vortec 4200 forged pistons vortec 4200 forged pistons

It displaces 3.5L; 211.1cuin (3,460cc), with a 93mm 102mm (3.66in 4.02in) bore and stroke. Dual forced pin oiling on most applications, Lateral gas porting on higher compression ratios. | MotorTrend. 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. Estimated International Ship Date: Its displacement jumped to 3.7 liters thanks to a larger 3.76-inch bore. When introduced, this engine's power was 270 hp (201 kW) at 6,000 rpm and torque was 275 lbft (373 Nm . Dynoed at the flywheel it produces 220hp (164kW) at 5,600 rpm and 225lbft (305Nm) at 2,800 rpm. I don't have access to check but will L31 Vortecs heads have a clearance problem with these pistons. On assembly it must be ensured that the components are lubricated sufficiently. Controlling the power was GMs Hydra-Matic 4L60-E four-speed automatic transmission with slight modifications to handle the extra power. The engine was also used in the Buick Rainier, Saab 9-7X, and Isuzu Ascender. Valve recess depth. CHEVROLET 5.7L/350 Chevy small block Gen I Pistons - Free Shipping on Orders Over $99 at Summit Racing Bore (in.) It displaces 4.2L; 253.9cuin (4,160cc), with a 93mm 102mm (3.66in 4.02in) bore and stroke. Apr 3, 2023, Pro LS 2618 Forged Pistons. 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. This allowed the engine to breath deeper during high-throttle situations, resulting in higher power without the fuel consumption penalty being present throughout the rev range. This included the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Oldsmobile Bravada, Isuzu Ascender, and Saab 9-7X. Estimated International Ship Date: The long crankshaft presented its own set of inherent challenges. You must log in or register to reply here. The 5.0-liter inline-six pushed the race truck to win the Trick Truck class, beating the next race team by more than 30 minutes and coming in second in the overall completion. Testing: Magnafluexed, X-Rayed / Sonic Testing for higher Quality. Because of the high temperatures at the piston top and the ring belt, intensive cooling is provided with oil circulating through the cooling channel. Piston diameter, installation clearance, and if applicable direction of installation are marked on the piston crown. KingTec Racing (Wuxi) Co., Ltd. is focus on R&D high performance racing cars spare parts for more than 17 years. Herzog Motorsports also ran another Vortec Trailblazer in the Best In The Desert Nevada 2000. We decided to take a closer look at the Vortec 4200 and its forward-thinking design. The hue and cry continue over the preponderance of LS engines in this magazine, and it has not gone unnoticed. Plus the vortecs are small cc (I think 64) and that small of a camber with domed pistons will give a high compression ratio (which does not work well with todays gas). Introduced two years after the Vortec 4200, the Vortec 3500 used nearly all the same parts and construction practices as its six-cylinder brother. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck, 4.33 out of 5 stars 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. That meant it could use the same engine mounts and accessories as the V-8, saving parts costs and engineering expenses. The Atlas program began in 1995 along with the planning for GM's next-generation mid-size SUVs and pickup trucks. The engine redline is 6,300 rpm. The first race truck was the Vortec Trailblazer that ran in the Baja 500 and Baja 1000 off-road races in 2000. TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada. Estimated International Ship Date: A local guy has a SBC for sale, It has Speed Pro HYPER--- .125 dome pistons ( H618P). The piston pins are selected for the appropriate fit and they can be exchanged within the same piston type. The story of GMs high-tech straight-six and why it died. A similar design was sketched for the Atlas and eventually became an integral part of the project. Pistons, Pro Tru Street Pistons, 4.030 in. However, some of the pistons and pins are color coded. 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. MAHLE pistons are reliable. The most difficult part is keeping his foot out of the throttle because it's so much fun to drive. Saturday 3/4/2023, Pistons, Dish, 12 Degree LS2K Series, Forged Aluminum, 4.125 in. Called the Lost Foam Casting technique, it basically uses a pre-shaped block of Styrofoam buried in sand. Who says you need eight cylinders to have a party? 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. 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 Vortec 4200 featured a deep-skirted block that added strength to the crank area. Piston Rings. They feature coil-on-plug ignition systems,[1] variable valve timing on the exhaust side, electronic throttle control, and a special oil pan with a pass-through for the half shafts in four-wheel drive vehicles. This necessitated a highly strengthened oil pan and a cylindrical pass-through for the axle shaft. Wieser attributes much of the reliable power results to tuning by Mark Romans, who used his HPTuners software to dial in the spark and fuel. 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. JavaScript is disabled. The V-6 was essentially a V-8 with two cylinders removed, much like the relationship among the Atlas engine family. Wieser says the A/C conversion blows plenty cold even after 5,000 miles of street driving. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. The intake manifold was kept short in order to accommodate easy access to the spark plugs. Stroke, .Gen.4 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8, 5.0 out of 5 stars Apr 24, 2023, Pro LS 2618 Forged Pistons. He could even be found working on tractors or hay bailers while on vacation at his uncles farm. As mentioned before, the Vortec 4200 was the first GM truck engine to feature variable valve timing. 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. The 4200 also relies on an electronic throttle that Wieser has retained on his turbo version. 3.810 bore, 1.326 C.H., 7cc dish, Std. The Chrysler 2.5L Turbo, Chevrolet 5.7L LT5 (ZRI Corvette), Chevrolet 5.7L LT1 and Chevrolet 4.3L 200HP truck engines all have our pistons. The stated piston diameter added to the corresponding clearance gives the cylinder diameter. The 4.2-liter called the GMT360 platform home. The throttle was controlled through the PCM and was opened via an electric motor mounted inside the 77-mm diameter throttle body. 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. Vortec 4200 Turbo Engine Builds! Privacy Policy Copyright 2023 MolnarRods.com All Rights Reserved. Apr 10, 2023 Growing up, Mark always had a mind for tinkering on random items throughout his home and dads garage, including a 1953 Ford Mainline and 1971 Corvette Stingray. A high-flow oil pump, fuel injectors, and exhaust system rounded out the updates. E. The front accessory drive is all stock, including the water and A/C pumps. Mar 13, 2023 $559.00 $509.00 Quantity - + Add to Cart Description GM Chevy Vortec 4200 DOHC Inline 6 cylinder Atlas 4.2 engine rods 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. Copyright 2005-2022 KingTec Racing Co., Ltd. All Rights Reserved. Their range of applications extends from model engines to large power units. (43), In Stock, Including at a Supplier. Summit Racing will BEAT any competitor's advertised price! He eventually figured it out. Calvin Nelson has swapped a Vortec 4200 inline-six into a Studebaker Lark and Fairmont Futura. Large, 70 mm-diameter main bearings were also used to minimize crankshaft movements. Bore, -11.00cc Head Volume, Chevy, LS, Set of 8, Estimated USA Ship Date: MAHLE pistons are reliable. 360 Forged Pistons; Buick. This would mean the entire front clip would need to be redesigned. Those pistons can be paired with Crower B93913B rods. In many instances, MAHLE is asked to supply the pistons for an OE manufacturer's high output, premium engines. vortec 4200 forged pistons. Lifetime VIP Donor. 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. GMTNation.com uses SSL to secure all traffic between our server and your browsing device. Bore, Chevy, 4.8L, 5.3L, Set of 8, Estimated USA Ship Date: 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 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. Read More. The oil pump was refined to limit noise; and the cam-chain tensioner was improved for quieter operation. 3.810 bore, 1.326 C.H., 2cc dome, Std. They have cast-in steel strips but are not slotted. The Chrysler 2.5L Turbo, Chevrolet 5.7L LT5 (ZRI Corvette), Chevrolet 5.7L LT1 and Chevrolet 4.3L 200HP truck engines all have our pistons. 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! With pin boss bushes made from a special material, the load-bearing capacity of the pin boss is increased. This combination allowed for the production of 1.06 horsepower per cubic inch a total of 270 horsepower at 6,000 rpm. Please note that Checkout Prices will be in US Dollars. ), production of the LL8 also ended. 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 engine redline is 6,300 rpm. Wieser says he did all the work in his two-car garage, with the exception of the fabbed Hogan sheetmetal intake and the upholstery. Each time they are removed unnecessarily and refitted with excessive stretching, permanent deformation is caused and the operating performance is impaired. From the FHR series to the LCAT, ICON offers the most diverse and fully-featured "Off the Shelf" forged piston on the market today. Chrysler Dodge Mopar Vortec 4200 Rods . Engineers added twin Aerodyne turbos tuned to generate 8.5 pounds of boost. Copyright 2023 by AUTOSALES, INCORPORATED Estimated International Ship Date: [1], The LK5 (also called the Vortec 2800) is a 2.8L; 169.0cuin (2,770cc) straight-4 DOHC engine produced between 2004 and 2006, with a 93mm 102mm (3.66in 4.02in) bore and stroke. Estimated International Ship Date: Piston Rings. The episode is #40, with an air date of 5/1/2020. Due to their high strength and lower wear values, these pistons make it possible to comply with low exhaust and emission standards, especially for diesel engines under heavy loads. The latest version is a set of 60-lb/hr injectors (at least he only needs six) that will be enough to keep the air/fuel ratio safe at 12.0:1 air/fuel with 10 psi of boost. Apr 25, 2023, Pro LS 2618 Forged Pistons. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck, 2.0 out of 5 stars California Rewire constructed the custom wiring harness that integrates the GM powertrain computer with the vehicle. The I-6 was built at GMs Flint Engine South plant in Flint, Michigan. (4.000" bore x 3.48" stroke). Formerly KB Forged Pistons. On this Wikipedia the language links are at the top of the page across from the article title. Dual forced pin oiling on most applications. A beefier transfer case borrowed from the Cadillac Escalades AWD system offered better on-road control than the Trailblazers stock two-speed transfer case. The 1996 and later Vortec heads have the heart shaped combustion chambers. ( 7 ), Estimated USA Ship Date: Apr 10, 2023, Pro LS 2618 Forged Pistons. It generated 175 horsepower at 5,600 rpm and 185 pound-feet of torque at 2,800 rpm. Each component besides the power steering pump was mounted directly to the block. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8, Estimated USA Ship Date: Monday 3/6/2023 B18C5 Forged Pistons; C30A NSX Pistons; C32B NSX Pistons; Acura Honda. High ductility 2618 alloy. This was designed to quell vibrations to the components mounted above, including the individual ignition coils. 2003 saw a slight bump in power to 275hp (205kW), while torque was unchanged. 350, Dome Piston Style, Forged Aluminum Piston Material. The base engine is an '05 Vortec 4200, but Wieser says '06 to '07 engines offer a better-flowing cylinder head with more cam timing. Those are the "Vortec" heads, regardless what the engine cover says. Bore, -15.00cc Head Volume, Chevy, LS, Set of 8, Piston, Hypereutectic, Flat, 3.809 in. Dish Pistons with 4 valve relief. Our Pursuit: Better Price, Better Quality, Better Service. B16A Forged Pistons; B20 Forged Pistons; AMC. Bore, Chevy, 4.8L, 5.3L, Set of 8, 4.71 out of 5 stars 3.780 bore, 1.326 C.H., 7cc dish, Std. The skunkworks project kicked off shortly after the Trailblazers launch in 2002. Estimated International Ship Date: If you are located in the United States select "Apply" to have access to US delivery options and In-Store Pickup. More compression is good. Some shows do that, continuing off-air. In '05 its The Atlas program got its start around the same time, with GM sold on the benefits of an inline engine. Machined from high-strength 2618 alloy, these 18cc spherical-dome pistons are offered for both single and dual overhead cam applications. Apr 25, 2023, Pro LS 2618 Forged Pistons. 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. Exclusive V-rib adds strength without adding weight but allows maximum cooling. Piston Rings. Vortec 4200 build on Hot Rod Garage. The factory plugs were rated to last 100,000 miles before replacement. The pistons and con rods must always be assembled in the prescribed installation direction. PIPER KING AIR 200 Piston Twin Aircraft For Sale in COUNCIL BLUFFS, IOWA 1 - 1 of 1 Listings. Price Range Filter Options Savings Central Selected Filters Part Type: Pistons Make: CHEVROLET Engine Size: 5.7L/350 Mar 20, 2023 Pro LS 2618 Forged Pistons. Apr 24, 2023 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. At around $38.00 with Free S&H one might think that its TOO . AUTOTHERMATIK- / HYDROTHERMATIK These pistons are used mainly in gasoline and diesel engines for passenger cars under heavy load conditions. Introduced for the 2002 model year, the GMT360 platform sold a couple million examples worldwide before ending production after 2009. 3.810 bore, 1.326 C.H., 7cc dish, Std. The high silicon VMS-75 alloy is found exclusively in pistons powerforged by Speed-Pro. 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. 3.780 bore, 1.326 C.H., 7cc dish, Std. MAHLE Aftermarket Inc.23030 MAHLE DriveFarmington Hills, MI 48335, by MAHLE Aftermarket GmbH, Stuttgart 2001 - 2023. Still, that doesnt negate the unique nature of GMs forgotten inline engine family. International Customer Options|In the United States? Print Share. The length of the engine and its structure definitely played a part in that, Sutter said. Posts: 24 . All Molnar rods are finished in the United States at the Molnar Technologies shop in Michigan. Sutter and his team devised a dual-frequency harmonic damper that attached directly to the front of the crank to counteract the effect. Terms of Use | Privacy and Security | Site Accessibility A third-party browser plugin, such as Ghostery or NoScript, is preventing JavaScript from running. It produces 242hp (180kW) at 5,600 rpm and 242lbft (328Nm) at 4,600 rpm. A bearing beam, or ladder, connected the seven main bearing caps longitudinally, further stiffening the block. The design was chosen thanks to the large volume of air four valves can move, while the roller-followers provided a smoother operation with less friction than conventional lifters, adding to the engines efficiency. There are a few reasons this might happen: To regain access, please make sure that cookies and JavaScript are enabled before reloading the page. It produces 175hp (130kW) at 5,600 rpm and 185lbft (251Nm) of torque at 2,800 rpm. Estimated International Ship Date: dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, In Stock at a Summit Racing Location. Bore (mm) Stroke Actual Engine Displacement Rod Length Piston Style Piston Material Compression Height (in.) These parts may not be exchanged for others under any circumstances. GM even used its relatively new manufacturing method for the Atlas engine block and cylinder head. Apr 4, 2023 Additional information is available in this. The beam also helped reduce vibration and noise, while reducing the chances for an oil leak. Pistons. Apr 24, 2023 Apr 17, 2023 In 2003, the Vortec 4200 was fitted with polymer-coated pistons that reduce engine noise and enhance durability. Another I6-powered truck won the truck class at the Pikes Peak International Hillclimb. 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. You can order this part by Contacting Us. Ring carrier pistons with cooling channel and crown reinforcement These pistons are used in diesel engines under heavy load conditions. Herzog Motorsports ran the trucks and supplied the drivers. Prior to assembly, the con rods have been checked to see that their bores are on parallel axes (to ensure that there has been no bending or twisting), and if necessary, they have been replaced. [4], The LLR (also called Vortec 3700), is a straight-5 DOHC engine with dual balance shafts produced from 2007 through 2012. Estimated International Ship Date: Testing revealed the twin-turbo Trailblazer could hit 60 mph in 5.35 seconds before running the quarter-mile in 13.91 seconds at 97.4 mph. Sutter has been involved with engine programs for the last 30 years, ranging from Oldsmobiles Quad Four to Cadillacs current V-Series mills. Bore, -20.00cc Head Volume, Chevy, LSX, Set of 8, Pro LS 2618 Forged Piston, 3.810 bore, 1.110 C.H., 5cc dish, 4.000in. The pistons have cast-in steel strips and are slotted at the transition from ring belt to skirt section. The cam is a XE 284H .507/0510 lift Apr 6, 2023 Pistons. Need some help from one of you engine guys. D. That's a Hogan sheetmetal- fabricated intake manifold that Wieser felt was necessary for better performance. The Vortec 2800 was the standard engine for the Colorado, Canyon, and Isuzu i-280. This commonality throughout the Atlas family was certainly a big attraction, both for ease of manufacturing and keeping costs in check. These stats far exceeded every comparable V-6 on the market at the time, including GMs own 4.3-liter Vortec V-6. This provides the pistons with significantly improved heat removal properties, especially in the first ring groove. The system used an electronic throttle with no mechanical linkage between the gas pedal and the throttle body. Chrysler Dodge Mopar Vortec 4200 Rods . Pistons have to put up with extreme pressures, as their working conditions have become significantly tougher in recent years. ( 1 ), Estimated USA Ship Date: The MAHLE repair pistons are ready for installation with mounted piston rings. Apr 25, 2023, Pistons, Dish, Competition Series, Forged Aluminum, 4.070 in. The 2007 model year saw significant changes to the Vortec five-cylinder. Source: Vortec 4200 Wiki via Grassroots Motorsports. The episode is #40, with an air date of 5/1/2020. Apr 24, 2023 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. Bore, -2.00cc Head Volume, Chevy, LS, Set of 8, 5.0 out of 5 stars Power levels were slightly boosted, giving the four-cylinder 10 more horsepower and five more pound-feet of torque. [3] This five-cylinder engine achieves better fuel economy and performance than the six-cylinder, but with more power and torque than the four-cylinder. Cast solid skirt Piston top, ring belt and skirt form a robust unit. Driven by Larry Ragland, the 81 Vortec Trailblazer only competed in those two Baja races before retiring to Raglands garage. No matter what your high-performance application calls for, there is an ICON piston for you. For additional protection and to avoid cavity edge or crown fissures, these pistons have a special hard anodized layer (HA layer) on the crown. [3], The L52 (also called Vortec 3500), is a straight-5 DOHC engine produced from 2004 through 2006. Its a beastly 4.0L six-cylinder turbocharged unit that churns out enough combined tire smoke yearly to blot out the sun! Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck, Estimated USA Ship Date: He also runs Mobil 1 synthetic, taking advantage of its superior thermal stability. novadude said: In my case, 4.030 bore, 0.017" piston-to-deck, 0.028" GM composition gasket, measured 63cc Vortec heads, 12 cc piston dish (checked with plate and syringe) = 9.6:1. Monday 3/6/2023 Apr 3, 2023 [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. Thank you! The aluminum is very similar to the aluminum used in wheels, but is heat-treated to increase strength. Estimated International Ship Date: 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. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8, 4.0 out of 5 stars However, it was logistics that squashed that from happening. 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. 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. GM canned the project, however, electing to use the 6.0-liter LS2 V-8 instead. The LLR also corrected the head issue found in the L52. You've disabled JavaScript in your web browser. 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. [2], The Atlas engines feature aluminum cylinder blocks and heads, with the cylinder bores featuring replaceable steel cylinder liners.[1]. Two-stroke These pistons are mainly used in gasoline and diesel engines for passenger cars under heavy load conditions. Saturday 3/4/2023, Piston, Hypereutectic, Flat, 3.799 in. Estimated International Ship Date: The package generated an impressive 400 horsepower at 5,200 rpm and 400 pound-feet of torque at 2,500 rpm. The straight-five produced 220 horsepower at 5,600 rpm and 225 pound-feet of torque at only 2,800 rpm. Mar 29, 2023 You are using an out of date browser. You've disabled cookies in your web browser. It featured an all-aluminum construction, dual overhead cams with variable valve timing on the exhaust side, four valves per cylinder, a coil-on-plug ignition system, a high compression ratio of 10:1, and its cylinder heads featured GMs then-prevalent Vortec engineering designed to maximize airflow. Re: TRW NOS forged pistons question. As a result, they form a uniform body with extreme strength. It used the same 3.7-inch cylinder bore and 4.0-inch piston stroke as the Vortec 4200, along with the same rods, pistons, and valves. Despite this, the oil pan still held seven quarts. When introduced, this engine's power was 270hp (201kW) at 6,000 rpm and torque was 275lbft (373Nm) at 3,600 rpm. As a result of a special casting technology these pistons offer low weight and high structural rigidity. This listing is for (8) Standard bore 4.00" hyper Pistons and matching Moly Ring Set compatible replacements for Chevrolet 350 Vortec 5.7 1996-2002. We had to find a way to run the 4WD system, yet still meet the engines oiling needs. Impressively, the oil pump moved 11 gallons a minute at 2,500 rpm while maintaining a maximum pressure of 65 psi. Please try again. Estimated International Ship Date: Regular grade gasoline was recommended. Each of these mid-sized SUVs shared the same architecture, including the industrys first fully hydroformed frame in a mid-size SUV.