Never Use Scotch-Brite on Aluminum Heads
Scotch-Brite may have some usefulness in the engine shop, but one place it should NEVER be used is on aluminum cylinder head deck surfaces. Using Scotch-Brite is the equivalent of strapping a chain to the cylinder head, having a buddy stand on it and dragging it behind a car on the street. Your results will

Danny Soliz Says – Document Your Work
Danny Soliz of Hill Country Performance & Machine says no matter what you’re working on when it comes to engines, you should always document your work, especially when it comes to cylinder head work and all the valvetrain components involved. Danny also gives a few bonus tips in this episode.

Dart Machinery SHP Series Heads
These cylinder heads are manufactured using a proprietary process employing permanent molds and a dense aluminum alloy.

New Dart SHP Series heads
Based on the popular 23° valve angle configuration, this cylinder head features a revised port design to deliver significant power improvements at budget-friendly affordability.

AFR Acquired by Private Equity
Air Flow Research (AFR), a manufacturer of high-performance cylinder heads, intake manifolds and related components, has been acquired by Taglich Private Equity (TPE) in a partnership with AFR’s founding family and management. The company’s 42 production and office employees based in Valencia, CA, will remain with the current executive team and staff. AFR was founded
Rechecking Valve Jobs
In this episode of Steve Tech, Steve Morris covers why it’s a good idea to always check the valve job on cylinder heads, even when they are brand new from the manufacturer.

Powerstroke Upgrades
Marketed as the ICON series, these cylinder heads are a totally new, built from the ground up, clean sheet, USA design that will replace Kill Devil Diesel’s previous aluminum heads for Powerstroke applications.

Piston Quench & Cylinder Head Chamber Mods
In this episode of Steve Tech, Steve Morris breaks down what piston quench is and what kind of quench is ideal, as well as certain chamber modifications you can make to get better performance in your engine.

Ultra-Smooth Surface Finishes
Determining the correct surface finish means you must consider the metallurgy of the head and block castings along with the type of head gasket you use.

Induction System Science
The complexity of cylinder head set up and flow bench testing comes in the form of math, aerodynamics, thermodynamics, and the physics it takes to design the correct port and manifold design for a particular engine combination. These processes take years to master.

Motorcycle Valve Seats
As it related to valve seats, it is important to know a bit about the different materials used and when and where it is appropriate to use them.

Hoops for High Horsepower
The hoop offers better sealing against exhaust gases because rather than the pressure trying to escape from a flat-on-flat surface, the hoop creates a lock between the head and the block to better seal the engine.
