Honest engine work that keeps you running.
Sagi Speed Shop specializes in maintenance, performance upgrades, DOD deletes, and custom builds on GM LS & LT series engines — whether you want it to last another 200,000 miles or take it to the next level.
Professional service for GM LS & LT engines.
From routine maintenance to full custom builds — every job gets the same attention to detail.
Engine Maintenance
Routine service, diagnostics, and repairs to keep your GM running strong for the long haul.
Performance Upgrades
Cams, headers, intakes, and tuning — built to wake up your LS or LT and put real power down.
DOD / AFM Deletes
Done right the first time. Eliminate the lifter headache before it leaves you stranded.
LS Swaps
Drop an LS into just about anything. Mounts, wiring, fuel, cooling, and tuning — handled start to finish.
Custom Engine Builds
From mild street builds to full custom swaps. Tell us your goal — we'll get you there.
Not sure what you need?
Give us a call. We'll walk you through your options — no pressure, no upsell.
A small Oklahoma shop that treats every build like it's our own.
Sagi Speed Shop is a Collinsville-based garage focused on getting the absolute most out of GM LS and LT series engines. Whether you're chasing reliable daily miles or chasing tenths at the strip, we treat every project with the same care and attention.
- GM LS & LT focused — deep platform knowledge
- Honest pricing, no surprise add-ons
- DOD / AFM deletes done right the first time
- Clear communication from drop-off to pickup
- Locally owned in Collinsville, OK
Real builds from the shop floor.
A look at recent projects — from teardowns and DOD deletes to turbo setups and full custom builds.
What our customers are saying.
Real words from real people who've trusted us with their builds.
"If you are looking for a shop that actually takes pride in their craft, look no further than Jonah at Sagi Speed Shop. I've had Jonah build three different vehicles for me now, and the experience has been top-tier every single time. In an industry where it can be hard to find people you trust, Jonah stands out as someone who is completely open and honest. His communication is excellent; you're never left wondering what's happening with your build. What really sets Sagi Speed Shop apart are the extra touches — painting blocks and valve covers for free, the little details that show he cares about the overall aesthetic as much as the performance. He treats every project like it's his own."
"Sagi Speed Shop went above and beyond, meeting my needs and exceeding expectations. Everything from communication, timeliness, updates, etc. Very happy with the results on my truck and knowing the engine will last for many more years. I highly recommend them!"
"Great guys, quality work."
Ready to talk about your build?
Call or stop by the shop — we'd love to hear what you're working on.
See the latest builds on Facebook.
Get behind-the-scenes shots, finished projects, and shop updates straight from Jonah.
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