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ProMaxx FOR85XN Replacement 6.0L Cylinder Head
★★★★★
Vehicle Fitment For:
2003-2007 Ford 6.0L Powerstroke
See full application list below
FROM 1261.11
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Description
The ProMaxx Performance Cylinder Heads are high quality replacements for your 2003-2007 Ford 6.0L Powerstroke. Built with thicker castings in crack prone areas, these heads undergo extensive testing and quality control to ensure that you receive the best product possible.
ProMaxx performs the following tests and procedures: All fuel rails are drilled and checked, All heads are push rod clearanced, glow plugs and injectors are test fit, all recession depths are checked, all heads are pressure tested, all holes are tapped including glow plug threads and each head gets an in-house valve job.
Sold individually as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install. Sold individually.
Features:
- New Casting
- Sold Individually
- No Core Charge!
- Improved Casting In "Problem Areas"
- Available For 18MM & 20MM Dowels
Note: Model year ranges are suggested applications. Please confirm dowel size on your truck before ordering.
Manufacturer Warranty*:
1 Year Limited
1 Year Limited
Shipping Restrictions Apply 
Instructions & Tech Info
Installation Info
Recommended Specialty Tools
Product Options
| PART NUMBER | MODEL YEAR |
|---|---|
| FOR850N | 03-05 (18mm) (8mm Rocker Carrier Bolts) |
| FOR851N | 06-07 (20mm) (10mm Rocker Carrier Bolts) |
Reviews
Overall Rating
/5
7 Reviews
Typical China product
carbon (california) | February 26th, 2020
Pro Max needs a guy in china over seeing production! My heads arrived and had all the valves at differant depths fron003 to 015 they spec @ .013 - .025 .020 IS PREFERED! not all over the place. these motors use valve depth to determine compression. So I spent 800 bucks on a vavle job and blue printed them myself. Not to mention they didn't have square dimensions but wedge instead of rectangle 1 of my exhaust manifold bolt holes needed to be tapped the correctly. They do have good valve seats though and are square where they need to be but having the whole job done in good old red china is what it is. They say 3-5 days but they have to order them from china so it will take 3 weeks. Thats what it takes for me to get my products made there if I wantedthem done there. XDPwas great in getting me the product but Pro Max has a quality issue I'd buy from another using the same supplier. If you meet the min you can have your name on them also from the same guy in china. And have them blueprinted.
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Frequently Asked Questions
Do the new cylinder heads come with new injector cups installed?
Yes, the ProMaxx FOR85XN Replacement Cylinder Head for the Ford 6.0L’s come with new valves, seals, springs, retainers, locks and injector cups already installed.
What is the warranty on the heads?
You have a 1 Year Warranty on the heads.
Do these have valve guide inserts and what material copper or steel?
They come with a steel guide casted in the head (no liner).
Do these heads have hardened or thicker cast valve seat areas? Valve seat cracks are prominent ares of failures due to cracks. Is this one of the "problem areas" that have the heavier casting and are the seats hardened?
The ProMaxx FOR85XN Replacement Cylinder Heads have a hardened valve seats.
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Specifications
ID
17894
Manufacturer Name
ProMaxx Performance
Shipping Weight
75.00 lb.
Fuel Type
Diesel
Manufacturer Warranty*
1 Year Limited
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Internal
LR
ITEM ADDED TO CART
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Product prices marked with an * may require additonal fees, such as a core charge, which will be displayed in the cart.