Designed for high performance and medium duty applications, the SHP LS Next Block is the ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders and high performance marine enthusiasts.

FEATURES
Dart priority main oiling system with provisions for stock oil filter mounting.
Full skirt design.
Accepts factory and aftermarket oil pans.
Siamesed cylinder bores with thick walls.
Cylinder barrels extended 0.375″ at the bottom of the bores.
Thick decks ensure reliable head gasket seal.
Blind head bolt holes available in 7/16″ or 1/2″.
6-bolt per cylinder capability.
Scalloped water jackets increase flow around cylinders for better cooling.
Clearanced up to 4.100″ stroke with steel rods.
Clearanced for center counterweighted crankshafts.
Splayed outer bolts on middle main bearing caps.
Provisions for LSX roller lifters and cam.
Uses OE front and rear covers.
All OE bolt holes for starter, water pump, etc.
Windage trays.
Parts kit included (PN: 32000018).

Deck Height: 9.240″
Cylinder Bore: 4.125″
Cylinder Bore Max: 4.185″
Main Bearing Size: Stock LS
Main Cap Material: Steel
Main Caps: 4-Bolt 1-5
Cam Location: Stock 55mm
Lifter Bores: Stock 0.842″ Diameter
Rear Seal: Standard

The post ATK Machined Dart LS Next Cast Iron Bare Blocks 31867211 appeared first on ATK High Performance Engine.

ATK blocks are stroker clearanced and will come with the cam bearings and brass freeze plugs installed. 

Engine Specifications:

• Block: 100% New Bare Block with 1pc Rear Main Seal
• Bore: 4.000” (4.0003-4.0008”- Pistons size vary, final honing may be required)
• Maximum Bore: 4.060” recommended
• Displacement: 350CI
• Main Journal Type: Chevy 350
• Engine Block Material: Premium Iron Alloy
• Engine Block Style: Aftermarket, based off the Vortec 350 Roller Block
• Engine Block deck Height: Standard Deck
• Engine Oiling System: Priority Main
• Fuel Pump Boss: Yes
• Main Bolt Style: 4 Bolt
• Main Caps Included: Yes
• Main Cap Material: Cast Iron
• Main Cap Fasteners Included: Yes
• Main Bearings Included: No
• Camshaft Bearings: Dura-Bond, installed and clocked to OEM position
• Freeze Plugs: Brass, installed and sealed
• Oil Galley Plugs: Installed and sealed
• Roller Camshaft Compatible: Yes
• Stroker Clearanced: Yes, but the assembler must always check as components differ.

Block Specs:
Camshaft bearing line boring in STD. (1.8705” – 1.8710”)
Main, line honed (2.6408” – 2.6415”)
Cylinder honing ID: (4.0003-4.0008”)
Minimum deck height (9.014”)

Disclaimer: The recommended components listed are ATK’s recommendations of parts to be used, applications vary and your build may need something different. Contact ATK for a recommendation if you are not certain about a component to use. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts.  ATK reserves the right to substitute parts used in engines if necessary.

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