Chevy BBC 454 Hyd Roller Cylinder Head Top End Engine Combo Kit These manifolds require a universal

These manifolds require a universal 4-barrel throttle body

It is similar to our LowRise

It also features nitrous bosses and rear water ports

6 rib serpentine pulley designed to increase grip

Speedmaster Keychains are the perfect way to let everyone know where you go for high performance aftermarket parts and accessories

Chevy BBC 454 Hyd Roller Cylinder Head Top End Engine Combo Kit These manifolds require a universalDon't spend hours figuring out which pieces and parts you need to get what you want from your engine. Speedmaster has already done the work for you; our Top End engine kits will save you the time and hassle of mixing and matching components yourself. These kits are specifically designed to deliver the performance you want, at a better price than purchasing the parts separately.