{"title":"PPE Head Studs \u0026 Main Studs","description":"\u003cp\u003eThat's right, there's more than one name in the head and main stud business! Pacific Performance Engineering, also known as PPE, delivers you head and main stud kits built from 8740 chromoly tested to withstand 231,900 psi tensile strength. If you're running more than 45 psi of boost in your Cummins, Duramax, or Powerstroke, its highly recommended that you ditch the stock style head bolts that are known to stretch and replace with a set of head studs. That is, unless you enjoy pulling your head(s) and replacing head gaskets!\u003c\/p\u003e","products":[{"product_id":"p-ppe-head-stud-kit-17-22-gm-66l-l5p-duramax","title":"PPE Head Stud Kit 17-25 GM 6.6L L5P Duramax","description":"\u003cp\u003eAdding more power to your L5P Duramax? Want to increase your durability and be more reliable? Already opening up the top end of your engine? Head studs are a no brainer to help with all of those situations. Head studs are an absolute must especially when upgrading your turbo. The factory head bolts have essentially one pressure point at the head of the bolt, whereas head studs create two points of pressure creating a much stonger hold on the head. \u003c\/p\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003eThese head studs have been tested and verified to have a tensile strength of over 231,900 psi and are strongly recommended for boost levels 45 psi and higher. Each kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for uniform load distribution and accurate torque readings.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077470220653,"sku":"PPE-118034700","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/118034700-1.jpg?v=1752691484"},{"product_id":"p-ppe-head-stud-kit-01-16-gm-66l-duramax","title":"PPE 118034300 Head Stud Kit 01-16 GM 6.6L Duramax","description":"\u003cp\u003eAdding more power to your 2001-2016 GM 6.6L Duramax? Want to increase your durability and be more reliable? Already opening up the top end of your engine? Head studs are a no brainer to help with all of those situations. Head studs are an absolute must especially when upgrading your turbo. The factory head bolts have essentially one pressure point at the head of the bolt, whereas head studs create two points of pressure creating a much stonger hold on the head.\u003c\/p\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003eThese head studs have been tested and verified to have a tensile strength of over 231,900 psi and are strongly recommended for boost levels 45 psi and higher. Each kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for uniform load distribution and accurate torque readings.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077493682541,"sku":"PPE-118034300","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/118034300.jpg?v=1752691551"},{"product_id":"p-ppe-218034300-head-stud-kit-985-21-59l67l-dodge-cummins","title":"PPE Head Stud Kit 98.5-25 Dodge\/Ram 5.9L\/6.7L Cummins","description":"\u003cdiv\u003eIf you're pushing more power out of your 5.9L or 6.7L Cummins, upgrading your turbo, or just want rock solid reliability, a PPE Head Stud Kit is a gotta-have-it.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eFactory head bolts only apply pressure at a single point, but head studs lock everything down with two points of pressure, giving your engine a much stronger hold and preventing head gasket failures under high boost. These head studs have been tested and verified to handle an incredible 231,900 PSI of tensile strength, making them ideal for any build running 45+ PSI of boost. Each kit includes hardened parallel washers, high strength nuts, and specially formulated assembly grease to ensure even load distribution and precise torque readings. For extreme high boost builds, the PPE High Yield Head Stud Kit takes it to another level. With an obscene tensile strength of over 288,000 PSI and a yield strength exceeding 254,000 PSI, these studs outperform anything else on the market.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eRegardless of whether you're daily driving, towing heavy, or running a full-blown race setup, PPE head studs give your Cummins the durability it needs to handle serious power with confidence.\u003c\/div\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"PPE 230,000 PSI Studs","offer_id":52077493879149,"sku":"PPE-218034300","price":413.99,"currency_code":"USD","in_stock":true},{"title":"PPE High Yield 288,000 PSI Studs","offer_id":52077493846381,"sku":"PPE-218034350","price":1214.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/218034350-1-1.jpg?v=1752691552"},{"product_id":"p-ppe-318034400-head-stud-kit-03-07-60l-ford-powerstroke","title":"PPE Head Stud Kit 03-07 Ford 6.0L Powerstroke","description":"\u003cp\u003eAdding more power to your 2003-2007 Ford 6.0L Powerstroke? Want to increase your durability and be more reliable? Already opening up the top end of your engine? Head studs are a no brainer to help with all of those situations. Head studs are an absolute must especially when upgrading your turbo. The factory head bolts have essentially one pressure point at the head of the bolt, whereas head studs create two points of pressure creating a much stonger hold on the head.\u003c\/p\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003eThese head studs have been tested and verified to have a tensile strength of over 231,900 psi and are strongly recommended for boost levels 45 psi and higher. Each kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for uniform load distribution and accurate torque readings.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077493944685,"sku":"PPE-318034400","price":413.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/3180344003.jpg?v=1752691552"},{"product_id":"p-ppe-318034600-head-stud-kit-08-10-ford-64l-powerstroke","title":"PPE 318034600 Head Stud Kit 08-10 Ford 6.4L Powerstroke","description":"\u003cp\u003eAdding more power to your 2008-2010 Ford 6.4L Powerstroke? Want to increase your durability and be more reliable? Already opening up the top end of your engine? Head studs are a no brainer to help with all of those situations. Head studs are an absolute must especially when upgrading your turbo. The factory head bolts have essentially one pressure point at the head of the bolt, whereas head studs create two points of pressure creating a much stonger hold on the head.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eThese head studs have been tested and verified to have a tensile strength of over 231,900 psi and are strongly recommended for boost levels 45 psi and higher. Each kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for uniform load distribution and accurate torque readings.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077493813613,"sku":"PPE-318034600","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/318034600.jpg?v=1752691551"},{"product_id":"p-ppe-318034800-head-stud-kit-11-21-ford-67l-powerstroke","title":"PPE 318034800 Head Stud Kit 11-25 Ford 6.7L Powerstroke","description":"\u003cp\u003eAdding more power to your 2011-2025 Ford 6.7L Powerstroke? Want to increase your durability and be more reliable? Already opening up the top end of your engine? Head studs are a no brainer to help with all of those situations. Head studs are an absolute must especially when upgrading your turbo. The factory head bolts have essentially one pressure point at the head of the bolt, whereas head studs create two points of pressure creating a much stronger hold on the head.\u003c\/p\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003eThese head studs have been tested and verified to have a tensile strength of over 231,900 psi and are strongly recommended for boost levels 45 psi and higher. Each kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for uniform load distribution and accurate torque readings.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077494075757,"sku":"PPE-318034800","price":629.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/318034800.jpg?v=1752691552"},{"product_id":"p-ppe-118034000-main-stud-kit-01-05-gm-66l-duramax","title":"PPE 118034000 Main Stud Kit 01-05 GM 6.6L Duramax","description":"\u003cp\u003e Protect the bottom end of your expensive Duramax engine with a set of Main Cap Studs from PPE. When you increase the power of your Duramax engine, it can significantly increase the stress on the stock main bolts causing catastrophic failure. This issue is addressed with a set of PPE main studs. These studs are thread rolled to a MIL-S-8879 specification for increased strength and precision centerless ground for accuracy. These studs have been tested and verified with a tensile strength over 231,900 psi. This kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for a uniform load distribution and accurate torque readings.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077495452013,"sku":"PPE-118034000","price":229.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/1180340002_1fc6cb23-dfc7-45ed-bf21-46b20af0f22e.jpg?v=1752691558"},{"product_id":"p-ppe-118034100-main-stud-kit-06-16-gm-66l-duramax","title":"PPE 118034100 Main Stud Kit 06-16 GM 6.6L Duramax","description":"\u003cp\u003e Protect the bottom end of your expensive Duramax engine with a set of Main Cap Studs from PPE. When you increase the power of your 2006-2016 Duramax engine, it can significantly increase the stress on the stock main bolts causing catastrophic failure. This issue is addressed with a set of PPE main studs. These studs are thread rolled to a MIL-S-8879 specification for increased strength and precision centerless ground for accuracy. These studs have been tested and verified with a tensile strength over 231,900 psi. This kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for a uniform load distribution and accurate torque readings.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077495484781,"sku":"PPE-118034100","price":229.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/1180340002.jpg?v=1752691557"},{"product_id":"p-ppe-218034300-head-stud-kit-89-98-59l-dodge-cummins-12-valve","title":"PPE 218034200 Head Stud Kit 89-98 Dodge 5.9L Cummins 12 Valve","description":"\u003cp\u003eAdding more power to your 12 Valve 5.9L Cummins? Want to increase your durability and be more reliable? Already opening up the top end of your engine? Head studs are a no brainer to help with all of those situations. Head studs are an absolute must especially when upgrading your turbo and are highly recommended for boost levels over 45 psi. The factory head bolts have essentially one pressure point at the head of the bolt, whereas head studs create two points of pressure creating a much stronger hold on the head.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThese head studs have been tested and verified to have a tensile strength of over 231,900 psi and are strongly recommended for boost levels 45 psi and higher. Each kit comes complete with hardened parallel washers, nuts, and specially formulated assembly grease for uniform load distribution and accurate torque readings.\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077591691629,"sku":"PPE-218034200","price":476.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/218034200.jpg?v=1752691863"},{"product_id":"p-ppe-exhaust-manifold-stud-nut-washer-kit-985-18-ram-59l-67l-cummins","title":"PPE Exhaust Manifold Stud, Nut \u0026 Washer Kit 98.5-18 Ram 5.9L \/ 6.7L Cummins","description":"\u003cp\u003eThe PPE Stud, Nut, and Washer Kit for your Cummins is designed to replace that rusty, seized hardware currently in your engine bay that is especially useful when swapping out and upgrading your stock exhaust manifold to avoid having to clean up your stock bolts. Further, by converting to studs as opposed to bolts, you'll have better clamping force to ensure a long term, leak free seal.\u003c\/p\u003e\n\u003cp\u003eOver time, repetitive heat cycles can take a toll on factory bolts, causing fatigue and stretching, ultimately resulting in troublesome exhaust leaks. This kit is specifically designed to replace worn-out or damaged studs, nuts, and washers on your Cummins exhaust manifold. Each PPE Manifold Stud is centerless ground and rolled with extreme precision, reducing stress concentrations, and increasing durability. The use of studs and nuts allows for precise torque reading and more even load distribution.\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077805928813,"sku":"PPE-216110200","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/216110200_Set1_72dpi_900x-4609.jpg?v=1752692494"},{"product_id":"p-ppe-12-valve-main-stud-kit-89-985-ram-59l-cummins","title":"PPE 12-Valve Main Stud Kit 89-98 Dodge 5.9L Cummins","description":"\u003cp\u003eYou depend on your Ram truck to get you through the day whether it's for work or leisure. The question is, can your truck depend on you to install the parts it needs to keep it going? Crankshaft misalignment and seal failure will happen if your main cap bolts fail in high-stress situations. Make sure you safeguard your engine and install PPE's 12-valve Main Stud Kit. Built out of premium chrome-moly alloy these studs have over 215,000 psi yield strength and over 230,000 psi tenstile strength. How does it do this? Each stud is heat treated before centerless ground and thread rolled so stress is evenly distributed and thus higher fatigue resistance. To top it off, each stud gets a black oxide finish so they look cool on top of resisting corrosion. Whether you are hauling bales of hay or pulling sleds, if you're using your  Cummins to its fullest extent get these in your engine now!\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077844136301,"sku":"PPE-218035000","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/PPE-218035000_2.jpg?v=1752692616"},{"product_id":"p-ppe-24-valve-main-stud-kit-04-07-ram-59l-cummins","title":"PPE 24-Valve Main Stud Kit 04-07 Dodge 5.9L Cummins","description":"\u003cp\u003eCrankshaft misalignment and seal failure will happen if your main cap bolts fail in high-stress situations. If you are pushing your Dodge with aftermarket upgrades to get more horsepower and torque, you are creating those high-stress situations that could result in catastrophic engine failure. Make sure you safeguard your engine and install PPE's 24-valve Main Stud Kit. Built out of premium chrome-moly alloy these studs have over 215,000 psi yield strength and over 230,000 psi tenstile strength. How does it do this? Each stud is heat treated before centerless ground and thread rolled so stress is evenly distributed and thus higher fatigue resistance. To top it off, each stud gets a black oxide finish so they look cool on top of resisting corrosion. Whether you are hauling bales of hay or pulling sleds, if you're using your Cummins to its fullest extent get these in your engine now!\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077844300141,"sku":"PPE-218035400","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/PPE-218035000_2_8d14e848-4f34-4c11-9aa4-1f58acea73ca.jpg?v=1752692617"},{"product_id":"p-ppe-12-valve-main-stud-kit-985-03-ram-59l-cummins","title":"PPE 24-Valve Main Stud Kit 98.5-03 Dodge 5.9L Cummins","description":"\u003cp\u003eYour Dodge Ram is more than just a truck to you, it's essential to your work and your time off. Whether you're in the field, job site, or race track you need to make sure it keeps running because catastrophic engine failure can put you out of commission which means less work done on top of costly repairs. Crankshaft misalignment and seal failure will happen if your main cap bolts fail in high-stress situations. Make sure you safeguard your engine and install PPE's  24-valve Main Stud Kit. Built out of premium chrome-moly alloy these studs have over 215,000 psi yield strength and over 230,000 psi tenstile strength. How does it do this? Each stud is heat treated before centerless ground and thread rolled so stress is evenly distributed and thus higher fatigue resistance. To top it off, each stud gets a black oxide finish so they look cool on top of resisting corrosion. Whether you are hauling bales of hay or pulling sleds, if you're using your  Cummins to its fullest extent get these in your engine now!\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077844332909,"sku":"PPE-218035200","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/PPE-218035000_2_06133d55-4422-4eea-9057-8c948aef373e.jpg?v=1752692617"},{"product_id":"p-ppe-24-valve-main-stud-kit-94-03-ford-73l-powerstroke","title":"PPE Main Stud Kit 94-03 Ford 7.3L Powerstroke","description":"\u003cp\u003eStress in your engine has a habit of building up as cycles cumulate and can turn into a broken gasket, worn fuel injectors, or even stretch out your head studs. The more aftermarket improvements you make to increase horsepower will also add stress to some expensive areas of your truck. Protect your engine and install PPE's Main Stud Kit. Built out of premium chrome-moly alloy these studs have over 215,000 psi yield strength and over 230,000 psi tenstile strength. How does it do this? Each stud is heat treated before centerless ground and thread rolled so stress is evenly distributed and thus higher fatigue resistance. To top it off, each stud gets a black oxide finish to look cool on top of resisting corrosion and an assembly lubricant packet for uniform load distribution. Whether you are hauling bales of hay or pulling sleds, if you're using your Powerstroke to its fullest extent get these in your engine now!\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077844627821,"sku":"PPE-318035000","price":229.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/PPE-318035000_1.jpg?v=1752692619"},{"product_id":"p-ppe-main-stud-kit-03-07-ford-60l-powerstroke","title":"PPE Main Stud Kit 03-07 Ford 6.0L Powerstroke","description":"\u003cp\u003eWhere your main cap bolts go, so too goes your engine. If stretching or breaking happens you lose crankshaft alignment and proper seals at the caps. Protect your engine and install PPE's Main Stud Kit. Built out of premium chrome-moly alloy these studs have over 215,000 psi yield strength and over 230,000 psi tenstile strength. How does it do this? Each stud is heat treated before centerless ground and thread rolled so stress is evenly distributed and thus higher fatigue resistance. To top it off, each stud gets a black oxide finish to look cool on top of resisting corrosion and an assembly lubricant packet for uniform load distribution. Whether you are hauling bales of hay or pulling sleds, if you're using your Powerstroke to its fullest extent get these in your engine now!\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077844726125,"sku":"PPE-318035200","price":229.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/PPE-318035000_1_8b08a9a8-aff0-4062-b25c-aa33243e5889.jpg?v=1752692619"},{"product_id":"p-ppe-main-stud-kit-08-10-ford-64l-powerstroke","title":"PPE Main Stud Kit 08-10 Ford 6.4L Powerstroke","description":"\u003cp\u003eHigh pressure and stress on your Powerstroke can take a toll on your engine. If stretching or breaking of your main cap bolts occurs you lose crankshaft alignment and proper seals at the caps. Protect your engine and install PPE's Main Stud Kit. Built out of premium chrome-moly alloy these studs have over 215,000 psi yield strength and over 230,000 psi tenstile strength. How does it do this? Each stud is heat treated before centerless ground and thread rolled so stress is evenly distributed and thus higher fatigue resistance. To top it off, each stud gets a black oxide finish to look cool on top of resisting corrosion and an assembly lubricant packet for uniform load distribution. Whether you are hauling bales of hay or pulling sleds, if you're using your Powerstroke to its fullest extent get these in your engine now!\u003c\/p\u003e","brand":"PPE (Pacific Performance Eng.)","offers":[{"title":"Default Title","offer_id":52077844857197,"sku":"PPE-318035400","price":229.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/files\/PPE-318035000_1_db61ed67-976e-43a9-961b-5e5ed48b9897.jpg?v=1752692619"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2487\/2301\/collections\/ppe_head_studs.jpg?v=1755891655","url":"https:\/\/dieselpowerproducts.com\/collections\/m-ppe_head_studs.oembed","provider":"Diesel Power Products","version":"1.0","type":"link"}