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The 8.1L inherited a bore of 4.25 inches from the 7.4L motor but obtained a more significant stroke of 4.37 inches (in comparison with 4 inches in the 7.4L).
![2001 8.1 vortec mpg 2001 8.1 vortec mpg](https://i3.ytimg.com/vi/nRklF4Xh7Ew/hqdefault.jpg)
The precise displacement slightly differed because of some alterations in the cylinder head and was between 8.095 and 8.128 liters (approximately 494 cu in). However, the maximum power of 340 hp was achieved at 4200 rpm with a 455 lb/ft peak at 3200 rpm. The 8.1L’s output and torque could differ depending on its application, like in the case with all other motors built on various platforms. The Vortec 8.1L engine requires 6.5 US Quarts of new SAE 5W-30 engine oil for an oil change with a new oil filter. High Performance 8Pcs D585 UF262 Ignition Coils Pack Round Type + 8Pcs 8mm Spark Plug Wire Set Part.įuel Injector set of 8 17113698 17113553 Compatible with Chevrolet Silverado Suburban Taho Express.Ģ valves per cylinder, OHV, typical cam-in-block pushrod engineĥ,000 RPM (truck, van, SUV applications governed speed may vary in marine, motorhome, and medium-duty applications)ģ30 – 340 hp 4,200 rpm (truck, van, SUV applications)Ĥ40 – 455 lb-ft 3,200 rpm (truck, van, SUV applications)
2001 8.1 vortec mpg how to#
High-quality partsĬhevrolet 8.1L Vortec/496 Performance Manual: How to Modify 8100 Vortec Truck and 496 CID Marine.īLACKHORSE-RACING 4" Cold Air Intake System Kit with Heat Shield Filter Compatible with Chevy GMC.
![2001 8.1 vortec mpg 2001 8.1 vortec mpg](http://veh-markets.com/uploads/postfotos/2001-chevrolet-3500-dump-body-truck-81-liter-engine-hydraulic-dump-bed-plow-2.jpg)
Though its maximum output of 360 hp is lower and it keeps 380 lb/ft maximum torque, the company releases more productive 6.6L Duramax diesel for the cases when an enhanced towing ability is required.
2001 8.1 vortec mpg series#
And these are astonishing specifications for heavy truck motors.Īspiring to better fuel economy and lower emissions levels, GM ceased producing their 2500/3500HD series to give way to more compact 6.0L motor. Moreover, 8.1L’s undersquare styling enhances low-end torque and contributes to torque curve flattening. Both 7.4L and 8.1L motors feature a bore of 4.25 inches. When it breaks, GM’s 8.1L is a stroked-out variant (4 inches vs 4.37 inches) of the company’s 7.4L Vortec V8, which ceased for the sake of the 496 cu in version. The 8.1L features a large bore and stroke with an almost square bore-to-stroke proportion and a redline of approximately 5000 rpm. Actually, this motor was produced till 2009 for diverse motorhomes and ships. Finally, the power increases to 320-340 hp at 4200 rpm.Īlong with Chevrolet and GMC vehicles, this motor was also utilized for Kodiak, vessels and motorhomes. That’s a range of 2600 rpm of usable torque higher than 400 lb/ft, peaking at 440-455 lb/ft (depending on the year of production) at 3200 rpm. Advertisementīeing a gas motor, the 8.1L demonstrates an imposingly flat torque curve, being powerful at 1200-1400 rpm and finally coming to nought below 400 lb/ft after 4000 rpm. GM created these motors for pickups to work steadily for a long time. In 2007, a smaller but more high-performance 6.0L V8 substituted it.
2001 8.1 vortec mpg plus#
GM’s 8.1L motor, referred to as 8100 Vortec and first produced in 2001, was employed for Chevy Avalanche 2500, Silverado 2500HD and 3500HD plus their GMC Sierra doubles in 2001-2006.