Guitar

iTrader: (9)

Still no answers why LS motors are stuck in the 6s while mod motors are putting busses on them.

NateLS1Mustang

iTrader: (2)

Your friend must have been on the same happy dyno dyno to make 620hp with stock 243 heads on a 5.7l. I'm calling bullshit in the first place.

R6cowboy

iTrader: (3)

Yeah, I find stock (aka. untouched or unmodified in any way) 243 heads very unlikely for the hp number said. But you know how it always goes questioning him. Usually leads to some sort of freak-out.

CamOnlyJabroni

620 on stock 243's would be magic in the making. Wouldn't be a need to port it period at 5.7 displacement.

codyvette

iTrader: (24)

That is quite an accomplishment for sure. You may likely not see an answer to that from an LS, maybe nof ever. Would it be imposssible, no. There would have to be substantial reason to spend that kind of money. In most cases, it makes more sense to go with an aftermarket block, heads, etc. The mod motor used to do that had absolutley zero stock mod parts left on it.

HioSSilver

iTrader: (8)

Yup....untouched ports and stock valves. I don't think they were the light weight valves either. 5.3 ironblock(ruels say has to be iron block) bottom bored to 5.7. Wet sump with external pump, hydraulic cam. Said he used junk weisco off the shelf pistions, stock crank with good rods. It was built to be a budget race motor for the dirt guys. Carb'd to. It was a experiment. Won it's race a couple weeks ago. He wanted to use stock rods but he had these on the shelf. He said he basically wanted to build one like anyone could in their garage.

His personal race motor is a simple 408, gmpp ls3 heads with springs to match the cam but other than that untouched. Same cam as 5.7 and makes 720.

408-99-f

I don't know anything about you or your car, nor was I even talking about either.

I was stating that torque/hp curve play a bigger roll then a peakey hp number

TT427

iTrader: (1)

misunderstanding, was in reference to who you quoted lol

automach1

Wrong they have been faster than the LS with the stock 4.6 block. The LS is the motor that needs to be billet everything to do anything.

automach1

Yea they have loads of average power. Far from a peaky hp number. Just like the 3400lb r/w pure street 4.6s that made ~460 and trap 130+. The car that made 615+ went 150+.

automach1

It went 150+ numbers are legit. Yea svtp to find info there is your first mistake

codyvette

iTrader: (24)

That stock block had more girtles than the 50's. That ain't stock. If they would have had an aftermarket option, they would have went with it.

HioSSilver

iTrader: (8)

Actually there isn't much legit about it at all. I didn't even see any info on the engine. It makes way more than the nearest 5.4. Then you claim it goes 10-12 mph faster than you while having 100+ less hp.


Now lets get with more common h/c builds. You seem to be avoiding that.

I've saud that before myself.

Nick.H

Doug aren't you a good bit ahead of the nearest bolt on LS6 fbody

automach1

Oh with the stips.

No it does not actually. There are 2 others that make 590+ sae. Open your eyes **** boy. Yea it went faster with less power because it weights about what your car does not 3700lbs. Not to mention 9k + shift points and average power out the ***.


A h/c 5.4 is not common for obvious reasons. However boost for boost mod for mod the 5.7 has nothing on it. The stock ported LS heads are junk compared to a ported GT head.

codyvette

iTrader: (24)

I'm not ******* his accomplishments, they are awesome. I just call it how I see it. If you only have one thing in the world to hang on to it should be genuine.

HioSSilver

iTrader: (8)

No I'm not actually

H/c 5.4 is not common because they are a pile of ****. Apparently it takes a 9k rpm race engine with no doubts lots of custom **** to even get in the ball park. .....open your eyes dipshit. You even failed at making them go na.


I think i would be rather depressed at 9k+ rpm and only 600whp to be honest. That car is likely much lighter than mine and you still haven't posted **** for builds or info on the cars. All this confirms you post nothing but bullshit.

408-99-f

After I figured as much, and I couldn't agree more.

R6cowboy

iTrader: (3)

The only bolt on LS6's that have been in Hio's neighborhood have been C5Z's, that I know of. Don't recall any bolt-on LS6 F-bodies as fast as grand poobah.

If there are, I'd guess you know of them. Who has been faster?

TT427

iTrader: (1)

you never know what truly is in a shop car... it's all a promotional thing and a sales pitch for their ****.