The 4.2-liter called the GMT360 platform home. Bore, -2.00cc Head Volume, Chevy, LS, Set of 8, 5.0 out of 5 stars Larger brakes borrowed from the Trailblazer EXT and sticky BFGoodrich tires helps shave 12 feet of its 60-to-0 distance for a total of 120 feet. Valve recess depth. Regular grade gasoline was recommended. . ), production of the LL8 also ended. Bore, Chevy, 4.8L, 5.3L, Set of 8, Estimated USA Ship Date: Apr 25, 2023, Pro LS 2618 Forged Pistons. You must log in or register to reply here. The Atlas program began in 1995 along with the planning for GM's next-generation mid-size SUVs and pickup trucks. The Trailblazer SS competed most closely with the Jeep Grand Cherokee SRT-8, which debuted for the 2007 model year. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). And thanks to the number of valves, their sizes were kept small to help with cooling. Constructed from a plastic-like composite material, the valve cover was held in place with 21 grommets and fasteners that work with the main silicone seal to keep the cover floating atop the head. At around $38.00 with Free S&H one might think that its TOO . Mar 13, 2023 The compression ratio was dropped from 10.1:1 to a milder 8.5:1, oil jets were added to help cool and lubricate the undersides of the pistons, and 2.0-mm shorter connecting rods with thicker piston pins increase the engines durability. Estimated International Ship Date: The increase in displacement resulted in power increases as well, boosting horsepower to 242 at 5,600 rpm and torque to 242 pound-feet at 4,600 rpm. POWERED BY UEESHOP. Dual forced pin oiling on most applications, Lateral gas porting on higher compression ratios. The engine redline is 6,300 rpm. International Customer Options|In the United States? There is a lot of great information if you are interested in installing or modifying a Vortec 4200 inline-six. With the closure of the Moraine, Ohio, plant and the discontinuation of the GMT360 platform (Chevrolet TrailBlazer, GMC Envoy, etc. Bore, Chevy, GMC, Set of 8, 4.86 out of 5 stars 68SS ZZ4, 4sp T-10, 12 bolt, getting painted<P>78Z28, 330hp vortec, TH350, 10 bolt (just finished) And speaking of those individual ignition coils, the Vortec 4200 came with six of them (Obviously). Talk to the experts. GM even used its relatively new manufacturing method for the Atlas engine block and cylinder head. The LLR also corrected the head issue found in the L52. Molnar Technologies H Beam rods are extremely strong performance parts which are machined from billet 4340 steel, and then heat treated to provide improved strength. May 2, 2020 #1 The guys on Hot Rod Garage are building a couple of 4.2l engines to compare with the Barra (an Aussie) engine. Jan 29, 2018 214 Yakima, Washington. The Trailblazer SS debuted for the 2006 model year and had 395 horsepower and 400 pound-feet of torque. This is a custom order part. With a turbocharger and some tuning, this simple GM SOHC inliner is now making 470 flywheel horsepower and 450 lb-ft of torque with a mild 8 psi of boost while limiting the factory rotating assembly to just 5,800 rpm. Monday 3/6/2023 Engineers added twin Aerodyne turbos tuned to generate 8.5 pounds of boost. Learn how your comment data is processed. Still, that doesnt negate the unique nature of GMs forgotten inline engine family. The Vortec 2800 was the standard engine for the Colorado, Canyon, and Isuzu i-280. On this Wikipedia the language links are at the top of the page across from the article title. Saturday 3/4/2023, Pistons, Dish, Competition Series, Forged Aluminum, 4.030 in. On this episode of HOT ROD Garage, hosts Tony Angelo and Lucky Costa are going to take on the legendary Aussie engine, the Ford Barra. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine. Those are the "Vortec" heads, regardless what the engine cover says. Bore, Chevy, 4.8L, 5.3L, Set of 8, Estimated USA Ship Date: Exclusive V-rib adds strength without adding weight but allows maximum cooling. (79), Summit Racing Pro LS Forged Pistons SUM-326943780-2F, Summit Racing Pro LS Forged Pistons SUM-326943780-7F, Summit Racing Pro LS Forged Pistons SUM-326945780-2P, Summit Racing Pro LS Forged Pistons SUM-326945780-7P, Diamond Pistons Competition Series Pistons 11545-R1-8, Diamond Pistons Competition Series Pistons 11543-R1-8, Diamond Pistons Competition Series Pistons 11519-R1-8, Diamond Pistons Competition Series Pistons 11546-R1-8, Speed-Pro Hypereutectic Pistons H1132CPA .50MM, Diamond Pistons Race Series Pistons 21557-RS-8, Summit Racing Pro LS Forged Pistons SUM-1109273810-5, Summit Racing Pro LS Forged Pistons SUM-326943810-2F, Diamond Pistons Competition Series Pistons 11512-R1-8, Summit Racing Pro LS Forged Pistons SUM-110927381012, Summit Racing Pro LS Forged Pistons SUM-1109273820-5, Diamond Pistons Competition Series Pistons 11589-R1-8, Summit Racing Pro LS Forged Pistons SUM-326945810-7P, Summit Racing Pro LS Forged Pistons SUM-326943785-2F, Summit Racing Pro LS Forged Pistons SUM-326945810-2P, Diamond Pistons Competition Series Pistons 11521-R1-8, Speed-Pro Hypereutectic Pistons H1132CPA .75MM, Summit Racing Pro LS Forged Pistons SUM-326943810-7F, Diamond Pistons Competition Series Pistons 11517-R1-8. The Vortec 3500 saw service in GMs compact pickups, the first-generation Chevrolet Colorado and GMC Canyon. The engines use GM's Vortec name, and Straight-4, Straight-5, and Straight-6 engines are all part of the same family, sharing the same manufacturing equipment, rods, pistons, valves, and other parts. Although more expensive to buy and maintain than piston singles due to the additional engine and its associated costs, piston twins provide superior speed, interior space, payload capacity, and takeoff and climbing performance. JavaScript is disabled. It may not display this or other websites correctly. As a result, they form a uniform body with extreme strength. Called the Lost Foam Casting technique, it basically uses a pre-shaped block of Styrofoam buried in sand. It produces 242hp (180kW) at 5,600 rpm and 242lbft (328Nm) at 4,600 rpm. The factory plugs were rated to last 100,000 miles before replacement. Forged solid skirt This type of piston can mainly be found in high performance series production and racing engines. The steel water pump pulley was used to power the clutched cooling fan to pull cool air through the radiator. The engine redline is 6,300 rpm.[6]. This kept torque levels at near-peak levels throughout the rev range and allowed a higher maximum horsepower without killing fuel efficiency or hindering drivability at lower rpm levels. The system used an electronic throttle with no mechanical linkage between the gas pedal and the throttle body. More compression is good. F. Wieser also spent additional time plumbing a separate oil cooler and oil pressure reduction valve to limit feed into the turbo at 45 psi and prevent seepage around the oil seal for the shaft bearing. Apr 25, 2023 It has four valves per cylinder, utilizes dual-overhead cams (DOHC) design, and features variable valve timing on the exhaust cam, a first for GM inline engines. The system operated at 350 kPa and used Multec II injectors that were more precise than past injectors. Source: Vortec 4200 Wiki via Grassroots Motorsports. Herzog Motorsports also ran another Vortec Trailblazer in the Best In The Desert Nevada 2000. The intake manifold was kept short in order to accommodate easy access to the spark plugs. ( 7 ), Estimated USA Ship Date: Will fit Vortec style heads. That Atlas family had three main members, the front-running 4.2-liter inline-six, the 3.5-liter five-cylinder, and the 2.8-liter four-cylinder. This combination allowed for the production of 1.06 horsepower per cubic inch a total of 270 horsepower at 6,000 rpm. Tuesday 3/7/2023. The piston pins are packed in a way that protects them from corrosion and they are enclosed with the piston, as are the pin locking devices (if required). Critical rod dimensions are are held to very precise tolerances of +/- .0001 of an inch, which is the tightest tolerance you will find in the performance and racing aftermarket. The pistons and con rods must always be assembled in the prescribed installation direction. Off the shelf aftermarket domed pistons for the 1996-2002 5.7L V8 "Ramjet 350" L31 engine may be available and they may fit the 4.3L V6 engine with 1996 and later Vortec heads but I have never noticed . Because of the high temperatures at the piston top and the ring belt, intensive cooling is provided with oil circulating through the cooling channel. Ring carrier pistons with pin boss bushes These pistons for diesel engines have a ring carrier made from special cast iron that is connected metallically and rigidly with the piston material in order to make it more wear resistant, in particular in the first groove. Both trucks were introduced for the 2004 model year and used the five-cylinder as the extra-cost engine option over the Vortec 2800 four-cylinder. The result is a super detailed engine block that requires very little rough machining. This coil-on-plug design helped eliminate wires while providing 25 millijoules to each plug for a hot, fast burn. GM canned the project, however, electing to use the 6.0-liter LS2 V-8 instead. [4], The LLR (also called Vortec 3700), is a straight-5 DOHC engine with dual balance shafts produced from 2007 through 2012. High/Low/Average 1 - 1 of 1 Listings. Estimated International Ship Date: A bearing beam, or ladder, connected the seven main bearing caps longitudinally, further stiffening the block. It is filtered by a combination of Fram HP8A full-flow and Amsoil bypass filters that clean the oil every 45 minutes of engine run time. Over the course of those projects hes gathered a lot of information on the motor and shares it on the Vortec 4200 Wiki. 470HP Vortec 4200 GM Inline-SixJeff Wieser, Dublin CA. This included the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Oldsmobile Bravada, Isuzu Ascender, and Saab 9-7X. 3.810 bore, 1.326 C.H., 7cc dish, Std. Features like coolant passages, oil galleries, and oil drain-back passages were cast directly from the foam, eliminating the need to drill into a pre-formed cast block. Our Promise: More Precise, More Quicker, More Satisfying. Introduced two years after the Vortec 4200, the Vortec 3500 used nearly all the same parts and construction practices as its six-cylinder brother. Estimated International Ship Date: Torque was rated at 275 pound-feet at 3,600 rpm, but 90 percent of peak torque was available between 1,600 and 5,600 rpm. As Truck Trend pointed out in its 2002 review, these performance stats put the twin-turbo Trailblazer squarely against the then-current BMW X5. It would be better if it was longer. ( 2 ), Estimated USA Ship Date: All browsing and transactions within are secured by an SSL Certificate with high-strength encryption. In many instances, MAHLE is asked to supply the pistons for an OE manufacturer's high output, premium engines. Wieser thinks he can squeeze 10 pounds of boost out of the turbo to make 500 hp, but he also has plans for a new, more aggressive 4200 with forged pistons, aftermarket rods, and a later '07 head that will allow him to punch the power up to perhaps 600 hp with 14 to 15 psi. Vortec 4200 Dubbed the LL8 or Vortec 4200, the naturally aspirated engine displaced 4.2 liters, used a double overhead cams with four-valves per cylinder and had variable valve timing on the exhaust side. Estimated International Ship Date: The engine simply wouldnt fit in other applications. AUTOTHERMATIK- / HYDROTHERMATIK These pistons are used mainly in gasoline and diesel engines for passenger cars under heavy load conditions. 2003 saw a slight bump in power to 275hp (205kW), while torque was unchanged. The episode is #40, with an air date of 5/1/2020. KingTec Racing (Wuxi) Co., Ltd. is focus on R&D high performance racing cars spare parts for more than 17 years. The Vortec 4200 featured a deep-skirted block that added strength to the crank area. This was designed to quell vibrations to the components mounted above, including the individual ignition coils. The long crankshaft presented its own set of inherent challenges. Estimated International Ship Date: Estimated International Ship Date: An air-to-water intercooler kept temperatures down, and a slew of new internal parts kept the Vortec 4200 humming along. That meant it could use the same engine mounts and accessories as the V-8, saving parts costs and engineering expenses. The Atlas program got its start around the same time, with GM sold on the benefits of an inline engine. It could be had in either RWD or AWD. The 4200 also relies on an electronic throttle that Wieser has retained on his turbo version. To make the rods even stronger, they are shot peened which increases fatigue life. [5], The LLV (also called Vortec 2900) is a 2.9L; 178.3cuin (2,921cc) straight-4 DOHC engine produced between 2007 and 2012, with a 95.5mm 102mm (3.76in 4.02in) bore and a stroke. GM Chevy Vortec 4200 4.2L Inline 6 Connecting Rods Molnar Technologies H Beam rods are extremely strong performance parts which are machined from billet 4340 steel, and then heat treated to provide improved strength. Estimated International Ship Date: Wieser's current engine is still plenty efficient, as he reports the current 8 psi/42 lb/hr injector package delivers 21 mpg split between highway and in-town driving. The package generated an impressive 400 horsepower at 5,200 rpm and 400 pound-feet of torque at 2,500 rpm. The cam would then rotate relative to the cam sprocket, creating the different camshaft profile, which changed the timing of the exhaust valves opening. Find CHEVROLET 7.4L/454 Chevy big block Gen VI Pistons Forged aluminum Piston Material and get Free Shipping on Orders Over $99 at Summit Racing! Surface: Shot-peened surfaces to relieve stress. Up to 3,000 tons of force forges aluminum slugs into the basic piston form which creates a grain flow pattern in the structure providing excellent strength, ductility and improved heat dissipation. Part of GMs sizable investment into the Atlas project afforded room for future advancements. Dish Pistons with 4 valve relief. standard on Trailblazer and Trailblazer EXT, 4.2-liter, DOHC inline six-cylinder w/cast aluminum block, dual overhead camshafts, variable cam phasing exhaust cams, sequential fuel injection, electronic throttle control. Sutter was able to give us a deeper insight into the Atlas program, so keep reading for more. Filter my search results to see Summit Racing brand parts. Price Range Filter Options Savings Central Selected Filters Part Type: Pistons Make: CHEVROLET Engine Size: 5.7L/350 MAHLE pistons are OE quality and have many premium OE features. Even GMs lineup of V-6 engines is impressive, ranging from the 60-degree V-6 that powered nearly every GM car from 1980 through 2010, up to the twin-turbocharged V-6 powering the Cadillac ATS-V. Rather than the 6.0-liter small-block V-8 that would eventually power the Trailblazer SS, Chevy bolted on a pair of turbochargers to the 4.2-liter. Again built by Herzog Motorsports and driven by Ragland, this GMC Envoy race truck took home the overall win for the 2000 Pikes Peak Hill Climb. For 2006, power was increased to 291hp (217kW) at 6,000 rpm and torque to 277lbft (376Nm)) at 4800 rpm with the addition of a MAF and a complete internal redesign of the engine; however, due to the new SAE rating procedures, ratings can vary slightly between years. Original poster. Pro LS 2618 Forged Pistons. So let's travel to a distant land; affect your best English accent and repeat after us, And now for something completely different. The V-6 was essentially a V-8 with two cylinders removed, much like the relationship among the Atlas engine family. Pistons with cooled ring carriers For these pistons, ring carriers and cooling channels are combined into one system in a special production process. As you were browsing something about your browser made us think you were a bot. King Tec Racing produces high performance forged connecting rods for GM Chevy Vortec 4200 DOHC set of 6 and forged pistons and crankshafts for high performance racing cars. It replaced the LK5 and produced 185hp (138kW) at 5,600 rpm and 190lbft (258Nm) of torque at 2,800 rpm. Controlling the power was GMs Hydra-Matic 4L60-E four-speed automatic transmission with slight modifications to handle the extra power. Icon Chevy 350 Vortec Forged Pistons, .163 Dome, 6.0 Rod made by Icon Pistons, for as low as $580.99. [2], The Atlas engines feature aluminum cylinder blocks and heads, with the cylinder bores featuring replaceable steel cylinder liners.[1]. It produces 175hp (130kW) at 5,600 rpm and 185lbft (251Nm) of torque at 2,800 rpm. Jeff Wieser wanted exactly that for his '69 Pontiac Firebird Sprint. Inliner Member 1716 65 Chevelle Wagon and 41 Hudson Pickup Information and parts www.12bolt.com. Joined: Nov 2019. These matching horsepower and torque figures would mirror changes taking place with the Vortec 4200 for the 2004 model year. However, Sutters team devised an ingenious method of mounting the front differential directly to the driver side of the engines oil pan and running the passenger side axle shaft directly through the sump. Two-stroke These pistons are mainly used in gasoline and diesel engines for passenger cars under heavy load conditions. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck, Estimated USA Ship Date: Four drivers tag-teamed the race and included Brian Stewart, Mark Miller, Bekki Freeman and Ryan Arciero. The 2007 model year saw significant changes to the Vortec five-cylinder. The entire engine line was definitely set up to add technology to better power and efficiency. Though Sutter didnt specify, a modern take on the engine could include direct fuel injection, cylinder deactivation, and even turbocharging. Pistons. General Motors contracted with Falconer, a specialty engine builder, to construct a 5.0-liter, high-performance version of the inline-six. The engine features a 3.70-inch bore and a 4.00-inch stroke (258ci) and uses a pair of overhead cams to drive the four valves per cylinder. Apr 25, 2023, Pro LS 2618 Forged Pistons. The pistons have cast-in steel strips and are slotted at the transition from ring belt to skirt section. For a better experience, please enable JavaScript in your browser before proceeding. Diamond Pistons announces the release of its direct replacement forged piston for Chevrolet 8.1L (496ci) big-block marine engine applications. Saturday 3/4/2023, Pistons, Hypereutectic, Flat, 3.780 in. With pin boss bushes made from a special material, the load-bearing capacity of the pin boss is increased. Sutter has been involved with engine programs for the last 30 years, ranging from Oldsmobiles Quad Four to Cadillacs current V-Series mills. The Atlas engines were produced at the Flint Engine South plant in Flint, Michigan, while the I4 and I5 versions were produced at the Tonawanda Engine plant in Tonawanda, New York, near Buffalo. Whats more, the individual coils could better control spark timing. B16A Forged Pistons; B20 Forged Pistons; AMC. (43), In Stock, Including at a Supplier. Nevertheless, the Vortec 4200 and its Atlas family soldier on in millions of GM vehicles the world over. Piston Rings. Who says you need eight cylinders to have a party? The original manifold was a composite material he thought wasn't going to withstand boost pressures. Pooling fuel will seep past piston rings and contaminate the engine oil, so this was a huge advantage. Marks spare time was heavily consumed by reading automotive magazines and wondering how in the heck people could land a job testing cars all day. The Vortec 4200 was controlled by a drive-by-wire system, another first in a GM truck application. Each ICON piston is purpose built from the ground up for extreme high-performance street or racing applications. Saturday 3/4/2023, Pistons, Flat Top, Competition Series, Forged Aluminum, 4.070 in. You are using an out of date browser. ECOFORM pistons with pivoting side cores Weight optimized pistons for passenger car gasoline engines. The water pump and oil pump were integrated directly into the front of the block. Power levels were slightly boosted, giving the four-cylinder 10 more horsepower and five more pound-feet of torque. A single stainless steel fuel rail delivered fuel to the intake port-mounted injectors. Apr 10, 2023 Pistons. Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. All Molnar connecting rods are fitted with highly durable premium bronze bushings for use with floating wrist pin type pistons. During development, Tom Sutter reverted to his time developing the Oldsmobile Quad Four, GMs first four-valve per cylinder engine. Estimated International Ship Date: 3.780 bore, 1.326 C.H., 7cc dish, Std. Copyright 2023 by AUTOSALES, INCORPORATED GM says this helped eliminate play in the belt-drive system since each component was perfectly positioned in relation to the block. The length of the engine and its structure definitely played a part in that, Sutter said. Our Pursuit: Better Price, Better Quality, Better Service. Pro LS 2618 Forged Pistons. Our community has been around for many years and pride ourselves on offering unbiased, critical discussion among people of all different backgrounds. The Chevrolet small-block V-8, for example, began life in the 1950s and soon became the standard for high horsepower in a small package a legacy that continues into todays fifth-generation GM V-8s. Pistons have to put up with extreme pressures, as their working conditions have become significantly tougher in recent years. Re: TRW NOS forged pistons question. High ductility 2618 alloy. Be sure to ask for 7/16 rod bolts as the part number. In 2003, the Vortec 4200 was fitted with polymer-coated pistons that reduce engine noise and enhance durability. Because of the efficient cooling and the decreased risk of detonation, the Vortec 4200 was able to run its high compression ratio without the need for premium fuel. He also built a custom trans crossmember along with fabbed subframe connectors. Distance From Council Bluffs, Iowa Update. The guys on Hot Rod Garage are building a couple of 4.2l engines to compare with the Barra (an Aussie) engine. Formerly KB Forged Pistons. Mar 20, 2023 The Atlas high-tech features and innovative construction seem lost to most enthusiasts who arent normally interested in early- and mid-2000s GM SUVs and compact pickups. Talk to the experts. Extraordinary claims require extraordinary evidence.CarlSagan. Atlas is a name for a family of modern inline piston engines for trucks from General Motors, used in the GMT355 and GMT360 platforms. The oil pump was refined to limit noise; and the cam-chain tensioner was improved for quieter operation. Another I6-powered truck won the truck class at the Pikes Peak International Hillclimb. Ships Monday 3/6/2023. Large, 70 mm-diameter main bearings were also used to minimize crankshaft movements. It was built on a Trans Am chassis with a modified front subframe, this 4WD Envoy rode on cut-and-grooved tires powered by the same hand-built race version of the Vortec 4200. When introduced, this engine's power was 270 hp (201 kW) at 6,000 rpm and torque was 275 lbft (373 Nm . Racetec piston #1003628 is setup for stock bore with a 6 inch rod and a 0.927" pin. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Vehicle/Engine Search Make/Model Search Make/Engine Search Departments Brands Savings Central Contact Us Help Center Wish List Order Status & Returns My Account Welcome My Account Order Status Wish List Thread starter Drec; Start date May 2, 2020; Drec. Lifetime VIP Donor. Just as with the five-cylinder, the Vortec 2800 used many of the same parts and manufacturing procedures. Apr 24, 2023 of 129, Pro LS 2618 Forged Pistons. That represents a mere 50-horsepower and 50 pound-foot of torque decrease over the I-6. Trailblazers, Envoys, and other GMT360 vehicles also necessitated some innovative engineering to solve the issue of where to place the 4WD front differential and axles. In many instances, MAHLE is asked to supply the pistons for an OE manufacturer's high output, premium engines. The 1996 and later Vortec heads have the heart shaped combustion chambers. The skunkworks project kicked off shortly after the Trailblazers launch in 2002. Hinted by the name, the Vortec 3500 displaced 3.5 liters between five cylinders. Ring carrier pistons with cooling channel and crown reinforcement These pistons are used in diesel engines under heavy load conditions. The engine redline is 6,300 rpm. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8, Pro LS 2618 Forged Piston, 3.820 bore, 1.110 C.H., 5cc dish, 4.000in. A beefier transfer case borrowed from the Cadillac Escalades AWD system offered better on-road control than the Trailblazers stock two-speed transfer case. A. Wieser started with a Walbro GSS 340 in-tank fuel pump, stock 26-lb/hr injectors, and 5 psi of boost but quickly learned he needed bigger injectors and a larger pump. The most difficult part is keeping his foot out of the throttle because it's so much fun to drive. These parts may not be exchanged for others under any circumstances. GM used a premium aluminum called A356 as the primary material for casting. Or complete it online. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8, Estimated USA Ship Date: The inclusion of VVT on the exhaust camshaft side allows the Atlas series to meet emissions standards without the use of EGR, simplifying the engine design and increasing power for a broad power curve. If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. Apr 3, 2023 Tuesday 3/7/2023 Amazingly, the block, crank, head, head gasket, cams, and valve sizes all remained untouched. Each component besides the power steering pump was mounted directly to the block. MAHLE pistons are reliable. Piston Rings. A bearing beam, or "ladder," connected the seven main bearing caps longitudinally, further stiffening the. Please try again. Ring carrier pistons with cooling channel These pistons are used in conditions with particularly high operating temperatures.

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