PQY Engine Valve Spring Compressor Tool for Modular Ford F-150 5.0L Mustang Coyote 4 Valve Engine Trac Magnetic Screw Retainer Black

This product works exactly as it shouldAll parts were in the boxWould recommend this to anyone doing valves on their ford 5.0l

Works well. No complaints

This tool really saves time and makes easy work if you need to remove multiple valves in the same head. No issues, just a practical solution.

Tool worked great, no problems. Replaced valves in a 2014 Ford F-150 5.0L engine.

This item would have 5 stars if it included the correct bolts.As noted in other reviews, the bolts that I received with the tool were just barely long enough to stick past the end of the mount. There aren't even enough threads for this to engage in the head (2013 Coyote 5.0) because the threads are recessed. I had to go to the hardware store and spend $10 for an additional 4 bolts of M6 x 55 1.00 Pitch. The new bolts worked perfect. I have no idea why they included such short bolts, I can't imagine them being ok to use on any heads with how few threads are available through the mount.Once I had the new bolts and used the spring compressor, it worked great. But the tool is useless without the longer bolts and if you don't have a hardware store nearby with the correct bolts, you are out of luck. The vendor should really change out the bolts and provide some that are the correct length.Attached picture of the mount shows the original bolt with 2.5 threads visible through the mount (foreground), new bolt through the mount (background), Original Ford (2013) Coyote 5.0 cam cap with original cam cap bolts for comparison (you can see the cam cap has some shoulder which is longer than the exposed threads of the original bolt making them completely useless, also note that I've tried to line up the base of the mount with the cam cap to show the length of OEM bolt and the provided bolt), and then on the right of the image is the shorter provided bolt and the new hardware store bolt for comparison.The vendor description says that the 41.5 mm long. They are not. Per standard bolt measurement procedure "Fastener length is measured from where the material surface is assumed to be, to the end of the fastener. For fasteners where the head usually sits above the surface, the measurement is from directly under the head to the end of the fastener. For fasteners that are designed to be countersunk, the measurement is made from the point on the head where the surface of the material is, to the end of the fastener." For these bolts the material would sit under the head, they appear to have measured from the top of the bolt. In addition, the bolt isn't even 41.5mm long which would have given at least a couple more threads but would have still been insufficient.Second picture shows caliper measurement of provided short bolt where it should have been 41.5mm.Third picture shows caliper measurement of new longer bolt at 55 mm.The bolts should probably be at least 45mm long at a minimum, probably 50mm to be safe. I went longer just to be on the extra safe side. I didn't want any chance of pulling threads in the aluminum heads. I compared the length of the exposed Ford bolts through the cam caps and measured the length of the bolts I would need to match the amount of exposed OEM bolt length through the mount to match what was exposed through the original cam cap. I arrived at 55mm. I verified that these bolts didn't bottom out in the head with the provided spring compressor mount.It's frustrating that the vendor would provide completely useless bolts with their mount. Even if the heads didn't have a recess making the exposed threads useless, 1.5 threads is not enough to secure the mount with a spring compressor. I'd worry that threads would strip easily either tightening it down or when the spring is compressed. It's also annoying that I had to spend 20+% of the cost of the tool (which came with bolts) to buy bolts that actually work.