Crankshafts, Forged & Billet for LS, Hemi, Coyote, SBC, 2JZ and RB

What This Crankshafts Collection Covers

The crankshaft sets stroke, journal dimensions, counterweight layout and balance requirements for the entire rotating assembly. This collection includes crankshafts for V8, inline four and import six cylinder engine combinations where material, stroke and balancing must match the block, rods, pistons, damper and flywheel.

Forged and Billet Materials

Forged 4340 cranks offer high strength for boosted and high output engines. Billet crankshafts provide precise custom geometry for demanding race combinations where every dimension is planned around the build.

Stroke and Displacement

A stroker crank changes piston travel and can increase displacement and torque. Confirm block clearance, rod length, piston compression height and cylinder head or camshaft clearance before selecting a longer stroke.

Balancing and Reluctor Details

Internal and external balance combinations use different counterweight strategies. Modern applications can also require a specific reluctor wheel, flange, snout and pilot configuration, so verify every related part number.

Rotating Assembly Planning

A crankshaft must work with the rods, pistons, bearings, fasteners, damper and flywheel. Professional measurement and dynamic balancing are recommended for every serious engine build, especially after a stroke change.

Top Crankshafts Brands

• Callies, premium racing crankshafts and rotating assemblies
• Eagle, forged and cast crankshafts for performance V8 builds
• Scat, stroker crankshafts and rotating assembly parts
• Manley Performance, forged and billet engine components
• Brian Crower, import performance crankshafts
• K1 Technologies, performance rotating assembly components
• Lunati, street and race engine parts
• Crower, racing engine components
• Molnar Technologies, performance connecting rods
• Wiseco, forged pistons and engine components
• CP Carrillo, premium forged pistons and rods
• JE Pistons, forged piston solutions
• Mahle, engine internals and bearings
• ATI, harmonic dampers and rotating assembly support
• ARP, high strength engine fasteners

How to Choose the Correct Crankshafts Part

• Confirm the exact engine family, block and model year
• Match stroke to the intended displacement and piston design
• Verify main journal and rod journal diameters
• Choose forged or billet material for the power and RPM target
• Confirm internal or external balance requirements
• Match reluctor wheel, flange and snout details where applicable
• Plan rod length and piston compression height with a stroker crank
• Check block, rod and piston clearance during mockup
• Use correct bearings and measure oil clearance professionally
• Dynamically balance the complete rotating assembly before final assembly

Common Questions

What is the difference between forged and billet crankshafts?

Forged cranks are shaped from a forged steel blank while billet cranks are machined from solid material. Both are used in high performance builds when correctly specified.

Do I need to balance an engine after a crankshaft change?

Yes. A professional dynamic balance of the crankshaft, rods, pistons, damper and flywheel is strongly recommended.

What is a stroker crankshaft?

A stroker crank has a longer or different stroke that changes piston travel and can increase engine displacement.

Can I install a stroker crank with stock pistons?

Usually not without confirming compression height, valve clearance and deck clearance. Stroker combinations are planned as a matched assembly.

What is internal balance?

An internally balanced engine uses crankshaft counterweights to balance the assembly without relying on external imbalance at the damper or flywheel.

Why do reluctor wheels matter?

Electronic engine management may depend on the correct tooth count and sensor relationship. Match the reluctor specification to the engine control system.

How do I choose crankshaft stroke?

Choose stroke based on the block, desired displacement, rods, pistons, RPM target and clearance requirements of the full combination.

What other parts should be replaced during a crank build?

Inspect or replace bearings, fasteners, seals, damper hardware and related rotating assembly parts as the build plan requires.

Can a forged crank support boost or nitrous?

A correctly selected forged crank is commonly used for boosted and nitrous engines, but every part of the build must support the power goal.

Should a machine shop check a new crankshaft?

Yes. A qualified engine machine shop should measure journals, check clearances and balance the complete assembly before final assembly.

Why Buy Crankshafts from Black Ops Auto Works

Black Ops Auto Works stocks 32 Crankshafts SKUs with real fitment data, competitive pricing and support from staff who build these vehicles themselves. Products are filterable by year, make, model, trim, engine and drivetrain to confirm the correct application before ordering.

For focused shopping, browse our Pistons, Forged Piston Sets for 4 Cylinder, Forged Piston Sets for 6 Cylinder, Forged Piston Sets for 8 Cylinder, Connecting Rods and Push Rods, Connecting Rods for 6 Cylinder, Connecting Rods for 8 Cylinder, Rod Bolt Kits.