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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.

The post ATK #13ZB 350CI Bare Block Machined & Ready to Assemble appeared first on ATK High Performance Engine.

Note:

• When receiving your new LS7 lifters we recommend removing them from the packaging and checking for any obvious signs of damage to the lifter body or wheels. The lifters should then be washed in either an automotive solvent tank or with mineral spirits to help remove the stiff packing grease used during lifter assembly. We then recommend you check rollers for any binding or roughness before soaking.
• Proper adjustment of these hydraulic roller lifters is the installer’s responsibility. The incorrect preload can cause lifter failure and possibly engine damage
  These lifters are manufactured to GM OE specification for fit, form, and function.

WE ALWAYS RECOMMEND THE USE OF NEW, FACTORY TYPE LIFTER TRAYS WHEN INSTALLING NEW LIFTERS!

NO WARRANTY ON THESE PARTS

The post Authentic GM/Delphi LS7 Lifters #12499225 (Reboxed) appeared first on ATK High Performance Engine.

The Chevrolet LS-Series Hyd. Roller Lifters are available as OEM production replacement lifters for your everyday driver/street machine or racing lifters developed by Gm Racing and Power train division to withstand the rigors of sustained high RPM usage! You can rest assured that these Chevrolet parts are manufactured with high quality materials you can trust to maintain the reliability and performance of your LS Powered Vehicle.

The post Authentic GM/Delphi LS7 Lifters #12499225 (Reboxed) with Guides appeared first on ATK High Performance Engine.

This crankshaft is an OE Reman version of GM #89017522 without the high price tag.

Crankshaft Model Or Series: Standard Weight
Make: Chevy & GMC
Engine: LS-Series (5.3, 5.7, 6.0)
Material: OE Nodular Cast
Stroke: 3.622″ Stroke
Balance: Internal Balance
Rear Main Seal: 1 Piece Rear Main Seal
Reluctor Wheel 24-Tooth
Main/Rod Journal: .010/.010

The post LS 3.622″ Stroke Crankshaft Reman 24 Tooth appeared first on ATK High Performance Engine.

Features & Benefits

-Bronze Valve Guides
-Dual valve springs for .650″ max lift
-CNC finished faces and bolt holes for extreme accuracy
-355-T6 high density aluminum
-Machined for screw in studs and guide plates
-All factory components will fit without modification
-Come fully assembled
-Sold individually

Cylinder Head Specifications

INTAKE:
Intake Runner Volume (cc): 252
Intake Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.160 in.

EXHAUST:
Runner Volume (cc): 78.8
Exhaust Valve Diameter (in): 1.600 in.
Exhaust Valves Included: Yes
Exhaust Runner: No
Port Shape: Round
Exhaust Port Location: Standard

COMBUSTION CHAMBER:
Combustion Chamber Volume (cc): 69.4
CNC-Machined Combustion Chamber: No

VALVE SPECS:
Intake Valve Angle: 12 Degrees (3 degrees rolled)
Exhaust Valve Angle: 12 Degrees (3 degrees rolled)
Valve Guides Included: Yes
Valve Guide Material: Manganese Bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 5-Angle
Valve Seat Material: Chrome Nickle
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Viton® Fluoroelastomer

SPRINGS:
Valve Springs Included: Yes
Maximum Valve Lift (in): .650 in.
Spring Pressure Open: 370 @ 1.150
Spring Pressure Closed: 142 @ 1.800
Outside Diameter of Outer Spring (in): 1.29 in.
Damper Spring Included: Yes
Number of Springs per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromemoly Steel
Locks Included: Yes
Lock Style: 7 Degree

ROCKER ARMS:
Rocker Arm Studs Included: No
Rocker Arms Included: N/A
Rocker Arm Nut Thread Size (in): 8 x 1.25
Rocker Arm Nuts Included: No

MISC:
Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Spark Plug Style: Standard
Cover Mounting Style: Standard
Steam Holes Drilled: No
Oiling Style: Through Pushrod
Machined for O-Ring: No
Heat Crossover: No
10mm Accessory Bolt Holes Machined On Ends of Heads

The post ATK 2CT13S1 LS3/L92 As Cast Cylinder Heads Assembled 255cc appeared first on ATK High Performance Engine.

Applications:

• 1991-1993 Chrysler New Yorker, Imperial
• 1994-2010 Chrysler Minivans
• 2004-2007 Chrysler Pacifica
• 2007-2011 Jeep Wrangler
• 2009-2010 Volkswagen Routan

The post ATK #B842310N Proprietary Chrysler 3.8L Crankshaft V6 1991-2010 appeared first on ATK High Performance Engine.