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MAX PERFORMANCE

Engine • Machining • Performance Parts

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About Us

SMC Performance & Machine in Monroe, WI provides top-tier machining, engine building, and custom performance services. From small go-kart motors to diesel truck and tractor engines, our engine machine shop handles standard and custom high-performance builds. Our experienced team delivers precise engine work with reliable results backed by years of hands-on experience, and is equipped to meet your needs.

Our Services

  • Engine Building

    Engine Building

    High-performance engine builds, rebuilds, and optimization.

  • Custom Machining

    Custom Machining

    Precision machining for automotive, industrial, and specialty applications.

  • Performance Upgrades

    Performance Upgrades

    Upgrade packages for cars, trucks, off-road vehicles, and motorsports.

Looking for SMC Automotive Repair? Click Here.

Our Affiliations

Pro Charger Superchargers logo with yellow and black swirling design.
Logo for Texas Speed & Performance featuring a stylized map of Texas with a star and American flag colors, and bold text reading 'Texas Speed & Performance'.
A logo for the Engine Builders Association featuring the word 'AERA' in bold blue letters.

Customer Reviews

  • SMC has built a few engines for us since we moved our shop and they have done an excellent job. Thanks guys, keep up the good work.

    Stefano B.

  • Steve and his crew are our go to machine shop for all of our customer’s bottom end rebuilds. Fantastic work, transparent, and attention to detail.

    Cam P.

  • Steven is a great person and very knowledgeable, his machinist Alex is the best I've had the pleasure of doing business with!

    Charlie L.

Leave Us A Review

Gallery

View fullsize Engine built to your needs. No limits! What would your ideal engine be? Drop comments below ⬇️
View fullsize Did You Know We Keep Driven Oil In Stock? Ready When You Need It! We Like Using This Oil Because It Has All The Right Ingredients Your Engine Needs To Survive.
View fullsize *** Price Drop! 😱 Now Asking $7,500! This Is A Perfect Engine For Your Hot Rod! *** $$$ FOR SALE $$$ ** BOOST READY ** LQ4 BASED 24X STOCK CRANK 365 CID 11.27:1 317 HEADS STAINLESS 2.02 INT 1.6 EXH PAC HP OVATE BEEHIVE SPRINGS PRW TRUNION UPGRAD
View fullsize Start Off 2026 With This Short Block! $$$$$$$ FOR SALE $$$$$$$ 332 LS SHORT BLOCK (no cam, heads, timing chain, oil pan, valve covers, timing cover, rear cover, or valley cover) $3500
View fullsize $$$$$$$ FOR SALE $$$$$$$ 332 LS SHORT BLOCK (no cam, heads, timing chain, oil pan, valve covers, timing cover, rear cover, or valley cover) $3500
View fullsize $$$ FOR SALE $$$ ** BOOST READY ** LQ4 BASED 24X STOCK CRANK 365 CID 11.27:1 317 HEADS STAINLESS 2.02 INT 1.6 EXH PAC HP OVATE BEEHIVE SPRINGS PRW TRUNION UPGRADE ARP HEAD STUD & ROCKER STUD KING TRI METAL MAIN & CON ROD BEARING DSS K2 261
View fullsize $$$ FOR SALE $$$ ** BOOST READY ** LQ4 BASED 24X STOCK CRANK 365 CID 11.27:1 317 HEADS STAINLESS 2.02 INT 1.6 EXH PAC HP OVATE BEEHIVE SPRINGS PRW TRUNION UPGRADE ARP HEAD STUD & ROCKER STUD KING TRI METAL MAIN & CON ROD BEARING DSS K2 261
View fullsize $$$ FOR SALE $$$ LQ4 BASED 24X STOCK CRANK 365 CID 11.27:1 317 HEADS STAINLESS 2.02 INT 1.6 EXH PAC HP OVATE BEEHIVE SPRINGS PRW TRUNION UPGRADE ARP HEAD STUD & ROCKER STUD KING TRI METAL MAIN & CON ROD BEARING DSS K2 2618 FORGED 4.005 +6 D
View fullsize $$$ FOR SALE $$$ LQ4 BASED 24X STOCK CRANK 365 CID 11.27:1 317 HEADS STAINLESS 2.02 INT 1.6 EXH PAC HP OVATE BEEHIVE SPRINGS PRW TRUNION UPGRADE ARP HEAD STUD & ROCKER STUD KING TRI METAL MAIN & CON ROD BEARING DSS K2 2618 FORGED 4.005 +6 D
View fullsize $$$ FOR SALE $$$ LQ4 BASED 24X STOCK CRANK 365 CID 11.27:1 317 HEADS STAINLESS 2.02 INT 1.6 EXH PAC HP OVATE BEEHIVE SPRINGS PRW TRUNION UPGRADE ARP HEAD STUD & ROCKER STUD KING TRI METAL MAIN & CON ROD BEARING DSS K2 2618 FORGED 4.005 +6 D
View fullsize Happy New Year!!
View fullsize
View fullsize Looking to freshen up the heart of your classic or muscle car..... stop in, message us, or give us a call today. (608) 325 1989
View fullsize #sheilasdreamracing Upgrading to a twin turbo setup on the forged bottom end LQ4 build we did for them. #eaglespecialtyproducts #dssracingpistons
View fullsize Couple LS house builds ready for machine and assembly.... will be posted up for sale when done. Stay tuned.....
View fullsize Check this beauty out! LC9 build for one of our builds next door in the repair shop. Want one just like it? Stop in, message us, or give us a call. (608) 325 1988.
View fullsize Check this beauty out! LC9 build for one of our builds next door in the repair shop. Want one just like it? Stop in, message us, or give us a call. (608) 325 1988.
View fullsize Couple LS house builds ready for machine and assembly.... will be posted up for sale when done. Stay tuned.....
View fullsize 2JZ in the line hone for billet cap installation. The beginning steps to a 4 digit HP #!!
View fullsize A couple old turbo chrysler 8 valve intake manifolds ported for JRS Customs!

Contact Us

Monroe, WI

Please provide your information, and we will contact you soon. We look forward to connecting with you.

smc.performance.machine@gmail.com
(608) 325-1989

Visit us

1020 3rd Ave #7
Monroe, WI 53566