Reckless

iTrader: (9)

This info might be helpful for those deciding which block to go with:

Used our electronic shipping scale, all blocks are standard deck height with main caps in place except for Dart Billet which is raised deck:


LS7..............107
RHS..............110
Dart Billet......128
6.0L Iron.......216 (weighed another block and changed this; first block had some weight added in the deck)
LSX..............230

killernoodle

Great info! I didn't realize the iron block weighs 100lbs more than the aluminum blocks.

Fbodyjunkie06

iTrader: (10)

Wow, Todd do you know how much weight is lost after the machining is done on the Dart block?

Just comparing the weights between it and the RHS you would think it has much more reinforcement, thickness, strength and stability over the RHS and other alum. blocks in the aftermarket. With its added weight comes added strength with the extra reinforcements it has.

I know the Dart block involves a lot of machining anyways to get to usable form, but even after that it still has to outweigh the others by a good margin which would still lead me to believe it is much stronger than the other alum. aftermarket blocks.

Reckless

iTrader: (9)

Kurt specs all the Dart blocks before ordering to avoid doing a lot of machine work after they arrive. I don't think there is any significant change after they show up here. Certainly nothing more than a few pounds. The limiting factor for most on the Dart is the price.

Fbodyjunkie06

iTrader: (10)

Thanks Todd.

SPRAYED 01

iTrader: (22)

What does an ls1 weigh?

Fb0dy0nly

iTrader: (10)

http://www.norcal-lsx.com/forum/showthread.php?t=58925

MIGHTYMOUSE

iTrader: (59)

ERL prepped ls2-ish?

RAMPANT

iTrader: (17)

I know my REDs LS7 weighed in at 96lbs bored to 4.187, not much iron left in it though . That was with mains in place.

Not good for forced induction with that bore either.

conan

iTrader: (5)

Good info.

badhombre

iTrader: (4)

any iron 5.3 figures?

Reckless

iTrader: (9)

don't have an iron 5.3, but probably just a few pounds more than 6.0

David, I have an ERL 5.3 here that I can weigh tomorrow, I am gonna guess 108 and see how close I come

Sluggish

iTrader: (10)

Holy hell I should have bought an aluminum block.

masnart2000

I always read the 6.0L iron block weighed 80 lbs more than an LS1 block. But it's whatever I guess, 20lbs isn't no thang.

BLINGOLE

iTrader: (5)

Geez ,my ls2 block is 100 pounds lighter than my lq4! Holy crap maybe ill take better care of my ls2 now so i dont have to build a iron motor,

I8UR4RD

iTrader: (16)

yeah i picked my ls1 block up and was amazed at how light it was. guess I will have to put it on a diet now that shes going iron. great info. thanks!

lemons12

iTrader: (71)

Wow, always heard 60-80#s for ls1-6.0. Sucks I added that much weight! Power should offset it nicely however!

Thanks for the info!

Reckless

iTrader: (9)

I stickied a copy of this in the Gen 3 Internal section

stock48

iTrader: (17)

Weighed a bunch of blocks the other day and ls1 was around 95lbs. Iron 6.0 was 215-216 like said above. Iron 2 bolt sbc was 155, Iron 2 bolt main bbc was 205 lbs, and iron merlin 540 BBC was 235. I was shocked the 6.0 iron out weighs the factory bbc.

killernoodle

I'm a pretty scrawny guy and I can lift the ls1 up onto the engine stand no problem. I guess this explains why I bust the hoist out to get the iron 5.3 onto the stand