I don't want to go into any vendors thread with information about a competitors product. So, I thought I'd summarize what we know about the various block being developed, or in production for the LSx based platform. If anyone has any other information they'd like to have added, please let me know, and I will add or correct any information that needs attention.

Listing is in Alphabetical Order:

Dart
Billet block avaliable in various deck heights
Camshaft relocation avaliable
More water capacity than OE
Darton sleeves
Stronger thicker decks
Billet main caps

GMPP C5R
C5R vs Stock GM block - https://ls1tech.com/forums/generation-iii-internal-engine/310618-c5r-block-info-vs-sleeved-blocks.html
cast from premium 356M aluminum
"Hipped" @ 30K PSI to increase strength and remove porosity
X-ray inspected
custom cylinder liners
Screw in AN water jacket plugs
4340 head studs
8620 Main Caps

GMPP LSx
Cast Iron
Designed in conjunction with Warren Johnson
"Capable" of supporting 2000 HP
100% CNC Block Cast iron (280 kpa tensile)
True proirity oiling
Siamese cylinder bores
6 head bolts per cylinder
Standard 4.400 bore spacing Standerd deck height (9.700 tall deck to Follow)
Increase deck thickness
LS7 6 bolt Doweled in place Billet Main caps
Max 4.500" Stroke (tall deck only) Capable of a 364 to 500+ cid Tall deck for large displacement
Wet and dry sump capabitly
Deep Skirted Head bolt Holes
Orange power coat
Maintains all OEM LS family exterior mounting features
Accepts all Gen III & LS Heads ,cranks Cams ,ect.
Includes Unique new cam retainer,rear cover and lifter retainers and OEM cam bearings
Front Motor Plate mounting holes added
Added material above cam bearings for added strength
Approximate Finish weight 225 lbs
9.26 semi finished deck height (Standard deck height)
3.990 bore ready for honing,maximun 4.250bore @ .200 Minimum wall thickness.

6 bolt LSX bolt pattern
11mm standerd bolts 8mm exterior /interior bolts
Can be machined for 1/2 in bolts or studs

All 5 cam bores for standard small OD bearings P/N 12453169
can also be machined to 60mm roller bearings

Added material around standerd .842 lifter bore also can be machined for large lifters and/ or 1.050 bronze bushings

O-ringed screw in soft plugs

Accommodates any LS small block oil pan and oil pump, standard LS wet sump systems and LS7 dry sump systems fit.
Extermal oil pump feed @ rear of block
Front oil line can be plugged and external oil pump /aftermarket dry sump system can be used.

Belt cam drive can be accommodated.

7th tranmission bolt hole added per early sbc

Main web bay to bay breathing holes for increased HP

Access windows for cylinder head stud access (intake side)

Extra Breathing pockets added near starter for better windage


Kostecki
Based in Australia
6 head bolts per cylinder

LSM Systems
Billet Block (Steel or Aluminum) avaliable in various deck heights
All units custom built per customer specs
Add, delete, or revise oil galleys or
Add stud bosses, in any location based on the customer's needs
4340 main caps
Aluminum billet block is available with either sleeves or plated with Nikasil
Block will accomodate large bearing cam up to 60mm roller

World Products
Warhawk
Performance Casting from World Products
Multiple bore and Stroke configurations
9.240x3.990
9.240x4.115
9.800x4.115

6 bolt LSX bolt pattern

 

Nice this should be in an archive or FAQ somewheres

 

Just like to add that the LSM block comes with billet 4340 main caps. The aluminum billet block is available with either sleeves or plated with Nikasil for the same price. Block will accomodate large bearing cam up to 60mm roller. The block is also available in either billet aluminum or billet steel.

Al

 

Good thread here.......

There's a company called ERL that makes what they call a Super Deck block. They claim they can handle a 4.200" bore.
For more info you can go to www.erlperformance.com or call (812)948-8484

The future of the Gen 3 performance industry looks bright

Richard

 

Updated. I can add the ERL, but since it is re-sleeving a stock block, I have left it off for the moment. This was primarily looking at aftermarket blocks.

 

Hopefully the prices will fall too, just like SBC parts have over the years.

 

would be nice to add the approx weight of the warhawk block. maybe MSRP's also

 

warhawk block bare with no main caps is 98lbs.

 

Great post!

 

Very informative.. now I don't have to use the search as much.