Chevy BBC 454 Hyd Roller Cylinder Head Top End Engine Combo Kit It also features nitrous bosses

It also features nitrous bosses and rear water ports

It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs

Made from 5051 aircraft aluminum alloy

They feature lightweight construction with a thick rail for gasket support

Couple this Hi-Ram intake with the high flowing Ford Coyote style cylinder heads has outstanding potential for naturally aspirated and forced induction applications

Chevy BBC 454 Hyd Roller Cylinder Head Top End Engine Combo Kit It also features nitrous bossesDon'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.