Simply the best head money can buy.
Massive has created the worlds TOP FLOWING CYLINDER HEAD SERIES for modern Ford 4 cylinders!!!
5 Axis CNC machined for the best in consistency and flow!
In our quest for power superiority, OE heads are flow tested on a Superflow SF-600 flow bench at 28” of water to determine base line flow numbers. After the initial flow test the heads were ported by hand to develop a working port shape and volume. The head was then reflowed after hand porting to verify the increase in flow. The heads are then reverse engineered using 5-axis digitizing to acquire the port shape of the finished port. This makes for the greatest possible flow capacity and consistency.
Heads begin as production cores which are fully disassembled and hi temp rwashed. The heads are then glass bead blasted clean to remove any rust or scale. They are then CNC machined using 5-axis simultaneous machining. All ports and chambers are machined then hand finished to blend out any unwanted tool marks. All valve guides are honed to size and a multi-angle valve job is cut into the head. The valve job is cut using Newen single carbide insert style cutters of varying profiles. The valve job is hand lapped in then blended to the finished port and chamber. The heads are then surfaced and reflowed again to confirm that the finished product performs as expected. Our designs outflow ANY competitor Zetec/Duratec head without sacrificing velocity. Substantial chamber modification for superior flow dynamics and greater resistance towards detonation. NEW on 2011’s heads:
Core return required (must be identical casting # on Duratec) or $200 core fee must be collected. Due to the specialized low volume nature of these products there can be some lead time for final assembly.
Several years ago we purchased an “Ultimate Head” and bolted it on our box stock ZX2 engine that already had Jenvy throttle bodies. We bought the head with Crower stage II cams. My God! With no other changes it turned our car into a rocket.
Our car is a Birkin (Lotus Seven Clone) and strictly a track vehicle. No other Seven, or even a lot of Corvettes and Vipers cannot beat it. If you are serious about power you cannot beat this option. We are so impressed we now have out second “Ultimate Head” for our new engine and using the old head for our back-up engine. If you want to make a “night and day” difference in your Zetec quit whining and spring for this head. It is well worth it.
I am not paid or compensated for this endorsement, I just know the results of using it and want to share some truthful facts. There are a lot of claims and bullshit out there but this is the real deal. I have been racing for over 50 years so I know of what I speak!
Folis Jones Racing (Birkin SS)(see customer rides)