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What is a 6.1 Hemi?

Author

Emma Payne

Published Jan 20, 2026

The 6.1 HEMI is a 6.1-liter V8 naturally-aspirated gasoline engine debuted in the 2005 Chrysler 300C SRT-8. It's based on Chrysler's 5.7 HEMI V-8 engine. A lot of race-proven engine technologies were integrated to create the new SRT 6.1 HEMI with 425 horsepower and 420 ft-lb of torque.The 6.1 HEMI is a 6.1-liter V8 naturally-aspirated gasoline engine debuted in the 2005 Chrysler 300C SRT-8. It's based on Chrysler's 5.7 HEMI V-8

V-8

The S-V8 is powered by a Ford Mustang sourced 4·6-litre (4601 cc), 32-valve, four-cam, V8 engine producing 325 bhp (242 kW; 330 PS), with a top speed of 160 mph (260 km/h) and 0-60 mph in less than five seconds.

https://en.wikipedia.orgwiki › Jensen_S-V8

engine. A lot of race-proven engine technologies were integrated to create the new SRT 6.1 HEMI with 425 horsepower and 420 ft-lb of torque.

Is the 6.1 HEMI a good engine?

The Hemi 6.1 Engine is a reliable, well-built engine that can deliver high mileage in excess of 250 000 miles, with regular services and maintenance. The Hemi 6.1 engine was based on the 5.7-liter engine but after being put on a strict diet.

What size is a 6.1 HEMI?

The 6.1L HEMI pistons are 4.055 inches in diameter and weight 435 grams, and the connecting rods measure 6.242 inches centerline to centerline in length (same as the 5.7L).

What cubic inch is a 6.1 HEMI?

The SRT 6.1 engine is 370 cubic inches.

What is the difference between 6.1 HEMI and 6.4 HEMI?

The 6.4 Hemi has more HP than the 6.1, in the region of about 50hp extra. It also has a better cylinder head flow and larger displacement when you compare the two. The 6.4 has a variable cam and variable intake manifold, making it a more sophisticated engine than the 6.1.

26 related questions found

How much horsepower does a 6.1 Hemi have?

Dodge 6.1 HEMI Problems

It offers 425 horsepower and 420 lb-ft of torque. 6.1L HEMI engines come without MDS, but use a stronger block and internals than the 5.7 engine. Overall, the 6.1 V8 is a great engine that offers a good balance of performance and reliability.

Is the srt8 faster than the 392?

The 6.4 will be classified in a faster class than the 6.1. The 392 should be the faster car and it is.

Is the 6.1 HEMI a big block?

All the 5.7/6.1/392, etc Hemis are small blocks.

What is a 6.4 HEMI in cubic inches?

A 6.4-liter engine is equivalent to 392 cubic inches because both measurements are different units of expressing engine displacement.

Are 6.1 HEMI rods forged?

So yes the rods are "Forged". The pistons are Cast Hyperutectic (High Silicon Content Alloy).

How much horsepower does a supercharger add to a 6.1 HEMI?

Experience shows HEMI supercharger kits are the best power-per-dollar option for the HEMI engine. Stock 5.7 HEMIs see horsepower increases of 120 to 145 HP, 6.1 and 6.4 HEMIs can expect 160 + HP gains. Prices range from $5,500 to $7,900 for the supercharger kit, installation and tuning services are extra.

What engine is SRT8?

It contains a powerful 392 Hemi V8. There are 475 lbs. of torque and 485 horsepower available under a 4.5L engine. In just over four seconds it will achieve a top speed of 60 mph.

How much horsepower does a 2008 6.1 HEMI have?

Given that kind of mass, and the same powertrain used in the sedans—Chrysler's 6.1-liter Hemi V-8 (425 horsepower, 420 pound-feet of torque) and five-speed AutoStick manumatic—we predict the Challenger will hit 60 mph from rest in 4.7 seconds and clear the quarter in 13.1.

Does 6.1 HEMI have lifter problems?

However, the 6.1 HEMI and other HEMI engines have a history of having seized lifter rollers. Poor design and/or lack of lubrication appear to be the root causes of lifter roller problems. At some point, the lifter rollers will seize, causing the lifter to come into contact with the cam lobes.

Will a Hellcat supercharger fit a 6.1 HEMI?

Hellcat supercharger adapter kit is now available for the 5.7 NON VVT and 6.1 Based engines!

How many miles will a srt8 last?

I recall that 150,000 miles is the standard.

What is a 6.2 HEMI?

Helping to deliver the performance you want on the road in your new SUV is a 6.2-liter HEMI® V8 engine that pushes out 710 horsepower and 645 lb-ft of torque. With horsepower and torque ratings like these, you'll have fun on the road every time you sit behind the wheel of your new 2021 Dodge Durango SRT Hellcat.

What cubic inch is a 6.2 HEMI?

6.2 Hellcat

It features the same 4.09 in (103.9 mm) bore as the 6.4 L Hemi and the same 3.578 in (90.9 mm) stroke as the 5.7 L, giving it a total displacement of 6,166 cc (6.2 L; 376.3 cu in).

Is 6.1 HEMI small block?

There are 454 small blocks (and bigger) and there are 454 big blocks... the 5.7 and 6.1 are small blocks.

What's the difference between SRT8 and Hellcat?

SRT®? The main difference comes down to performance. The R/T is equipped with a 375-HP 5.7L HEMI® V8 engine while the SRT® Hellcat comes with the supercharged 6.2L HEMI® SRT® V8 engine.

How many spark plugs does a 6.1 HEMI have?

In this video, SRTaddicts will show you how to replace all 16 spark plugs and 8 ignition coils.

What year did the 6.1 Hemi come out?

The 6.1 liter HEMI is not shy when it comes to overall horsepower. When it was first developed and released in 2006, it was by far the most powerful engine placed in modern muscle cars.