success. Keep up the great work! 👊

👉 www.siebertperformance.com