onfire

iTrader: (17)

Talked to a tech at World:

Warhawk = 133lbs

LS1 = 90lbs

LSX = 225lbs (ouch)

6.0 Iron ~ 180lbs

Has anyone weighed these to confirm?

Cliff

iTrader: (19)

lSX 225

Beaflag VonRathburg

iTrader: (176)

My friend told me his iron block weighed 178 pounds. I didn't see the scales, but it sounds right in conjuction with what you were told.

89Formulaws6

iTrader: (52)

i was always told that the iron blocks weighed 100 more then the ls1

Jeff@TotalPerformanceEng

iTrader: (6)

Well, being that I own the LSx, and have had all but the Warhawk, I can tell you that I dont give a **** what the weight is.. You cant tell.. These were ALL in the same car. The people who are wrapped up in the weight are the same guys who dont got a clue.

It amazes me that guys worry about the extra hundred pounds, yet they forget how much EXTRA power it makes.

If I have an extra hundred pounds between the frame rails, yet I can put 500-1000 more HP at it, who fuking cares about the hundred pounds. Its a piece of cake to pull 100 pounds out of the front of the car. Remember, its not like the weight is in the roof. It right off the ground.

Just my opinion

DanZ28

iTrader: (5)

If your a drag racer and trying for all you can get, especially on an NA setup, then a 135 pounds extra on the nose of the car makes a pretty good difference. If your making a 1000 HP and drive it on the street and like dyno numbers, then your right, who cares.

silicone boy

An extra hundred pounds at the apex of hairpin turn is a bad, bad thing. Try it in a 2700 pound RX7 and you'll see. It's even worse in an understeering F-body. You may wind up plowing off track and taking a bunch of other cars with you. The other drivers will be very mad that you put more weight in your engine bay.

tvrbo

iTrader: (2)

thanks for the numbers.

Anyone know what an L92 weighs?

NemeSS

iTrader: (127)

should be in the same range as ls1 90 lbs
or ls2 which is even lighter than a ls1 at about 85 lbs.iirc

ArKay99

iTrader: (1)

I just weighed my LS1 bare block. 92.5 lbs. is what it weighed on my scale.

DanZ28

iTrader: (5)

Good point too.

383ss

iTrader: (14)

the only thing amazing is that you can't tell the difference. I went from an LS1 383 to a 6.0 408 iron block and it was a HUGE difference and VERY easy to tell.

once you get all the weight out of your front end, how do you compensate for the extra 100lbs then? you can't.

DONAIMIAN

iTrader: (18)

Thats a pretty big generalization. If you plan to spray or boost the car then yeah its not really an issue, but I open track this car and it will never be anything more than N/A, that being said, being 100lbs lighter is an issue.

MerlinPro

AS a point of accuracy, our Warhawk is 133lbs with caps and sleeves. The Motown aluminum SBC is 100, also with caps and sleeves.

onfire

iTrader: (17)

Ouch, I'll correct my post. The guy at World that answered the phone said 100lbs.

He also said that the only way World would build the block would be with a 10.5 : 1 compression ratio (I was asking about a boost build). He said another shop could buy the block/heads and do a custom build. Accurate?

Also said no one is currently using a Warhawk with boost. Accurate?

His answers started me down a different path FWIW.

The Black Mamba

I was thinking the iron 370 weighed right at 170lbs. Maybe I'm off though...

Beaflag VonRathburg

iTrader: (176)

Bob@EPP is building a setup now with the warhawk and a F3R procharger.

MerlinPro

On
I'm sorry for the confusion. Tech might have looked up Motown number by mistake.
No one to our knowledge is running one under boost. However I have heard of several projects in the works.
It's my understanding that we will offer custom pistons as an option on engines or shorts. IF you PM me, I'll inquire about the specs you desire. Or you can buy the block and have your builder spec pistons, rods etc.
Here from our World site is the Short I-Sheet which has all the data about the way we will build our combinations. The header at the top explains about using other preferences:
http://www.worldcastings.com/documen...rt_warhawk.pdf
Everyone should take advantage of the data we put out on our sites. We'll gladly answer questions after you're familiar with the parts.

john_sblendorio

iTrader: (4)

I remember seeing a company who could machine the block for wieght savings. I wonder how much could come off the LSx without sacraficing strength?

Jeff@TotalPerformanceEng

iTrader: (6)

So you mean to tell me that if you removed your battery from the front of your car, you would notice a HUGE difference?? Come On......seriously.

The weight differenct is peanuts. whats the difference between a 408 and 454LSx?? 50lbs??
There is NO way you can tell the difference.