Cam Thrust Plates (5pk) SBC 305/350 3.900

The Cam Thrust Plates (5pk) SBC 305/350 3.900 by EngineQuest are essential internal engine components designed to control camshaft endplay in small-block Chevy engines. These thrust plates maintain precise clearance between the camshaft gear and the engine block, preventing excessive forward or backward movement that can lead to timing errors, valve train noise, and premature wear on critical components. Whether you're rebuilding a 305 or 350 cubic-inch small-block, these plates are mandatory for proper camshaft installation and long-term reliability.

Manufactured from high-strength steel and finished with black oxide coating for corrosion resistance, each plate measures 0.115 inches thick and is engineered to tight tolerances required for small-block Chevy applications with a 3.900-inch bore spacing. The black oxide finish protects against rust during storage and engine operation, while the steel construction withstands the constant pressure and thermal cycling of the engine environment. The set of five plates provides coverage for complete engine rebuilds or gives you spares for future projects, ensuring you have the correct thrust plate thickness on hand.

These Cam Thrust Plates are ideal for engine builders, restoration enthusiasts, and mechanics performing complete small-block Chevy rebuilds. Proper thrust plate selection is critical—incorrect endplay can cause cam timing to shift under load, resulting in poor performance and potential engine damage. The 3.900 bore size designation ensures correct fitment for standard 305 and 350 blocks, making this five-pack an economical choice for shops maintaining multiple vehicles or for enthusiasts planning future engine work. Always verify your engine's original bore specification and consult your rebuild manual for proper installation depth and clearance.