SKU: 2405501178

DART SHP LS Next PRO2 Cast Iron Engine Block 4.125" Bore 9.240" Deck | 1/2" Inch Head Studs

Sale price$13005.00 Regular price$14450.00
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

DART SHP LS Next PRO2 Cast Iron Engine Block 4.125" Bore 9.240" Deck | 1/2" Inch Head StudsThe Dart SHP LS Next PRO2 Cast Iron block is the ultimate upgrade for your build with An Added EXTRA! Designed to handle ALL The Horsepower the Pro2 Block includes 1 2" Inch Head Stud Holes to support Max HP! 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.

The Dart SHP LS Next PRO2 Cast Iron block is the ultimate upgrade for your build with An Added EXTRA!
Designed to handle ALL The Horsepower the Pro2 Block includes 1/2" Inch Head Stud Holes to support Max HP!
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 & 1/2" Inch Head Studs;
- 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:31867212UPGRADE;
- 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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Alternatively, We are available for Live Chat right now!
Shop with confidence with free freight Australia wide & discounted pricing.
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: 2405501178

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4.4 ★★★★★
Based on 18 reviews
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A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Super cute
Color: Bunny (Mauve), Size: Small
Super cute and fuzzy. Definitely perfect size for a puppy and not too loud. The fur is very soft and the nose is sown on not a hard piece that can be chewed on. Very good quality too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
B
Verified Purchase
Buyer
Lowell, US
★★★★★ 4
Normally amazing
Color: Spiky Ball (Blue, Orange), Size: Medium
We have purchased these slightly spiky dog balls several times for our very strong jaw heavy chewer dogs and they’ve been amazing. They don’t break down they don’t get torn apart the squeakers don’t even pop out of them. So we ordered another package because we’ve lost a few outside to the lawnmower… oops and the package that got delivered today had only one ball that squeaks and the other does not. THIS IS A PROBLEM ! Unfortunately my female dog got to the new squeaking ball first and my male got to the non-squeaking ball and he was NOT happy. Basically once they claim a ball it’s theirs and the other dogs don’t go near the ball they claimed. So he’s following my female around and every time she squeaks the ball and I’m just waiting for him to attempt to take it from her causing damage to her. Normally… These are amazingly fun, tough, durable but also squeaking balls (that’s rare in a tough ball) that my dogs absolutely love. This time just got a bad batch I guess. When they squeak the dogs LOVE them. After several months of play the squeaker might break inside of the ball but the ball never comes apart or gets damaged. And we as the owners love that they don’t break down are not able to be ripped or torn even by our very strong jawed and big jaw muscle dogs. They are also great for in the house play because they’re small enough that they fit completely inside our dog‘s mouth but obviously not small enough to get swallowed so when we throw them in the house for fetch the dogs can jump up and catch them fully in their mouth so they don’t cause any damage to the walls when they hit the walls. They’re not super heavy but they’re incredibly durable. Definitely worth the price especially if you have heavy chewers or big jaw muscle dogs.
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Reviewed in the United States on April 28, 2026
M
Verified Purchase
MADDY
Bozeman, US
★★★★★ 5
Best fun indestructible toy
Color: Crinkle Duck (Yellow), Size: Large
Truly indestructible no matter how much our oittie tries. She has owned it for three months works at destroying every day with no success. She carries it everywhere. Best purchase for chewer, more fun than the popular rubber heavy duty toy. Do not hesitate your pup will thank you for this fun distraction.
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Reviewed in the United States on May 30, 2026
P
Verified Purchase
peter contino
Massapequa, US
★★★★★ 5
My dog loves this toy!
Color: Bunny (Gray), Size: Large, Color: Bunny (Gray), Size: Large
High quality, big toy, perfect for a medium to large size dog. After a few months of serious chewing I had to buy another one, but well worth the money! Rocky loves it.
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Reviewed in the United States on June 11, 2026
D
Verified Purchase
Denise Boyd
Carnegie, US
★★★★★ 4
Great toy but if your dog is an aggressive chewer, please think twice.
Color: Crinkle Chicken (Brown), Size: Large
I received this on May 23rd and on June 8th, after playing with this thing every day, our recently acquired 36 lb dog finally ripped it open and got out all the plastic and the squeaky part. Lily Belle will miss you, chicken. Lily loooooved this toy! She'd toss it in the air, chew on it, pull it with her teeth etc. but as much as she loved it, we won't replace it. It's just not durable enough for her. If your dog is an aggressive chewer, you might want to try a different toy. I hate that this lasted just a smidge over two weeks because Lily seemed to truly enjoy this toy. RIP, squeaky chicken!
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Reviewed in the United States on June 9, 2026

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