Performance Parts and Racing Parts Campbell Enterprises

340 Crank K1 Technologies Forged Chrysler Dodge Plymouth Mopar 340 394 416 Stroker Crank

K1 Technologies Dodge 340 Stroker Crank  Logo Image

K1 Technologies produces superior quality Plymouth Dodge Chrysler Dodge Mopar 340 stroker cranks. We are proud to represent K1 Tech and sell all of  their premium K1 performance engine parts for the Mopar engines. K1 Tech is producing precision machined 4340 forged 340 crank assemblies that are machined to very close tolerances and are far stronger than a stock 340 crankshaft. K1 produces these excellent 340 394 416 stroker cranks in 3 different versions.

4340 Forged Steel 394 416 Stroker 340 Crank

K1 Technologies Chrysler Dodge Plymouth Mopar Forged 340 394 416 Stroker Crank

More K1 Technologies product info here: K1 Technologies Crankshafts and K1 Rods


K1 Technologies 4340 Forged Steel 340 Crankshaft Specifications

Depending on which stroke crank and final bore size you choose to use, you can build stroker motors using these cranks of 394 cubic inches to over 422 cubic inches.

Buy the best K1 Technologies small block Mopar 340 crank here. We provide dedicated customer service, technical assistance, reasonable prices and have been specializing in high performance and racing Mopars since the 1970s.

Dodge 340 Crank by K1 Technologies Forged 340 Stroker Crank

All of the K1 Tech 340 Stroker Crank part numbers listed below have the following common features and dimensions:

  • 4340 forged steel
  • Core hardened
  • Nitrided
  • Mag-Particle Inspected
  • Straight oil holes for best rod journal lubrication
  • Stock 340 main journal size of 2.500 in.
  • 6 bolt Chrysler rear flange
  • The 3.790 stroke crank with a .030 oversize bore = 394 cubic inches
  • The 4.000 stroke crank with a .030 oversize bore = 416 cubic inches
  • The 4.125 stroke crank with a .030 oversize bore = 430 cubic inches
  • Wt = weight in pounds
  • We recommend using the matching K1 4340 Billet H beam 340 rods with these cranks
Description Stroke Rod Pin Wt Part #

340 Chrysler 4340 Forged Stroker Crank 3.790 Stroke 2.100 rod journal

NOTE: This crankshaft was discontinued by K1 and we have superseded it to the Molnar Technologies brand part number with the same specs. More info is available here: 340 3.790 stroke crank

3.790 2.100 small block Chevy size 60

mol 340-3790EB6F

$991.58 $856.43

Add To Cart

SB Chrysler 340 4340 Forged Stroker Crank 4.000 Stroke 2.100 rod journal 4.000 2.100 small block Chevy size 63

k1 340-4000EB6F

$786.00 $738.84

Add To Cart

SB Chrysler 340 4340 Forged Stroker Crank 4.000 Stroke 2.125 rod journal 4.000 2.125 stock small block Mopar size 63

k1 340-4000EF6F

$786.00 $738.84

Add To Cart

SB Chrysler 340 4340 Forged Steel Stroker Crank 4.125 Stroke 2.000 rod journal 4.125 2.000 small block Chevy small journal size 58

k1 340-4125EA6F

This crank is out of stock and discontinued by K1.

Replaced with Molnar Technologies Crank 340-4125EA6F

$991.58 $856.43

Add To Cart


K1 Technologies Dodge 340 crankshaft assemblies are 4340 forged cranks for superior strength and durability. These 340 stroker crank assemblies are ideal for any small block performance muscle car rebuild, street car, hot rod, truck, nostalgia dragster, supercharged, 340 turbo and nitrous engines, all out racing engines, marine, tractor pull, mud bog engines and more.

If you are building a hard running Mopar 340 engine, why risk using a lesser quality crank in your engine? We offer discounted prices on premium top quality, high performance 340 K1 stroker crankshafts, for not much more than lower quality cranks which are not machined to the same precise dimensions that the K1 cranks are.

340 Stroker Pistons

Ross 340 Mopar Piston Image

We offer a large variety of pistons to work with these 340 cranks including Ross Stroker Pistons, Wiseco forged pistons, supercharged and turbocharged pistons, nitrous pistons, stroker pistons, custom pistons and more. We also sell rods, bearings, gaskets, valvetrain parts and more.


K1 Technologies small block Mopar 340 stroker cranks on this page are available to fit the following engine blocks:

  • Chrysler 340
  • Dodge 340
  • Plymouth 340
  • Mopar 340
  • Crate engines and aftermarket blocks based on the stock 340 block specs

If you can not find the engine parts you need, or if you have questions, please e-mail us , call, or use our online chat system and let us know what you need, and we will be happy to help.




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