Engine Pro GM GEN III IV LS LSX 4.8 5.3 6.0 Stage 4 3-Bolt Camshaft 525/525 LiftEngine Pro Stage 4 camshaft. May require computer tuning. Requires valve spring upgrade. Please message us with questions.

Spring Rate (lbs/in): 408 lbs

Guaranteed to pass magnetic inspection testing

• Hydraulic Flat Tappet

Manley 4340 steel forged h-beam connecting rods with ARP 2000 bolts

030 Bearing Set - Cam CC400 STD Gasket Set - Full C305LM-24 Timing Set TS499A Oil Pump EPK140 Expansion Plug Kit PK1

-Crankshaft Gear

Large Journal Main Bearings Set

Improve surface mating of rotating assembly

2 oil pump inlet gasket

While it features a 102mm air inlet that was designed for the FAST™ Big Mouth 102mm Throttle Body™

-Superior oiling at high RPM

89mm Bore 94-94   With 5/8" tube