Description
If you’re running a crate 604, 602, or small-block Chevy with stud mount rockers, valve spring maintenance demands a tool built for precision and reliability. The LSM SC-800 Valve Spring Compressor eliminates guesswork and potential damage by securing springs safely during removal and installation on 7/16″ stud systems. Whether you’re a professional engine builder or dedicated racer, this USA-made tool pays for itself on your first major rebuild.
Key Features:
- Designed for 7/16″ stud mount rockers
- Handles up to 1,000 lbs seat pressure
- Adapts to 3/8″ and 5/16″ studs
- Direct bolt-on installation
- Made in the USA
- Accommodates springs 0.800″–1.600″ diameter
Specifications:
- Weight: 3 lbs
- Dimensions: 12.45″ × 7.06″ × 3.78″
- MPN: SC-800
- Tapered flange retainer housing
- Optional adapter kits available
- Application: 7/16 stud mount rocker assemblies






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