Manton High Rev High Boost Valve Springs 03-10 Ford 6.0/6.4L Powerstroke
SKU: 55065261520

Manton High Rev High Boost Valve Springs 03-10 Ford 6.0/6.4L Powerstroke

Sale price$148.34 Regular price$164.82
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Description

Manton High Rev High Boost Valve Springs 03-10 Ford 6.0/6.4L PowerstrokeNow you want to run higher boost in your 6. 4L Powerstroke, or maybe you're looking to move your power band further up the RPM range on your 6. 0L with a new camshaft, you're going to want to replace your valve springs to a set designed to hold your valves closed when they need to be closed, but still able to open when necessary. In a situation with the purchase of a new camshaft, the cam card will dictate the recommended spring ratings to ensure you

Now you want to run higher boost in your 6.4L Powerstroke, or maybe you're looking to move your power band further up the RPM range on your 6.0L with a new camshaft, you're going to want to replace your valve springs to a set designed to hold your valves closed when they need to be closed, but still able to open when necessary. In a situation with the purchase of a new camshaft, the cam card will dictate the recommended spring ratings to ensure you get the maximum performance out of the cam without floating valves.

Manton provides a full 32 spring set of high boost and high rev ready valve springs with 123lbs of seat pressure over the factory 80lbs, and 284lbs of open pressure. With that, you can feel confident that your valve train will open and close as it should, and not be a hinderance to your performance build.

Valve float can be a problem for those with high boost builds and higher RPM performance in the 2003-2010 Ford 6.0 and 6.4L Powerstroke, or for those with very little backpressure from the exhaust from hood stacks with large diameter piping. Valve float is exactly as it sounds, instead of fully closing during the engines cycle, the valve springs do not have enough force to hold the valve closed and thus, the valve "floats". You may see a dip in RPM, hear the engine stumble, or in extreme cases, find bent push rods during a tear down. You may experience a rattle in the valve train as well, which could be an indication of pending failure.

Prevent this with a fresh set of valve springs from Manton.

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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 55065261520

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Derrick Logan
Lake Worth, US
★★★★★ 4
I like it
Color: grey, Color: grey
It’s not expensive but well made. The tack thing doesn’t spin. Idea for daily wear with a nice look to it. I gave it a 4 because the tact thing doesn’t spin and I like a larger watch face. All in all I may buy more as fashion watches for daily use.
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Reviewed in the United States on March 11, 2026
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Kevin Okeefe
Carnegie, US
★★★★★ 5
Beautiful watch!
Color: silver black
Love it!! Great looking and excellent quality watch...looks like a Rolex Daytona. So far keeps perfect time.
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Reviewed in the United States on February 10, 2026
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Dean
Phoenix, US
★★★★★ 1
Not water resistant
Color: silver black, Color: silver black
Have had it less than a month, shower and swim with watch on. Water is under the face. Very disappointed in the quality, I get it is a relatively cheap watch, but quality should be better than this. Will never buy again.
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Reviewed in the United States on April 24, 2026
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Martha A Calvillo
Alexandria, US
★★★★★ 3
Water is getting into the watch.
Color: silver white
It’s a nice watch. I own pieces from other brands, and I stopped wearing this one for about a month; when I decided to put it back on, it was still running. I found this odd, since it’s supposed to be an automatic watch—meaning you need to wear it to keep it wound and functioning—and it supposedly doesn't use a battery. Another thing: every time I wash my hands, water gets inside the watch, even though it’s rated for a depth of 30 meters. I have my doubts as to whether it’s truly an automatic or not. Does anyone else here own one?
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Reviewed in the United States on April 15, 2026
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carlos cortez b
San Leandro, US
★★★★★ 5
satisfied
Color: silver white
great item
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Reviewed in the United States on May 10, 2026

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