Fit for 283 305 327 350 383 400 engine with small block, it can make the engine work well. It greatly helps distribute the load on the hood bolts, to better seal the hood gaskets. Professional manufacturing, fine workmanship and long service life. Check the details below to make sure this part fits. It is suitable for all engines with 1 4-20 threaded bolts, not suitable for pontiac and suitable for FE engines with 5 16-18 thread. Chrome 4 3 4in valve cover holds spreader bars pressed, with stable features and professional performance., Weight: 0.71 Pounds, Manufacturer: Akozon