THREE OF THESE SHORT BLOCKS ARE CURRENTLY IN STOCK
This is the short block set we use for most of our big power builds. John McGhee from Cutaway Racing was with us at PRI 2023. Listen to him explain why he likes this build so much and the drivate long block topped with our All Pro CNC ported heads:
- Dart SHP Pro Block - 4.125" bore
- 30% Higher Tensile Strength than the Original Dart SHP Block
- Callies' Fully Counterweighted (CCW) Magnum Crankshaft
- Calico Coated Rod and Main Bearings
- Dyers NH 300M or Callies Ultra Connecting Rods - H-Beam or I-Beam Enforcer
- Diamond R-Series 2,000HP Rated Pistons
- .225 Wall Wrist Pin
- Available with Either 15 Degree (LS3) or 12 Degree (LS7) Valve Reliefs
The Dart LS Next SHP Pro is the newest in Dart's line of LS Next engines blocks. The difference between the "Pro" and the SHP LS Next block are the metallurgy and standard main studs instead of bolts. The Pro has a higher nickel content for 30% higher tensile strength. Bottom Line: we use the "Pro" because these are big upgrades at a relatively low cost and it can handle more power.
SHP Line Features
- Full side skirts to accommodate OE oil pans
- Accepts LS style Oil filters
- Retains all factory bolt hole locations
LS Next Features
Retains all of the LS Next designs features not found in competing blocks including but not limited to:
- Longer cylinder sleeves,
- Priority main oiling
- 4 bolt splayed main saddle structural
The center counterweighted Magnum crank has a 4.000" stroke and is made from 4340 Timken alloy. The center counterweights are a major upgrade as they increase the cranks stiffness by about 25% while reducing harmonics. The net result is less stress on the main bearings and longer engine life. Watch the video below to learn more.
We use either Dyers NH double-banded rods or Callies Ultra rods depending upon availability and customer preference. The Dyers rods are made from 300M alloy which gives an unrivaled strength to weight ratio. As such they are lighter than the Callies rods.
The Callies rods are made from extremely clean Timken 4330 steel alloy. You may choose from the options of H-Beam or I-Beam Enforcer rods. Callies crank and rods are forged in Trenton, Michigan, and manufactured 100% in Callies' Fostoria, Ohio facility. Here is Callies' Brook Piper again to explain the differences between the available rods.
Topping off the rotating assembly are Diamond's Race Series pistons which are machined with their newest and most precise CNCs in Clinton Michigan. Among their features :
- 3D milling on piston crowns for ready to install finish
- Valve pockets designed to work with most aftermarket cylinder heads
- Offset pins for quiet operation
- Moly skirt coating for friction loss and skirt wear protection
- Side gas ports for better ring seal
- 2618 material for High HP-NOS-Boost applications
- You can select either the LS3 or LS7 piston design. Dish-type is standard but there are a wide range of options.
Calico-coated Clevite bearings are standard, as are ARP fasteners.
The skill of the people who finish-machine and assemble your short block is just as important as the parts and design and we've got some of the best around. Further, BOROWSKI RACE ENGINES, INC. boasts state-of-the-art CNC machining equipment which empowers our staff to build the best engines available. This was recognized with our being named Race Engine Builder of the Year by Engine Builder Magazine.
The machining and assembly of your short block is as important as the parts selection. As you'll see in the photo, we have the best equipment available. Honing is a critical machining process as it determines final dimensions and surface finish. Please watch the video to see how we handle honing. We're confident that's how you'll want your block honed after watching.
The skill of the people who finish-machine and assemble your short block is just as important as the parts and design and we've got some of the best around. Further, BOROWSKI RACE ENGINES, INC. boasts state-of-the-art CNC machining equipment which empowers our staff to build the best engines available. This was recognized with our being named Race Engine Builder of the Year by Engine Builder Magazine.
The machining and assembly of your short block is as important as the parts selection. As you'll see in the photo, we have the best equipment available. Honing is a critical machining process as it determines final dimensions and surface finish. Please watch the video to see how we handle honing. We're confident that's how you'll want your block honed after watching.
Call 815-725-2727 to discuss your engine requirements or just click in your selection to place an order.
