Specs: 233/250 .619"/.595" 113+5
The stage 4 LS3 grind has been utilized on many max effort combinations with great success. We see 500whp+ with the addition of proper bolt ons, while maintaining the durability you come to expect from BTR components. It is ground with nitrous in mind as well, working well with up to a 300 shot. For piston to valve to stay happy, you cannot mill your cylinder heads without the possibility of needing to flycut your pistons. An aftermarket converter is needed for automatic applications.
