What is an 8.1 Chevy motor?

Building on the same basic architecture as the 454 cubic inch motor it would eventually out-live, the Vortec 8.1 (also known as the 8100) represented the final link to Chevrolet's roaring '60s muscle car motors, and claimed the title of the largest passenger vehicle engine to ever wear the Bowtie badge.

Is the Chevy 8.1 a good engine?

Is the 8.1 Vortec a good engine? Chevrolet's 8.1L Vortec is considered to be a very good engine to go with. This was a sibling to Chevy's famous 454 engine, and it was first used in trucks in 2001. This engine was used exclusively in the HD versions of the trucks and SUVs from Chevrolet and GMC.

What is an 8.1 liter V8?

The GM 8.1L Vortec engine was the last of the GM series of big block engines. This V8 engine replaced the 7.4L Vortec as the high power option for the vehicles in which it was offered. The bore was kept the same for the 8.1L engine, but the stroke was lengthened which provided the extra displacement.

What's the biggest gas motor Chevy makes?

The ZZ632/1000 is a 632-cubic-inch V-8 delivering 1,004 horsepower. DETROIT – Chevrolet Performance today introduced the ZZ632/1000* crate engine — the largest and most powerful crate engine in the brand's history. The naturally aspirated 632-cubic-inch V-8 produces 1,004 horsepower and 876 lb-ft of torque.

Do all Chevy 8.1 have Allison Transmission?

In the LT trim trucks the Allison was standard equipment behind the 8.1L engine. NO Chevrolet or GMC pick-up truck was ever built with an 8.1L engine, and the 4L80/4L85E transmission. If you chose a pick-up truck with the standard 6.0L gas engine it would come with a 5-speed manual as standard equipment.

Vortec 8100: Everything You Want to Know | Specs and More

How much HP can you get out of a 8.1 Vortec?

For maximum power, our stage 3 truck performance package bumps the Vortec 8.1L to 610 horsepower & 640 ft-lbs of torque.

What vehicles had the 8.1 Vortec?

The General Motors Vortec 8100 V8 was introduced in 2001 fullsize Chevy and GMC pickup trucks, RVs, vans, and SUVs as an alternative to the then-new Duramax diesel for customers seeking maximum hauling capability without the sourcing hassles and cost of diesel fuel.

Is the 8.1 Vortec a big block?

The 8.1-liter V8 was the very last big block to be produced by General Motors.

What does a Chevy 8.1 weigh?

8.1's weight in at around 700lbs and the Ally is 300lbs.

What type of oil does a 8.1 Vortec take?

The Workhorse manual says 5W-30 is the preferred oil for the 8.1 L Chevy engine.

Is a 454 a good motor?

The 454 big block is a very good engine to go with if you are looking for something that can output a lot of power, and fit in a lot of classic cars and trucks. This is a classic engine from Chevrolet and stock it makes great power from the factory, if you upgrade it you can get even more out of it.

How much oil does a 8.1 Chevy take?

With filter 6.4 quartsAfter refill check oil level.

What year did the 8.1 Vortec come out?

The Vortec 8.1L was introduced in 2001 as a replacement to the 7.4L Vortec which was in production from 1996-2001. The Vortec 8.1 and 7.4 were both only featured in the HD 2500/3500 series trucks and suburbans and other commercial class vehicles and vans.

How strong is the Allison 1000?

Initially the Allison 1000 was a 5 speed transmission, rated to handle up to 620 lb⋅ft (840 N⋅m) of torque. This rating has increased as the transmission was updated several times, to stand at 765 lb⋅ft (1,037 N⋅m) by 2011 in GM truck applications.

How do you tell if a Duramax has a Allison?

every duramax in a GM truck has an allison. look under the truck at the tranny, it should have a red spin on filter on it.

Does GM still make big block engines?

Last week marked the end of production of GM's big block engine. The last of the legendary powerplants – the L18 – rolled off the line at GM's Tonawanda plant in New York amid whistles and applause from onlookers.

How many liters is a 572 Chevy big block?

A 572-cubic-inch (9.4-liter) big block V-8 is available, along with two small block V-8s, a 580-hp 350-cubic-inch (5.7-liter) unit and a 470-hp 427-cubic-inch (7.0-liter) motor.

What year did Chevy stop making the 454?

The Chevrolet 454 was eliminated from most passenger cars by 1975 but remained a viable powerplant in heavy-duty Chevrolet trucks through 1996.

What is the best big block?

Does Chevy still make a 5.7 engine?

Though it was discontinued in GM vehicles in 2003, GM still produces the 5.7 Chevy engine today. GM used this wildly popular small-block engine in everything from family station wagons to muscle cars and boats over the years.

How much oil does a GMC c7500 take?

Valvoline SynPower Synthetic Motor Oil 5W-30 5 Quart.

What kind of oil does GMC c7500 take?

Valvoline - Daily Protection 5W-30 Synthetic Blend Motor Oil, 1 Quart (Part No. 797975/VV177)

Why did Chevy stop putting 5.7 in trucks?

It's no cheaper to manufacture the 4.8 cranshaft and pistons than the 5.3 versions. In fact, it would have cost less to cast only one size of piston and one crankshaft. That's also the same reason why there's no 5.7, they guzzle more fuel.