6.7l Hi-test block 4.020″ bore


SKU: 07-B-004 Category: Tag:


want to make 1250hp, but don’t want to do a deckplate? This is the solution!

-4.020″ bore but can be machined all the way to 4.250″

-OEM 6.7 deck height

-Cam oiling from mains has been shrunk from 7mm to 5mm for improved bottom end strength

-The thinner the wall, the less cylinder pressure you can run without failure 😉

-Hi-test alloy is 20% stronger than OEM 250mpa castings




Additional information

Engine Model

Engine Type


Type (Street Only)