Hemituner Hellcat Based 426 HEMI Stroker Crate Engine

HEMITUNER 7.0L 426 HEMI Crate Engine

The 6.2L, 378 CID to 426 CID HEMI crate engines are completely forged, and fully capable of handling enormous amounts of horse power. We can set these engines up to withstand 1000+ HP & 1000+ torque. This HEMI power plant is designed to make the most of your Hellcat. No matter what your power goals Hemituner can help you achieve them. There are no core charges on our crate engines, but we are willing to take exchanges for credits.

Some Key Features Include:

• Forged Rotating Assembly
• Forged Mahle. Ross, or CP-Carrillo Pistons
• Forged Crankshaft
• Forged H-Beam Connecting Rods
• CNC ported Heads by Thitek
• Hand Built in the USA
• New OEM Gasket & Seals
• Brand New OEM Parts and Accessories

426 HEMI Hellcat Crate Engine Specs

The BGE Hellcat block provides an excellent platform for our 426 crate engines. All Blocks are inspected and Machined to specific tolerances learned over the last 15 years specializing in the HEMI market,

• Displacement: 426 CID (7.0L)
• Bore: 4.090
• Stroke: 4.050
•  Compression Ratio: 9.8 : 1

HEMI Rotating Assembly Components, Features, & Benefits:

The rotating assembly is the heart of every HEMI. Hemituner Performance is dedicated to providing only the best performance parts in our crate engines. This means only using high quality forged rotating assembly parts from the best manufacturers. The combination between high quality material and manufacturers that are dedicated to maintaining tight quality control result in a top of the line GEN III HEMI crate engine.

• Forged Crankshaft, Billet Optional
• Gas Ported 2618 Custom Piston     
• Duel Pin Oilers
• Contact Reduction Grooves
• Accumulator Grooves
• Forged Side Reliefs
• FEA Designed Forging
• ISO 9000 Certified
• X Style Forging
• Optional Piston Coatings
•  Low Drag Piston Rings
• Chromoly Wrist Pins w/Wire Locks
• ARP Main Studs
• High Performance Main and Rod Bearings
• Optional Coatings for Rod and Main Bearings

Creating the HEMI's Short Block:

• Machine Shop
• Verify Deck Surface
• Verify Bore Centerlines
• Hone Cylinders w/Honing Plate
• Install Billet Main Caps (Optional)
• Line Hone
• Supply and Install Plugs at Oil Squirters
• Clearance Block / Pistons (If Required)
• Balance Rotating Assembly
• Cut Crankshaft for Woodruff Key 

• Short Block Final Assembly
• Paint Block Black, HEMI-Orange, Or Demonic Red
• Install ARP Main Studs
• Install Crankshaft and Main Bearings, Maintain 0.0003 – 1” Tolerance @ bearings and 0.0005" Runout
• Cut and Fit Piston Rings
• Install Pistons and Connecting Rods; Maintain 0.0003 – 1” tolerance @ bearings and 0.0005” tolerance @ piston to cylinder wall.
• Install Rear Main Seal

Our HEMI Long Block Includes a Hemituner Performance Short Block Plus

• CNC Ported Heads
• ARP Head Studs
• Replacement Oil Pump
• .105 Wall Chromoly Pushrods
• 5 Layer Head Gaskets
• OEM Mopar Lifters & Yokes

Thitek CNC Ported HEMI Heads (Thitek Bear Heads Optional)

• CNC Port Heads
• Performance Valve Job (seats and valves shaped)
• PSI 1511 Springs
• Performance Valve Guide Preparation
• Hardened Steel Retainers
• Hardened Steel Locators
• Viton Valve Seals
• Capable of up to .650” Lift

Our HEMI Crate Engine Includes an Hemituner Performance Long Block Plus

• ATI 10% Overdrive Balancer 
• New Intake and Exhaust Gaskets
• Stock OEM Oil Pan (Moroso or Milodon are Available)
• NGK Spark Plugs
• OEM Accessories (Dip Stick, Valve Covers, etc.)