BRIAN TOOLEY BTR Turbo Stage 3 Cam Kit - LS LS1 LS2 LS3 4.8 5.3 6.0 Brian Tooley Camshaft, BTR Platinum dual springs with Lightweight Titanium Retainers, and 7.400 Chromoly Pushrods. Cam specs are: 230/235 .609"/.610" 114+4 and comes a 3 bolt timing gear pattern. When you need a little more RPM than the stage 2 can give you. If you have a light car wanting to push the limits, then this is the go to cam for your 5.3/6.0 S400 equipped combination. Spring Specs are: 660" Lift Dual Spring Kit for LS engines using stock rocker arms. Includes dual polished springs, matching lightweight Titanium Retainers (faster reving than steel), Locators for stock guides, locks and seals. Pushrod Specs are: 7.400" Long 5/16 Chromoly .080 Wall Pushrods by Brian Tooley Racing. Highly recommended when upgrading Camshafts. We also recommend upgrading your Rocker Arms to Michigan Motorsports Rocker Arms with upgraded trunions