How so? A NA z06 is rated at 505, a blown 5.4 gt-500 at 500hp. The blown Caddy motor is rated at 550 and the blown Vette motor is rated at 620. Now when Ford brings out its new motors in 09 or 10 or whenever that is they "may" be better than the GM motors, but that remains to be seen. I`ll tell you this though the 5.0 302 in the ford`s all through the 80`s certianly were head and shoulders better than the 5.0 305 in the GM`s. I got waxed by many 5.0 fox body stangs in my 89 Camaro RS 305 I had back in the day and can personally attest to that.

 

Not to pour gas on the fire, but to MOST people, almost ALL V8 blocks will look very similar.
So who really cares? It's how the assembled engine runs that I care about. Frankly, I don't think the new Hemi is anything like the LSx other than being single cam and two valves per cylinder, and a somewhat similar plennem. The two engines really behave like totally different animals. (and sound totally different.)

Here's my Hemi running
http://www.youtube.com/watch?v=Vr9mQDoC-qE

Here's my LS1 running
http://www.youtube.com/watch?v=sKbHlBQAwYI

 

ya, leapfrogged was a bit much, but the factory supercharger on the 4.6 DOHC put it AHEAD of GM (LS6) and was unmatched until the LS7 was released, where its equal (5.4 DOHC was released as well.

as for the LS9 and LSA, the bar is being raised, but those arent even out yet.

 

While I totally understand what you're saying about character, the 5.7 HEMI is so similar in design to the LS1 that there was initially speculation it was reverse engineered from one. I can't find the article on line, but one of the mags did side by side comparisons with cutaway drawings and they are pretty darn similar.

 

I get in trouble when I antagonize Scott, so to get my "fix" for the day, I was taking a poke or two at you in hopes that it wouldn't be noticed.

As for bolt-on N/A 4.6s....my numbers have been slaughtered, as they should have been, given that I was doing that many years ago.

See ya around.

Bob

 

They don`t really all look alike. Take a 5.7 hemi bare block, an LS1, an LT1 and a 4.6 ford block, the 2 that look most alike are the Hemi and the LS1. Maybe its just chance, but they are the most similar looking of the 4. Of course they are not exactly the same. If they were the same I could bolt a set of Hemi heads on my LS2 ...lol..That definetly ain`t gonna work.

both your cars sound good by the way!

 

I hope to see that new beast of yours in action sometime. It was always great watching the old 99 scoot down the 1320.. Unless I was beside it.

 

I have to disagree. The Challenger is MUCH better looking in silver than orange.

 

For me silver looks better just because i've seen so many orange pics since it's the official color Dodge used for marketing

 

I don't think you actually read that ling, so I guess I need to spell it out:

Anyone who says the Hemi borrowed from the LSx is full of it & doesn't know what they are talking about. Even if it comes from a reader written article lifted from LS1LT1.com (an objective and unbiased source, no doubt...not!) and posted on a website called "articlegarden.com".

There. That ought to clear it up.

They compare the pushrod Hemi to the pushrod GM engine in the comparatively well recognized, and respected Popular Hot Rodding magazine article I linked.

One thing they clearly don't say is the Hemi was based on the LSx engine... most likely because it's ridiculous and they know better.

Comprende?

Since you obviously either don't know any better or are making things up, here's a picture of the LSx engine block and the new Hemi block:


(srt-8 block)


(5.7 block)



As you can plainly see, there isn't a single item between the 2 blocks that remotely looks the same, whether you look at them from the front, top, or side. I'm guessing your engine builder friend is either imaginary or counts piston bores as similarities, or goes by the name of Stevie Wonder.



Only when there's people that come here not knowing what they're talking about.

 

Yes, there was speculation it was reversed engineered, mainly due to Chrysler reverting back to a pushrod V8, that it had the same displacement as the LS1, and that it produced similar horsepower (though more torque). However, actually, it's jumpoff point was a combination of the old 360 and the old Hemi. A wide range of new ideas with an eye on power and durability from the start went into the engine, along with fuel economy.

There was also the notion by a few clueless souls that Chrysler stole it's head and intake design from GM's LS6 engine. However, the LS6 came out in 2001 while the Hemi came out in 2002 (would have been the fastest copy job in history). If that wasn't enough, when anyone stops for a second and realize that the LSx's compact inline rocker arms and Chryslers potentially higher flowing and comparatively larger heads with opposing valve angles and related pushrods would instantly see how ridiculous that notion is.


Here's the cutaway drawings. Outside of pistons, not very similar:

 

You are entitled to your own opinion. I still think especially after looking at the pictures there are similarities. The New 5.7 Hemi compares more closely to the LS1 than the LT1 compares w/ the LS1 and they are made by the same company. IMHO. One example the fact that both New 5.7 Hemi and LS1 heads cover the lifters,where as the old hemi and LT1 do not, also look at the area around the cylinder bores, does the new Hemi 5.7 not more more closely resemble the LS1 than the old Hemi in this area? OBVIOUSLY they are not EXACTLY the same. But look at how it more closely resembles the LS1 than the old hemi.

Donald told me 2 years ago that he thought Dodge looked at the LS1 block and used some of its better design features in their design. If you think companies don`t do that then you are niave. Donald curently has a big block chevy powered single turbo 77 trans Am. He also built a big block for the hot rod engine builders shootout a few years ago. So I beleive him over some guy on the internet. But again he never said they reverse engineered it and made an exact copy.


Here`s a pic of the old school Hemi motor. Which looks more similar to the New 5.7 Hemi that you have pictured above? The LS1 or this old school Hemi. I think that answer is obvious as well. The LS1.




Again can we just chose to disagree. I think both motors are excellent. I think I`ve made that abundantly clear. You think the LS1 had no influence. I think it did. End of story. What difference does it really make? Either powerplant makes great power and both are excellent engines. I think we at least agree on that. And isn`t that whats important?

 

The silver and black look much better to me as well than the orange. IMHO...

 

It absolutely makes sense that the LS1 would be closer to the hemi then the lt1. The LT1 was basically the same v8 that GM produced for decades. The ls1 was a modern redesign. Taking into account that they made changes to both produce more hp and get better mileage, any other contemporary v8 designed with the same objective would have to be similar in some respects. Assuming the LS1 used the latest in pushrod tech it would take quite a jump in technology to come up with a completely different design. Does that mean its a copy? No more then any other mfg in any other market producing the same device is.

 

I don't mean to jump in here if this was directed at GuionM in particular....but it looks to me that the Old HEMI, and the new HEMI share more in common than the LS1 and either HEMI......

Most noticably (to me) is that both HEMI blocks somewhat follow the contour of the cyllinder bores, and the coolant channels are more similar. Neither of those features is related to the LSx's at all......