600 hp 350 chev in a 4x4? possible?
 

My friends have this buddy who claims his truck has "at leat 500hp at the wheels" with a non stroked N/A 350 chev. Naturally I told them that I wanted to see this thing because my friends want to shut him up.

For 600 hp from 350 c/i I expect to see a single plane intake, a name brand set of heads and an idle that just about shakes the fenders off, personally I doubt that a motor like this could get a 4x4 truck moving because it's bound to have no power below 3500 rpms.

I could see 500hp from a 502 or something like that but not from a 350 that's driven daily. If he has the power he claims he should be able to take my car in the 1/4! Or is it easy to make 500 at the wheels with a 350 chev?

Inch for inch an N/A Ford motor is going to make slightly more power than a Chevy with comparable parts (this was told to me by my friend who owns only Chevy's and builds street and race cars), so imagine getting 500hp to the wheels with an N/A 351W in a street car. Not too practical. Unless he has a NASCAR motor in his truck he doesn't have anywhere close to what he thinks he does. It's possible but not likely.

650 HP, riiiiight.
 

It's probably straight BS or else he's delusional, as many Chevy owners are.

Where's the dyno sheet? Doesn't have one? Then he's just making it up.

What's he run in the quarter (that's a clue). No timeslips?
Then he's just making it up.

I vote for delusional.

i wouldn't rule anything out. i mean, a 350 making 600 flywheel horsepower is only making about 105 horsepower per liter. so it's nothing outrageous. No power below 3000 rpm is a relative term im sure, it's still a 5,735cc motor. i'd just as soon believe him, i mean if you see what he's done to it and it's obvious he's lying, then that's that.

He's full of it. Although 105hp/liter isn't impossible, it's certainly VERY VERY unlikely. This isn't a 4 valve engine we're talking about here, and the kind of "at least" power the kid is claiming will take serious components. It's on par with a N/A 302 making "at least" 500hp at the crank. I'm calling BS unless he has some solid proof.

C'mon guys! It's a chebby, so it CAN'T make more than 300. Then when you consider it's a 4WD.....that takes it down to around 82. :D

For 600hp on a 350 N/A that would be Race Gas all the time I really dont think he does that. it could be done But liek the others said. it is not him doing it

Below is a blurry picture of our N/A, non-stroked 355ci Chevy that I just took on Tuesday. I can guarantee it will be over 725hp.

http://homepage.mac.com/pkrwud/.Pict...ngineside.jpeg

Take care,
-Chris

And this picture shows how much one of the 14:1 compression pistons sticks up into the combustion chamber:

http://homepage.mac.com/pkrwud/.Pict...c./piston.jpeg

Take care,
-Chris

So what kind of 4x4 is that going into Pkrwud?

In reality, telling someone that something is impossible (particularly someone with resources) is just as ignorant as telling someone you have a 600hp engine because you have a K&n and a "3/4 race cam" (I always loved that one....so where the heck is the other 1/4 anyway?).

Would it be practical to hook up this combination? Maybe if your Dennis Anderson or one of the other good ol boys on TNN, but for the rest of us no. I can't say the guy DOESN'T have anything like he claims, however odds are against him.

ROFL! That was pretty funny. I completely agree that the guy in question is full of it, but sometimes people need to watch what they say. Those numbers are very possible. Honestly, we'll probably be making closer to 850hp, but we don't discuss that in public. We also don't allow pictures of the head surface to be seen in public. Top secret stuff. It's going into our Sprint car (see, it's going to only be driven in the dirt, off road!).

BTW, you never replied to me before when I said you don't get out much! I haven't seen you in a long arse time! How have you been? Where have you been? Just get out? ;)

Take care,
-Chris

That is not Gas tho is it I thought it is Alcohal right.. But any How Looks nice to me:)

Barbara Streisand's initials are BS
 

PKRWUD:

I find the 'Anything is possible' adage to be another way of saying 'Whatever'.

Yeah, it can be done but I doubt this Chevy 4x4 guy has. He either read these figures in a magazine or is just delusional. I still say delusional.

Sure, a built, serious race car can make that kind of power but unless this Chevy 4x4 guy has this thing on a trailer and has timeslips to prove the claim of 650 HP, it's all bull, and as I mentioned in another thread, I hate guys BSing me because I have to assume that they probably think I'm either too stupid or too intimidated to believe the BS. I'm not stupid and I'm not intimidated (well, maybe if you have a gun pointed at me).

In any case, just because a Mustang 302 can make 350 RWHP N/A doesn't mean that my Mustang has this HP.

Same here; this guy may have a modded 350 that makes some nice HP but it doesn't mean he has 500 RWHP just because he says so. I would challenge that statement with a lot of questions and ask him where he runs it so I can see it do 10's or whatever et he's claiming. If he just built it, fine, but where's the dyno readout? You don't build a 500 RWHP unstroked 350 without dyno testing (unless you're delusional).

Not worth all this interest and I still say this is just parking-lot BS, plain and simple. I gave at the office, thanks, don't need any more BS.

Lol, In Texas it is common to see suped up 4x4's but 600HP and streetable is highly unlikely.

There is this guy I know that can pull off high 11's in his 4x4 88' chevy truck but it makes this funny whisting sound;)

Anything is possible though....Some of you might of seen my post about the 4 cylinder stang going 9.86 @140 mph.

If he would of told me I get about 700HP out of my turbo charged 4 cylinder. I would not have believed him.

Race him and find out

For a street running Chevy 350, 600hp crank HP is EXTREMELY unlikely without a power adder. For one thing, it would probably idle 1500+, for another I'm sure it would overheat at idle. Making that kind of NA power through street mufflers is also a very iffy proposition.

Making the power is not that hard, making it streetable is very difficult. So the answer is yes, it's possible, but the probablity of it actually happening on the street in a NA car is slim to none.

Really, I don't there is a great deal of disagreement here Mr. 5.0. I think pretty much everyone is saying the same thing. It's possible, just not probable.

Pkrwud, sorry I didn't get back to you on the other. I guess I just overlooked it. I do get out on occaision, but law enforcement is ever vigil, so it doesn't last long :)

I get to see this beast tomorrow...
 

I'll give a report tomorrow, right now I think a bet that'll pay off my M/C is in order...According to the calculator 600 hp in a 5000lb truck should trap about 115, take a couple mph off for aerodynamics and he should still run 110, easy ;)

Thanks! We have to run Methanol, and it "idles" at around 1500 rpm comfortably. It's peak rpm is in the upper 7k's, but we select our gears aiming for around 7200 rpm. What is really trick that we're trying this year is this set-up called a rev kit. It includes a plate that sits under the head, and has springs that go between it and the lifters. The pushrods go through the middle of them. The point is to help keep the lifters in contact with the cam, which is sometimes a problem with Sprint car engines because since they don't have transmissions, or a flywheel to spin, they are able to rev extremely quickly. 1500 rpm to 7000 rpm in .5 seconds.

Take care,
-Chris

Finally saw it, here's the visible hardware:

Weiand stealth intake
Holley aluminum heads
Holley 750 vac secondaries carb with only a single fuel inlet.
1 3/4" longtubes and 2 1/2" exhaust with bullet mufflers

Idled at about 1000rpm and seemed to run fine on pump gas so I'd say he's got no more than 400hp tops unless he secretly has it punched out to about 427". He refused to race me saying that it wasn't fair between a car and a truck, I think he knew he was full of BS and didn't want to look more like a chump.

Nothing like the motor that PKRWUD's working on.

Man, just call him on his BS. Tell him you know why he's too chicken to race you, cause he ain't got what it takes.