What is the most common problem with the 5.7 Hemi?

What is the most common problem with the 5.7 Hemi?

Is a 5.7 Hemi a V8 a good engine?

Hey, I'm not sure where to put this but I need a little help. Just bought my car last week and was wondering what type of V8 is used in these cars. For example, the Hemi from the SS has one of these. Can I go ahead and buy a 5.7 V8 just for the heck of it? The car was originally a convertible but I have it open now. I know you guys on here will be able to help me out!

Sorry if this is a bit offtopic but I don't really have anyone I can ask about this. A great V8 engine is the best engine a good person ever owned. It is a very good engine that is a pleasure to use in a car. You can make it go from zero to 100 mph in the time it takes to light a cigar.

The only problem with the Hemi engine is that it makes a lot of exhaust backpressure which means a weak muffler. (If you want better sound, get a supercharged version.)
The only other problem is.you'll never make them any more.

I own a '68 Camaro that I have had forever. Last year I got a Hemi, and now I wish I had the 426. (If you want better sound, get a supercharged version.

A 5.7 in a 68-69 Camaro? That's an interesting project.

Why would you do that? The engine is in an entirely different class than a 426 (or 427 or 426ci V8s, 454, etc.) I agree with this post.

What is the most common problem with the 5.7 Hemi?

So the problem with our 5.7 and our new "proper" head to head. Is that in every other aspect of this truck a great engine, there are many parts that suck the most. The Hemi just needs a more efficient cam to help it along. If only Toyota could find a way to get that cam out of the ZF6's they would have us laughing at all the money they threw away on the thing. I just wish I could say how much better this engine was than my old 2.2 or the 6V71 before it as far as the torque curve. I think if Toyota built a 2.7 like the 2.2 before it or even the new 1.8 and did a little bit of money spent on the motor, this thing would be a powerhouse.

What years to avoid for the 5.7 Hemi?

5.7 hemi engine for sale

I know there is a huge demand for a new/better Hemi motor in the 5.7L and I really want to get one, but I want to make sure that it will be worth the money before I buy it. Any one with any experience with this motor have any thoughts on which year to go with? I would like a full build without having to pay for all of the parts, so looking for some help with this. Any years that I should not bother? Thanks.

Re: Which years to avoid for the 5.7 Hemi? There is no reason to go past 2025, but if you are looking at the high dollar stuff there are plenty of better motors out there for less money. The newer motors tend to have better cooling and better compression ratios than the older engines. If you are just looking for parts you can save a lot of money by going aftermarket. In the performance department the GM 5.7L Hemi has had more performance updates than any other Chevy engine, but there is no reason to ever go into GM's motors without knowing what they have planned for the future. If you are planning on going off the beaten path with your engine, it might best to wait until they stop making those new parts you want and then you won't have to worry about waiting to get them aftermarket.

Originally Posted by c4lover. Thanks for the help. I have been looking at the current gen of motors (2003 and up) and I like what I see.

How much HP can a 5.7 L Hemi make?

I can't find a thread that addresses this question, so I am creating a new one. I currently have a 2025 5.7L Hemi.e. It made 285 in the summer at about 4500 RPM, it makes 265 in the winter and a lot lower RPM. It is basically a stock engine with some high flow heads and a mild cam. The car is not run hard in the winter. What would be a reasonable power increase over what it currently has? How do these things work?

It depends on how many more horses it needs to make. But I doubt you'll see even an extra 25 horse unless you make some radical changes. But a little torque can be added. The biggest gains will come from a higher comp ratio, less compression, larger valves, and better exhaust tuning. The compression ratio should never be lowered over 11.

So when you say an extra 25 horse, that is all that needs to be gained? A 1:1 compression ratio or a higher one? Because my engine is 13.0:1. This engine already makes well over 300 HP. I do not want to make it a 1:1, because I am trying to keep my car light. I am looking for any gains that will allow me to take off a little weight, because it doesn't need much. What cam would you recommend? Would you also recommend something other than a mild cam such as a street/strip cam?

And also, would you be able to give me some specifics on compression ratio, valves and other mods that can get me close?

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