GM Atlas 4 vs 5 vs 6 Cylinder Engine Comparison

Today we do a comparison between the Vortec 2800/Vortec 2900 4 cylinder vs the Vortec 3500/Vortec 3700 5 cylinder vs the Vortec 4200 6 cylinder engine.

[narnarnarnarnarn]

I hope that really was a hint at a 5cyl project - I'd LOVE to hear one of those at 8000+!

[ColbyJohnson]

Would love to see some content on the 4/5 cylinder atlas engines! 🤓

[TheAfterPein]

A turbo 5 cylinder would be awesome to see content on. Like an older, domestic Audi RS3 engine, but with another 1.2 liters of displacement!

Knowing who makes which aftermarket parts for each platform could be another informative comparison video, too.

[blanchae]

I've really liked the Atlas engines since they first came out. I was baffled why no-one was picking up on the performance aspect. Very glad that you are pioneering the virtues of the engine. Kudos!

[shadymaint]

I have had to change several 4.2 motors for having extra inspection holes in the block. Was usually due to lack of lubrication. One lady went about 17k miles without an oil change.

[Dr_Xyzt]

The 5-cylinder is super underrated. It gives you a very Viper experience, without the cost/packaging issues. All it really needs is a good cam/header setup, a lightweight flywheel, and a TKX dogbox.

[wymple]

I have the 4.2 and consider it one of the finest engines I've ever owned.

[knowbullhit]

Are we getting American 5 cylinder turbo stuff on youtube finally??? You’re my hero 😂

[snappyaj]

Can’t help but admire your willingness to pioneer building these engines for performance. It takes real guts to say “this is a great engine, let’s show the world what it can do!”

[deegan]

I’d like to see you do a build with the 4cyl. I have a Colorado with the 2.9 and plan on eventually turbocharging it. It would be nice to follow a proven recipe instead of trial and error on my part😂.

[bvward]

Calvin, nice comparison video. I have a 5 cyl. VW, and always loved the sound of the 5 cyl. Audi rally cars on boost. Gets me thinking...+

[msigurko]

That'd make for a real nice 4 banger swap. A gen2 4cyl Looks like a very capable package in the stock form to go into something like a Miata or a BRZ

[BigFunLife]

Great comparison video, thanks for making this video and sharing your knowledge…

[ogreCyques]

Someday I want to build a Colorado/Solstice sourced open cockpit roadster using the Atlas 5. Its awesome to see somebody else exploring their potential!

[jimmy]

I worked with one of the development engineers who was on the 6 cylinder. The main goal was more power & better fuel economy than the 4.3. The prototypes showed significantly improved fuel economy. The first production engines did not show this. Lots of research never located what changed. Mike said they were left scratching their heads. Puzzling.

[drver]

Looking forward to seeing what you do with that 3700!

[jeff]

i realise you build for high performance but i would love to see you put together the 5 cylinder with individual throttle bodies and velocity stacks to hear it purr👍

[highpointsights]

I met a guy a few years back who was already in the 300 mph club in SCCA events. He was upgrading and was considering the 5 cylinder GM motor because it really moved a lot of cfm!!

[TheNanGod]

I Would love to see some breakdowns of the four and five cylinder engines performance with and without balancing shafts

[pisstoffcat]

Would love to see you do a jeep swap with a 2.9 atlas . Jeeps are just begging to get atlas swaps, it only makes sense a lighter more powerful engine with better mpg that fits . You could even run the gm transmission and transfer case on a Cherokee, would be great content and bring the jeep crowd over to your channel.