If you're currently staring with a disassembled motor in your garage area, you're likely hunting for 6. 0 powerstroke heads 20mm to get that will truck back upon the road. It's no secret that this 6. 0L engine has a little bit of a status, but most associated with those headaches may be traced returning to the cylinder heads and the way they were clamped lower from your factory. Whether or not you're dealing along with a blown mind gasket or you've discovered the feared cracks involving the regulators, picking the correct substitute is the difference between a pickup truck that runs intended for another 200k kilometers and one that eventually ends up back upon a tow vehicle next month.
The first issue you've probably noticed is that you can find two different sizes: 18mm and 20mm. This refers in order to the size of the dowel pins that locate the head on the engine block. Ford producer made the switch partway through the 2006 model 12 months. When you have an previous truck, you likely have 18mm dowels, whereas the past due 2006 and 2007 models almost always use the 20mm edition. However, because a lot of of these engines happen to be swapped or even rebuilt over the particular last two decades, you can't often trust the year on the door sticker. You've got to actually look from what's under the hood before you decide to click on "buy. "
Why the scale Distinction Actually Matters
You might wonder why Ford made a decision to change a couple of millimeters on a dowel flag halfway through the production run. It wasn't just to make existence difficult when ordering components. The move to 6. 0 powerstroke heads 20mm had been part of the broader effort in order to strengthen the engine's top end. The particular larger dowels supply a bit even more shear strength and help to keep everything aligned better under the immense cylinder pressures these diesel engines generate.
When you try in order to put 18mm heads on the 20mm block, or vice versa, you're going to have a poor time. The openings won't line up, and even if you try to "make it work" with adapter dowels, you're introducing a point of failure. It's always best to match the top to the block you're working with. Many guys find that if their build date is after January 2006, they're in the 20mm camp, but measuring may be the only method to be 100% sure.
Dealing With the Common 6. 0 Head Failures
Let's be real: the factory Ford heads weren't perfect. In case you're looking regarding replacements, it's possibly because your originals are warped or even cracked. The six. 0 Powerstroke is usually notorious for getting a bit too hot, specifically if the EGR cooler or essential oil cooler begins to fail. When that warmth builds up, the particular factory castings—which are a bit thin in some spots—tend to fail.
The almost all common location for a crack is correct among the intake and exhaust valves. Sometimes these are just surface cracks that don't cause issues, but more frequently than not, they will eventually find their way into the water jacket. That's when you begin seeing "puking" from the degas bottle or white smoke cigarettes out the tailpipe. When you enhance to a quality collection of 6. 0 powerstroke heads 20mm , you're usually looking for something using a thicker deck and better metallurgy than what came through the factory back again in 2006.
The Benefits of Aftermarket Castings
A lot of guys in the diesel neighborhood swear by brand-new aftermarket castings instead of trying to save a few bucks upon remanufactured factory heads. The reason is simple: the aftermarket has got twenty years to figure out where Ford proceeded to go wrong. Many of the new 20mm heads available today feature reinforced combustion compartments and thicker inner walls.
These "heavy-duty" variations are designed to handle the additional heat and pressure, especially if you've got a tuner or larger injectors. If you're dealing with all the work of pulling the particular cab or inclined over the fenders intended for twenty hours, investing an extra few 100 bucks on beefier castings is generally a smart move. You really don't wish to accomplish this work twice.
Ought to You Opt for O-Rings?
If you're already buying 6. 0 powerstroke heads 20mm , you've possibly seen the choice intended for O-ringed heads. If you're planning on keeping the truck intended for the long haul or if you're chasing more hp, O-ringing is almost a no-brainer.
The process involves machining a small groove around each combustion chamber plus inserting a metal steel wire. Whenever you torque the head down, that cable bites into the particular head gasket, producing a much stronger mechanical seal compared to gasket can ever achieve upon its own. It's basically insurance against blowing another head gasket. It's a bit more expensive upfront, but it's the precious metal standard for the "bulletproofed" 6. zero engine.
Determining What You Need
Prior to you commit to a set of heads, you need to verify your dowel size. A person can usually discover the engine develop date on the particular driver-side valve cover or maybe the FICM (Fuel Injection Control Module) bracket, but once again, parts get inter-changeable.
The most foolproof way to check is to consider the heads once they're off. Consider a set of calipers plus measure the diameter of the dowel pins sticking out from the block. If it's roughly 0. 79 inches, you've got 20mm dowels. In case it's closer to 0. 70 inches, you're looking at 18mm. If you haven't pulled the heads yet, you are able to sometimes check the casting numbers near the intake manifold, yet measuring is the only way to rest soundly during the night knowing you ordered the particular right parts.
Installation Tips intended for a Lasting Fix
Getting the right 6. 0 powerstroke heads 20mm is only about half the battle. The installation is where many people make or even break their construct. First and primarily, you absolutely have got to use head studs. Using the manufacturing plant torque-to-yield (TTY) bolts with new heads is just requesting trouble. Brands such as ARP are the industry standard for a reason—they don't stretch like the manufacturing plant bolts do, which keeps a constant load on the head gasket.
- Cleanliness is definitely everything: The engine motor surface area needs to be pristine. Any leftover gasket material or even oil will avoid an excellent seal.
- Check the block for flatness: Just because you bought new heads doesn't mean your block out is perfectly flat. Utilize a precision straightedge to make sure.
- Vacuum the bolt holes: This can be a big 1. If there's essential oil or coolant within the bottom of the bolt holes when you rpm your studs, a person can actually break the engine stop because of hydraulic pressure.
- Make use of the right gaskets: Many pros recommend possibly genuine Ford Motorcraft gaskets or high-quality options like Victor Reinz. Don't cheap out here.
Final Thoughts for the 20mm Upgrade
It's easy to get frustrated along with a 6. 0 Powerstroke in order to starts acting up, but once you tackle the head issues properly, these motors are actually quite amazing. Earning great energy and sound much better than almost any other diesel powered on the road. By stepping upward to a strong set of 6. 0 powerstroke heads 20mm , adding several head studs, plus maybe choosing O-rings, you're turning a known weak spot directly into a strength.
Don't rush the procedure. Take the time to measure your dowels, choose a reputable supplier for your castings, plus follow the rpm sequences to the letter. It's a big job, certain, but performing it right the first period means you can get back to utilizing your truck for what was built for—pulling trailers and consuming up highway miles—without constantly checking the temp gauge in fear.