Slate Performance Automotive
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Inquire with us today!
Specializing In:
• Service & Maintenance
• Performance Upgrades
• Power Packages
• Restorations
• Upholstery
• Dyno Tuning
• Engine Swaps
• EFI Conversions
• AND MUCH MORE!
08/20/2026
This is what a ground-up build looks like at Slate.
Every system, every component, every detail considered as part of the complete build. From drivetrain and chassis integration to custom fabrication and final fitment — it all comes together under one roof.
Built around the car. Built around the vision. Built to work as one.
Contact us today at -
📩 : [email protected]
📞 : (317) 661-3143
Nothing is simply bolted together.
Engine, transmission and driveline are integrated as one complete system — with placement, geometry, clearance and serviceability considered from the start.
Built specifically for this chassis.
Every section is measured, formed and routed for proper fitment, flow and clearance — not adapted from something off the shelf.
Packaging matters.
The system is tucked tightly within the chassis to maintain ground clearance without compromising routing, flow or accessibility.
Cut. Fit. Shaped. TIG-welded.
Keeping fabrication in-house gives us control over every joint, every transition and every detail from start to finish.
A ground-up build starts with looking at the entire car as one system.
Chassis, powertrain, fabrication and supporting components are engineered around each other from the beginning — because at this level, every detail affects the next.
This is what we do at Slate.
This Toyota Supra came in ready to make more power — and left with one of our in-house Power Packages!
Starting at 354 RWHP / 384 RWTQ, we added:
• BMS Billet Intake
• BMS Billet Strut Brace
• Oil Catch Can
• Turbo Heat Shield
• High-Flow Downpipe
• JB4 Performance Tuner
The result: 422 RWHP / 464 RWTQ.
+68 RWHP. +80 RWTQ.
More airflow. More response. More performance.
Ready to unlock more from your build? Start your Power Package with Slate!
Contact us today at —
📩 : [email protected]
📞 : (317) 661-3143
08/19/2026
DEAL OF THE DAY 🔥
Modern Muscle Xtreme Hellcat Max Effort Camshaft + Full Set of Hellcat Lifters
Designed to work with the stock bottom end and OEM torque converter.
$1,100 VALUE — NOW $900
OR GET IT FREE with a full Camshaft Power Package + Tuning.
Limited-time offer.
Contact Slate Performance Automotive today to get your build scheduled!
Contact us today at —
📩 : [email protected]
📞 : (317) 661-3143
Our team shows up every day with the same mindset — do it right and never cut corners!
From fabrication and performance to body, paint, upholstery, restorations and more, we work together toward one goal: building something we’re proud to put the Slate name on!
One team. One standard. Everything under one roof!
Contact us today at -
📩 : [email protected]
📞 : (317) 661-3143
Whatever your build needs, we keep it rollin!
Performance upgrades, restorations, custom builds, fabrication, body and paint, upholstery, service, dyno tuning—and everything in between. One team handling your entire build, all in-house and under one roof!
Ready to get yours started? Contact Slate Performance Automotive today!
Contact us today at
📩 : [email protected]
📞 : (317) 661-3143
Man..these things just make sense!
This 2023 Challenger Hellcat Jailbreak A8 came to us looking for some easy, reliable power without changing driveability. After a brief consultation, our signature 750rwhp package was the perfect fit for this visit. This package focuses on safe, sensible upgrades without changing driveability, reliability or becoming too invasive. We ditched the OEM supercharger pulley for the ZPE/GripTec 2.85in pulley & hub combo, along with a set of Fuel Injector Clinic 1000cc injectors for adequate fuel flow and lower duty cycles. We also added a MightyMouse Solutions catch-can for increased crankcase ventilation along with a Brisk Racing spark plugs. With expert tuning from Evolution Tuning & Performance, this simple package leaves our dyno making 754 rwhp and 675 ft lbs on a safe tune. Not bad for a mildly built Hellcat!
Do you have a modern vehicle you are looking to improve? Specializing In LS, LT, Coyote & Gen 3 Hemi, Slate Performance Automotive uses our years of experience to tailor performance builds to your desires. Everything from simple bolt-ons to full power packages & race builds, from classic cars, modern muscle and everything in between, trust Slate Performance Automotive for your next performance build. All builds backed by our 12-month 12,000-mile warranty.
Contact us today at
📩 : [email protected]
📞 : (317) 661-3143
Check out this 1971 International Scout II that came through the shop for a complete LS swap!
Originally powered by the factory 345ci International V8, this Scout made just 95 RWHP. We replaced it with a Chevrolet Performance LS3 backed by a GearStar Level 3 4L65E automatic transmission, boosting it to 321 RWHP and 363 lb-ft of torque at the wheels.
Along with the swap, we installed a CVF Racing Reaper serpentine drive system, built a custom TIG-welded stainless exhaust, rewired the entire vehicle, added air conditioning, custom Wegner coil covers, an ididit tilt steering column, 3-point seat belts, LED tail lights, and more. The result is a classic Scout with modern reliability and performance.
Thinking about a modern powertrain swap? Slate Performance Automotive has completed Gen III HEMI, Coyote, LS, and LT swaps in both classic and modern vehicles. From fabrication and wiring to installation and tuning, everything is done in-house to ensure your build is done right.
Ready to start your project?
Contact us at -
📩 : [email protected] or
📞 : 317-661-3143
Power your build! 🔋
Whether it’s a full restoration, resto mod, custom interior, fabrication, welding, paint and body, power packages, dyno tuning, service, window tint, or something completely custom—we do it all under one roof.
From the first idea to the final drive, every part of your build happens in one place, by one team that’s passionate about getting it right.
Contact us today at -
📩 : [email protected]
📞 : (317) 661-3143
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Telephone
Address
5802 Elmwood Avenue
Indianapolis, IN
46203
Opening Hours
| Monday | 9am - 5pm |
| Tuesday | 9am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 5pm |