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About Us

Started in January of 2002 Slowboy Racing Inc. started off specializing in only the 4G63 platform and since 2003 have been very active in the Subaru “EJ” platform as well. Our focus is to bring you the highest quality parts, the best service in the industry, technical help and advice, all at a reasonable price.

At Slowboy Racing we are building on our experience with over 800 race engine builds to bring you the highest quality machined parts, rotating assemblies, race engines, and valvetrain available. Race proven technology from all motorsports to include rally, Time Attack, drag racing, autocross, hill climb, and circuit racing allows us to bring you premium high end dual chrome silicone vanadium valve springs, titanium retainers, and machined lock kits along with black nitrided valves made of grade EV-8 stainless steel alloy.

Our in house cylinder head flow bench also allows us to bring you the highest quality cylinder head builds for your street car, weekend warrior, or flat out race car. We can build a cylinder head to your exact specification and have it to you in time for the big race.

From dyno tuning, to machined parts, to cylinder head flow bench work – at Slowboy Racing we are dedicated to taking your Mitsubishi and Subaru to the next level of performance.

We specialize in overseas ordering and shipments!

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Contact Us

Built Industries
Lake Mary, FL
Main: 321-304-4908
Fax: 321-304-4763
sales@builtind.com
candy@builtind.com
mike@builtind.com
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