Siebert Performance

Siebert Performance Home of Siebert Performance Engines and Carburetors.
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High-Performance Engine Shop | Topeka, KS
Custom Engines • Carburetors • Machining Service
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👉 Shop Online at Siebertperformance.com

🔥 677 BBC going back together. 🔥This nitrous-fed 677 cubic inch Big Block Chevy is currently going back together after a...
06/17/2026

🔥 677 BBC going back together. 🔥

This nitrous-fed 677 cubic inch Big Block Chevy is currently going back together after a complete rebuild. Along with the freshening process, it’s receiving a new set of rods and pistons to ensure it’s ready for another season of hard passes.

Looking forward to seeing this one back at the track. 💪

Check out our website
👉 www.siebertperformance.com , to see what we can do for you!

Moroso Performance Products, Inc., GRP Connecting Rods , Dart Machinery , Total Seal Piston Rings



🔥🔥👀👀🔥🔥Just wrapped up this ProCharged 565 BBC for a no prep customer.Can’t wait to see this one making passes and puttin...
06/02/2026

🔥🔥👀👀🔥🔥
Just wrapped up this ProCharged 565 BBC for a no prep customer.

Can’t wait to see this one making passes and putting the power to the ground, through all FOUR tires. 😈

👉 www.siebertperformance.com



03/25/2026

🔥A little flat tappet cam break-in on a 402 BBC Stock Eliminator engine this morning 🔥

👉 www.siebertperformance.com



The Reality of Engine Building in 2026One thing people don’t always see behind the scenes in an engine shop is how often...
03/18/2026

The Reality of Engine Building in 2026

One thing people don’t always see behind the scenes in an engine shop is how often brand-new parts show up with issues.

Here’s a good example from today.

These are two pistons from the same brand-new shelf set, and same batch number. Same wrist pin… two different results and neither are right.

• One piston – the wire locks install but clamp the pin so tight it can’t rotate
• The other piston – the wire locks won’t even fit because the groove is machined in the wrong location

This kind of thing has been happening more and more often lately, and it seems like every other project we work on has something that needs corrected or replaced.

Unfortunately, tracking down and fixing problems like this takes valuable time, but it’s part of doing the job right. If we don’t catch it here, it becomes someone else’s engine failure later.

👉 www.siebertperformance.com



03/12/2026

Little timelapse from the mill today installing down-leg boosters in one of our Pro Series Billet 4150 carburetors.

Choosing the right booster for the application is a huge part of getting the carb to behave the way the engine wants it to. 👌🏻

👉 www.siebertperformance.com



03/10/2026

We originally built this carburetor in 2024 and it’s back in for an off-season refresh.

A little ultrasonic bath to get the passages cleaned out, wash off seasons of dirty fuel residue, dirt, and grime… it’s basically a hot tub for carburetors. 🛁

Check out our site to see what we can do for your race program
👉 www.siebertperformance.com



03/03/2026

We cut the front off a brand new intake with a Sawzall this morning. 😳

Then stuck it in the mill and started machining the ends of the plenum out of it. 😳😳

Shiny aluminum paperweight or something cool? 👀

Drop your guesses below ⬇️

👉 www.siebertperformance.com

🚨 Carb Tech Talk 🚨What do YOU want to learn about carburetors? We’re lining up new videos and tech posts and want your i...
02/27/2026

🚨 Carb Tech Talk 🚨

What do YOU want to learn about carburetors?

We’re lining up new videos and tech posts and want your input. Drop your questions in the comments ⬇️

We want to build content around what helps you most. 👍🏻

👉 www.siebertperformance.com



🔥Check out this 632 BBC we wrapped up on the dyno last night. This one made 1,200+ horsepower naturally aspirated.🔥We te...
02/25/2026

🔥Check out this 632 BBC we wrapped up on the dyno last night. This one made 1,200+ horsepower naturally aspirated.🔥

We tested two different carburetors, did some tuning, and worked through the combination to get it where we wanted it.

What would you put it in — dragster, door car, or something else? 🏁

Check out the engines, parts, and services we offer at 👉 www.siebertperformance.com

Moroso Performance Products, Inc.
Total Seal Piston Rings
Bullet Racing Cams
Callies Performance Products
Wiseco Automotive

Address

5602 SW Topeka Boulevard, Ste D
Topeka, KS
66609

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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