Texas Speed & Performance (TSP) Magic Stick 4 (MS4) Camshaft Specs (25-TSPMS4): 239/242 .649"/.600" 111.5 LSA 110 ICLThese camshafts have a 3-bolt timing gear pattern.
Texas Speed and Performance's Magic Stick line of cams are known for record setting power and are an excellent selection for max effort GM LS1/LS2/LS6 and even 5.3L/6.0L combinations. The MS4 cam is the largest of their Magic Stick line, and features an extremely aggressive idle and increased power over the MS3 cam.
From Texas Speed:
"The Magic Stick line of camshafts is the most popular line of camshafts Texas Speed offers. The Magic Stick camshafts are designed to be a all out max effort camshafts for people looking to get maximum power from stock displacement engines. The Magic Stick camshafts require a high quality double spring kit such as the TSP .660" double spring kits. The Magic Stick 4 features several upgrades over the Magic Stick 3 that helps to create a larger power band with improved horsepower & torque at virtually every RPM! The result is the most powerful LS1 camshaft we offer! With the MS4 camshaft the customer should have at least a 4000+ stall converter. Tuning will also be required in both automatic & manual applications."