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OEM Duramax cast aluminum cylinder heads fall short over time; the different heat expansion crates between cast iron engine block and cast aluminum cylinder head cause head gasket scrubbing, and eventually blown head gaskets. Aluminum cylinder heads are also prone to warping, melting, and/or cracking in high performance applications where excessive heat is introduced. Pacific Performance Engineering LLY/LBZ/LMM cast iron cylinder heads are the ultimate upgrade to your Duramax engine and eliminate any head gasket or cracking concerns. Cast from high-quality alloyed grey iron, PPE LLY/LBZ/LMM cylinder heads offer elevated fatigue strength and heat and creep resistance, which prolongs the cylinder head's lifespan significantly. They also share the same heat expansion rate as the stock cast iron cylinder block, so no more blown head gaskets. These cylinder heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue. Each head comes complete with brand new springs, spring retainers, spring locators, valves, valve seals, valve keepers, valve seats, valve guides, rocker arm dowels, and freeze plugs. Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the Pacific Performance Engineering LLY/LBZ/LMM cast iron cylinder head is undoubtedly the best choice. Component features and benefits: * Premium 21-4N, Stellite-reinforced exhaust valves, and chrome-silicon alloy intake valves * All valves are fully nitridated with increased abrasion resistance * High-strength, CNC-machined chromoly steel spring retainers and spring locators * Upgraded tapered valve springs provide faster response and eliminate valve float at high rpms * Powdered metal valve seats offer superior wear and heat resistance * Significantly reduced diesel engine clatter compared to the factory aluminum cylinder heads * Increased thermal efficiency compared to aluminum heads * 3-Year Unlimited Mileage Warranty
Not Yet Reviewed
$1,349.99
Replacing your stock exhaust manifold and up-pipes should be the first step in building a high performance exhaust system. Pacific Performance Engineering exhaust manifolds are co-designed by Honeywell (Garrett) and PPE, using CAD software to maximize flow characteristics. The included up-pipe bellows are high-flow, internally sleeved, and manufactured from 11-gauge, 0.120 in. wall aircraft-grade stainless steel with a 2 in. O.D. The exhaust manifolds are machined from high-silicon moly cast iron; feature built-in bosses; and are pre-drilled and tapped for a 1/8 in. NPT EGT sensor. PPE exhaust manifolds will help lower exhaust gas temperatures, reduce drive pressure, and accelerate turbo spool-up while maintaining reliability. Order the model recommended for your application.
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$1,070.98
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$1,520.99
Pacific Performance Engineering Stage4 automatic transmission rebuild kits are entry-level packages that are perfect for drag racing, sled pulling, towing, or even daily driver use. They will ensure that your Allison 1000 transmission can handle up to 850 hp at the crank (approx. 680 at the rear wheels) and up to 1,500 lbs.-ft. of torque without damage. The kits work extremely well for a stock truck, but were engineered to handle Duramax engines that have been equipped with multiple high performance modifications, such as performance chips, oversize injectors, and small nitrous kits. These rebuild kits include Pacific Performance Engineering's valve body recalibration kit (recalibration kit does not change shift points, only increases clutch holding power), a converter flow valve, and upgraded high-friction C1, C2, C3, and C4 clutches with Kolene steels. Models are available with or without triple clutch torque converter. Standard features: * C1 includes: 14 one-sided internal spline frictions (seven internal and seven external) and bottom apply plate * C2 includes: eight friction plates, eight steel separator plates, and bottom apply plate * C3 includes: five friction plates, four steel separator plates * C4 includes: six friction plates, five steel separator plates * Valve body recalibration kit with boost valve, pump shim, and gaskets * Available for LB7/LLY/LBZ/LMM Duramax engines with Allison 1000 transmissions
Not Yet Reviewed
$1,079.99
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$1,169.99
OEM Duramax cast aluminum cylinder heads fall short over time; the different heat expansion crates between cast iron engine block and cast aluminum cylinder head cause head gasket scrubbing, and eventually blown head gaskets. Aluminum cylinder heads are also prone to warping, melting, and/or cracking in high performance applications where excessive heat is introduced. Pacific Performance Engineering LB7 cast iron cylinder heads are the ultimate upgrade to your Duramax engine and eliminate any head gasket or cracking concerns. Cast from high-quality alloyed grey iron, PPE LB7 cylinder heads offer elevated fatigue strength and heat and creep resistance, which prolongs the cylinder head's lifespan significantly. They also share the same heat expansion rate as the stock cast iron cylinder block, so no more blown head gaskets. These cylinder heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue. Each head comes complete with brand new springs, spring retainers, spring locators, valves, valve seals, valve keepers, valve seats, valve guides, rocker arm dowels, and freeze plugs. Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the Pacific Performance Engineering LB7 cast iron cylinder head is undoubtedly the best choice. Component features and benefits: * Premium 21-4N, Stellite-reinforced exhaust valves, and chrome-silicon alloy intake valves * All valves are fully nitridated with increased abrasion resistance * High-strength, CNC-machined chromoly steel spring retainers and spring locators * Upgraded tapered valve springs provide faster response and eliminate valve float at high rpms * Powdered metal valve seats offer superior wear and heat resistance * Significantly reduced diesel engine clatter compared to the factory aluminum cylinder heads * Increased thermal efficiency compared to aluminum heads * 3-Year Unlimited Mileage Warranty
Not Yet Reviewed
$1,349.99
Pacific Performance Engineering GM 3.0L Duramax air-to-water intercooler kits add style and performance to your Duramax. The intercooler is 77 percent less restrictive than the stock GM model, featuring flow-optimized, cast aluminum end tanks and a 2.4 times larger, less restrictive core structure. These features along with their all-aluminum bar and plate-style construction and superior fin layout, PPE intercoolers deliver increased cooling with a cooler and denser charge air that also helps reduce exhaust gas temperature (EGTs), increases fuel efficiency, and lowers the pressure drop. PPE's Duramax air-to-water intercooler kits are completed with a diecast support bracket, a billet aluminum turbo adapter that replaces the turbo resonator, and PPE Performance silicone couplers and coolant hoses. They are available in several finishes. Choose the preferred color for your Duramax.
Not Yet Reviewed
$1,439.99
Pacific Performance Engineering Stage 5 transmission rebuild kits are designed to handle the high stresses of sled pulling and drag racing, yet also work extremely well for towing and daily driver tasks. These Stage5 kits are some of the strongest upgrades that PPE offers. Thanks to the valve body recalibration kit (recalibration kit does not change shift points, only increases clutch holding power), converter flow valve, and upgraded C1, C2, C3, and C4 clutches and Kolene steels, the Stage5 kits will hold over 1,200 hp at the crank (1,000+ RWHP) and 1,800+ lbs.-ft. of torque. Models are available with or without triple clutch torque converter. Order the kit recommended for your application. Features include: * Valve body recalibration kit, converter flow valve, pump shim, and gaskets * C1 includes: 16 one-sided internal spline friction plates, 1 bottom apply plate, 1 top pressure plate * C2 includes: 7 friction plates, 7 steel separator plates, 1 bottom apply plate for increased rigidity * C3 includes: 6 friction plates, 7 steel plates, 1 bottom apply plate for increased rigidity * C4 includes: 6 friction plates, 5 steel separator plates, 1 modified apply piston, 1 top pressure plate
Not Yet Reviewed
$1,256.59
Two is better than one. The single stock CP3 pump runs out of fuel well before peak power is produced. The solution is to install one of these Pacific Performance Engineering dual fueler CP3 injection pump kits. The dual fueler pump and factory pump work in conjunction, each delivering half of the total fuel volume requested by the engine computer. In the event of one pump failing, the electronic controller will automatically switch all fuel delivery responsibilities to the remaining operational pump. The kits will not produce more fuel pressure than the engine ECU requests; they will only increase fuel volume as needed to maintain ECU-requested fuel pressure. For racing applications, the Pacific Performance Engineering dual fueler CP3 injection pump kits can provide fuel flow to maintain fuel pressure to 26,000+ psi. They are essential for highly modified race engines that are seeking to produce up to 2,000+ hp.
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$1,259.99
When you outgrow the stock turbo, Pacific Performance Engineering T4 turbocharger installation kits give you the ability to bolt a bigger turbo and pipes under your hood. If you live and breathe diesel, a T4 kit will imbue your truck with the gut-flattening horsepower and stump-pulling torque you barely glimpse with your stock turbo. Their pedestal gives you the ability to mount any T4-based turbocharger, while other components are specifically engineered to make installation in your truck or van as easy as possible. Where diesel meets compression, you get power. When your truck needs a power growth spurt, order the Pacific Performance Engineering T4 turbocharger installation kit recommended for your application.
Not Yet Reviewed
$1,259.99
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