SKU: 73693563868

DART SHP LS Next PRO Cast Iron Engine Block 4.125" Bore 9.240" Deck

Sale price$13005.00 Regular price$14450.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

DART SHP LS Next PRO Cast Iron Engine Block 4.125" Bore 9.240" DeckThe Dart SHP LS Next PRO Cast Iron block is the ultimate upgrade for your build. The Dart SHP block is designed to support high flow & efficient cylinder head developed for the LS platforms, Whilst rectifying some of the noticeable issue of the 'Y' shaped LS bottom ends. This block is the ultimate foundation for your build. Features Of Your New Dart SHP LS Next Pro Cast Iron Block Cast with superior strength 220 BHN (Brinell Hardness) premium cast

The Dart SHP LS Next PRO Cast Iron block is the ultimate upgrade for your build.
The Dart SHP block is designed to support high-flow & efficient cylinder head developed for the LS platforms, Whilst rectifying some of the noticeable issue of the 'Y' shaped LS bottom ends.
This block is the ultimate foundation for your build.

Features Of Your New Dart SHP LS Next Pro Cast Iron Block
- Cast with superior strength 220 BHN (Brinell Hardness) premium cast iron;
- Conventional style 4-bolt steel main caps;
- ARP Main Studs;
- Full main webbing for maximum bottom-end strength;
- 6 bolt per cylinder capability;
- 8-counterweight machining;
- Full skirt design;
- Extended cylinder barrels at the bottom to provide greater piston support for all combinations;
- Extra-thick Siamese cylinder bores;
- Blind head bolt holes don't go through into the water jacket;
- Provision for lifter oil restrictors in the lifter valley;
- Priority main oiling;
- Pro-Stock/Pro-Mod big block style stepped main oil galley;
- Thick deck to ensure reliable head gasket seal;
- External oil filter (must be used with stock or aftermarket oil pumps);
- Dual starter mounts;
- Expanded water jacket on #1 cylinder for additional cooling capacity;
- LSX-style lifter bosses and dog bone provision are provided;

Specifications
- Brand:Dart;
- Manufacturer's Part Number:31867212;
- Main Journal Type:LS mains;
- Engine Block Style:Aftermarket;
- Deck Height (in):9.240 in.;
- Cylinder Bore as Shipped:4.115 in.;
- Cylinder Bore Diameter: 4.125 in.;
- Maximum Bore Diameter:4.185 in.;
- Engine Block Material:Cast iron;
- Engine Block Weight (lbs):227 lbs.;
- Main Bolt Style:4-bolt;
- Main Caps Included:Yes;
- Main Cap Material:Steel;
- Main Cap Fasteners Included:Yes;
- Main Bearings Included:No;
- Rear Main Seal Style:1-piece;
- Finished Cylinder Bores:No;
- Raised Cam Location:No;
- Cam Bearings Included:No;
- Freeze Plugs Included:No;

Want To Know More About Our Dart Engine Packages?
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(03)8595 4343
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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 73693563868

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Verified Purchase
Junio
Dallas, US
★★★★★ 5
Good quality. Excellent price
Color: Green
Very durable and lots of fun!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
M
Verified Purchase
Myrna S
New York, US
★★★★★ 4
Fun toy but not as durable as I hoped.
Color: Green
I just rescued a dog from the shelter. She is super sweet and playful but she loves to chew her toys so I needed to buy her ones more durable to play with. This toy caught my eye but I was concerned that it might be too large for my small 7 pound terrier mix. After receiving it, I really loved the colors and the way it looked and my dog loves playing with it. Everything about it is great except that within a few weeks of playing with it, she already managed to make a small tear in it. It's not to the point where I would take it away from her toy box but I just wish it was more durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2025
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Great for tug of war
Color: Green
All the arms make for a good tug of war toy. It’s tough enough that my 70 lbs lab can pull on it and it’s fine
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
A
Verified Purchase
A. Dykes
Lake Worth, US
★★★★★ 5
Durable
Color: Green, Color: Green
We’ve had it for awhile now and it’s still (mostly) in one piece. Has held up well for our heavy chewing puppy. It lost a tentacle but that’s nothing compared to the level of destruction our dog has put other toys through in much shorter amounts of time. Recommend for heavy chewers and will likely buy again!
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Reviewed in the United States on February 24, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 3
Not large
Color: Green
This is a lot smaller than it appears in pictures. I was going to give it to a large dog but I’m worried it would be a choking hazard. instead I’m going to give it to a pug. Seems fine quality wise just not “large”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026

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