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Description
Manton 7/16" Diameter Series 5 Pushrods (Set of 16) 08-10 Ford 6.4L PowerstrokeThe factory pushrods in your 6. 4 Powerstroke are designed for factory power and boost levels. As power increases, safeguard your engine with upgraded pushrods. And if you're rebuilding your engine, no time like the present for a big upgrade with a set of Manton Pushrods. These are a stock length pushrod, but built from superior materials and thicker walls for increased rigidity. Due to the increase in diameter, modifications will be necessary (see
The factory pushrods in your 6.4 Powerstroke are designed for factory power and boost levels. As power increases, safeguard your engine with upgraded pushrods. And if you're rebuilding your engine, no time like the present for a big upgrade with a set of Manton Pushrods. These are a stock length pushrod, but built from superior materials and thicker walls for increased rigidity. Due to the increase in diameter, modifications will be necessary (see notes below).11/32" STOCK DIAMETER VS. 3/8" DIAMETER:
The stock 11/32" diameter is the largest diameter pushrod that will drop right in without any modifications. However, by increasing the diameter of the tubing from the stock 11/32 to 3/8, the load is spread over a larger surface area without causing the pushrods to bind with the port of the cylinder head. 3/8" diameter will require the port hole of the head gasket to be relieved to fit the larger diameter. This larger diameter pushrod will provide almost 50% more loading capacity than a 11/32 diameter before beginning to deflect. Larger diameter is always a better choice when it comes to pushrods. In order to accommodate the 7/16" diameter pushrods, additional modifications may be necessary.
STAGE 5 PUSHRODS DEFINED:
Manton's Choice: Used in Top Fuel Dragsters which produce 11,000 horsepower. It is the strongest most durable chromoly pushrod ever produced. This pushrod has been engineered to maximize valvetrain stability for more overall power, torque and efficiency in all high performance diesel engines. Whether it is sled pulling, drag racing, dyno competitions, or heavy towing, these will extend valvetrain service life and maximize potential performance of all your other engine components you have invested in. By utilizing 4130/4135 chromoly tubing and proprietary heat treating techniques, Manton is able to achieve a 275,000 p.s.i. tensile strength from the tubing without causing it to become brittle.
WHY A THREE PIECE PUSHROD:
In simple terms, pushrods transfers energy from the lifter to the rockerarm. If a pushrod is not correctly matched to the application, incorrect valve lift and valve timing can cause engine failure. With a properly matched pushrod you will achieve maximum horsepower and ultimate valve train wear.
To achieve the proper pushrod for an engine, you must decide the pushrod length, diameter, wall thickness, materials, heat treating and end configurations to match the specific engine components and application. This may seem like a fairly easy process but to accomplish this there are several things that must be considered. This is why Manton only manufactures custom modular pushrods.
- Each end in a pushrod must be compatible with its mating components. This requires the use of material that can function as a bearing and at the same time be as impact resistant as possible. As an additional benefit, this also allows for an unlimited amount of tip designs.
- With a modular pushrod it allows the flexibility to choose "unique" tapers for clearance issues. Also changing the wall thickness, diameter and tapering the tube will change the natural frequency.
- The column of the pushrod must be made out of a different material and heat treated differently than the tips. It must provide the strength to withstand the combined abuse of high engine speeds and cylinder pressure. By using a dissimilar material from the pushrod end, Manton is able to utilize any heat treat desired. In most applications, Manton uses a material that is commonly available 4130/4135 tubing.
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4.0 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 4
An important contribution
The historiography of secession is a complex one. For much of the last century there had been a tendency for historians to underplay the importance of slavery as a cause of the American civil war. Certaintly neo-Confederate apologists have sought to euphemize the cause of the conflict to an issue over tariffs, to matters of states rights, or to the "extremism" of the abolitionists. It is quite clear that these excuses will not survive a reading of this book. Sinha clearly shows, in her examination of South Carolina secessionism from nullifaction to fort Sumter, that slavery was the essence of its concerns. To show this she looks at the nullification crisis, the Mexican war, the Compromise of 1850, the South Carolinian movement to reopen the slave trade, and the secession crisis, based on exhaustive research of no less than 137 sets of private papers and diaries.
But Sinha wishes not simply to refute the academically unimportant group of neo-Calhounites. She wishes to argue something broader. The South Carolinian defense of slavery was not, as many serious historians suggest today, simply the working out of the Southern American view of liberty. Increasingly, Sinha argues, South Carolina pro-slavery thought was not the expression of Southern Republicanism, but increasingly its very negation. It was not a coincidence that secessionism was strongest in South Carolina, the only state by 1832 where presidential electors and the governor were not popularly elected, where the legislature was crudely malapportioned, and where local offices were limited by the state government. It was also not a coincidence that slaves were a majority of South Carolinians, and slaveholders nearly a majority of South Carolinian whites. And it certainly was not a coincidence that non-slaveholders were noticeably less enthusiastic for nullification, secession in 1851 and secession in 1861.
But although Southern nationalist discourse was clearly elitist and pro-slavery, does Sinha show that it was counter-revolutionary? A certain opposition to democracy was evident after all in the many, perhaps most, of the founding fathers. But as Sinha points out leading Carolinians like Calhoun, Senator James Chesnut and the creepy, incestuous James Hammond all sneered at the Declaration of Independence. She quotes one bravado warping PatricK Henry to declare "Give me Slavery or give me death." Notwithstanding the views of some historians to the contrary the South Carolinians criticized the North less for its oppression of wage laborers than the possiblity that those laborers could vote themselves into power. They did not condemn Lincoln as an intolerant Protestant but as a dangerous socialist and feminist. Moreover, they were not slow to raise the Nativist card against the immigrants who were bolstering the North's population. Calhoun's idea of a concurrent majority was not a thoughtful protection of minority rights, but a way to prevent one minority, his own, from ever being outvoted. Once the Confederacy was set up the elite dispensed with political parties. Looking at South Carolina they also began to dispense with competitive elections, while its ruthless elite certainly did not act sentimentally (or even decently) towards opinions on slavery.
In conclusion there have been many frauds and bullies in American political life: the Nixons, the Hoovers, the McCarthys, the Tillmans and the Bilbos. But much of their malignancy was purely personal and they never threatened the core ideals of the republic. Calhoun was different, very different. Extremely intelligent, he was also utterly principled, and absolutely ruthless in carrying out that one principle. The problem was that the principle, despite all the complications of honor and paternalism, was slavery. More so than anyone else, Calhoun was the greatest enemy of liberty and freedom the United States ever had. Sinha's book is an important contribution to understanding that.
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Reviewed in the United States on December 29, 2000
★★★★★ 5
Great information on an understudied area
Format: Paperback
Thanks for an insight to the other side. Students of Southern history -- this is a must read. Pick it up
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Reviewed in the United States on August 1, 2013
★★★★★ 5
good deal
Format: Paperback
It was the book my Daughter needed for a course...saved money
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Reviewed in the United States on October 8, 2015
★★★★★ 5
Wow, this book was so useful
Format: Paperback
This book is so practical, so clearly laid out, so full of useful things. I am honestly in awe that someone took the time to make a book that is this helpful-- I can't imagine how many hours it must have taken to distill all of this knowledge and then present it in a readable way.
I am a geologist but not a petrologist, and I had to become a petrologist in a real hurry for a project that I was doing. I was really stumbling through the dark there until this book turned on the light. Never knew I could feel so grateful and indebted to a book about geochemistry.
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Reviewed in the United States on September 2, 2021
★★★★★ 5
Excelente guía
Format: Paperback
El contenido y la presentación es excelente para mi trabajo, cubre tanto geoquímica de rocas duras como geoquímica sedimentaria, para mi es muy util este último tema y como utilizar la data para interpretar cambios y correlacionar
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Reviewed in the United States on March 1, 2022