Performance Parts and Racing Parts Campbell Enterprises

318 Stroker Kits Dodge Plymouth Chrysler Mopar 318 and 5.2 Magnum 390 Stroker Kit

K1 Technologies 318 Stroker Kit 318 5.2 Stroker Kit
Molnar Technologies Rods and Cranks
Eagle Cast Steel 318 Crankshafts Forged Stroker Crankshafts 5.2 318 Stroker Kit

Mopar 318 and 5.2 magnum engines are great, dependable engines that first appeared in 1957. They are not known as high performance engines as built by the factory. The good news is that a 318 390 stroker kit gives them a huge increase in performance.Our 5.2 Magnum / 318 stroker kits will improve the performance and durability of your 318 considerably. Depending on which stroke crank and final bore size you choose to use, you can build 318 stroker motors of 370, 390, 396 or even 402 cubic inches.

A 318 can do everything from power a street work truck to being an all out drag, oval track or road racing engine depending on how it is built. Many people tend to overlook the 318 as a high performance engine, which is a shame as it offers many benefits, it is light, compact and easy to come by and relatively inexpensive

If you are building a high performance or racing 318, but do not want to buy a complete stroker kit, we have the individual parts available on these pages of our site:

The 318 A, LA and 5.2 L Magnum series engines all use the same stroker kits since the bottom end rotating assembly of these engines are all the same. The pistons vary as needed to provide the desired compression ratio with the cylinder heads you will be using. We have a wide range of 318 stroker applications covered with our kits. Our 318 stroker kits are available in street / strip and full competition configurations. Shop and buy the best 318 stroker kits here. We offer technical assistance, great customer service, quick shipping and reasonable prices.

318 Rotating Assembly 318 Stroker Kit 5.2 Magnum Stroker Kit

PLEASE NOTE: We have a huge number of optional cranks, rods, and pistons available to assemble the 318 stroker kit that best meets your requirements. We are working to get all of the different options listed on our website but it will take some time to complete. In the mean time, please contact us for assistance and we will be happy to help you with the best kit to meet your exact requirements. Thank you for your patience and understanding.

For stock stroke 318 rotating assembly kits please click here: Mopar 318 Rotating Assembly Kits

If you are working on a poly head 318 more info is listed here: 318 Poly Stroker Kits Info

 

318 390 Stroker Kit Contents - What is included?

Our 318 Mopar stroker engine kits offer a great combination of performance, dependability and affordability. All of our kits are intended for use as an internal balance assembly. Each of these kits includes:

318 Street / Strip Stroker Engine Kits

  • Scat or Eagle cast steel crankshaft rated for up to 500 hp
  • Eagle I beam connecting rod set
  • KB Forged Pistons, dish or flat top
  • Moly piston ring set
  • Clevite P series main bearings
  • Clevite P series rod bearings

318 Competition Racing Stroker Motor Kits

  • K1 Technologies or Molnar Technologies 4340 forged crank
  • K1 Technologies or Molnar Technologies 4340 Billet H beam rods with ARP2000 bolts
  • Diamond or KB forged pistons
  • Plasma moly file fit piston ring set
  • Clevite H series main bearings
  • Clevite H series rod bearings

See the specification list for the exact parts included in any particular kit. We use only top quality performance and racing parts in our kits. If you have any questions about the parts included in a kit please do not hesitate to contact us for kit content confirmation.

Chrysler Dodge Plymouth Mopar 318 / 5.2 Magnum Stroker Kit Specifications & Pricing

Street / Strip 318 Stroker Kits

  • For street, towing and mild performance use
  • Cast steel Scat or Eagle stroker crankshaft rated for up to 500hp
  • Eagle I beam rods, 6.123 in. long, .984 pin size
  • KB Forged piston and ring set
  • Stock 318 bore size is 3.910 in.
  • Stock stroke is 3.310 in.
  • The crank and rods in these kits are rated for up to 500 hp, for higher output engines or racing we strongly suggest you choose one of our competition 318 stroker kits
  • Must be balanced before installation, intended for internal balance use
  • CID = stroker engine displacement size

 

  Compression ratio with chamber volume of  
CID Bore Size

Crankshaft Type & Stroke

Rod Length and Type Piston 60cc 64cc 68cc Kit #
390 3.940 .030 over cast steel 4.000 stroke 6.123 I-beam forged step dish -23cc 9.8 9.4 9.1

CES318C4IKR-30

$1689.00 $1469.43

Add To Cart
392 3.950 .040 over cast steel 4.000 stroke 6.123 I-beam forged step dish -23cc 9.8 9.4 9.1

CES318C4IKR-40

$1689.00 $1469.43

Add To Cart
396 3.970 .060 over cast steel 4.000 stroke 6.123 I-beam forged step dish -23cc 9.9 9.5 9.2

CES318C4IKR-60

$1689.00 $1469.43

Add To Cart
390 3.940 .030 over cast steel 4.000 stroke 6.123 I-beam flat top -4.7cc 12 11.4 11

CES318C4IKF-30

$1689.00 $1469.43

Add To Cart
392 3.950 .040 over cast steel 4.000 stroke 6.123 I-beam flat top -4.7cc 12 11.4 11

CES318C4IKF-40

$1689.00 $1469.43

Add To Cart
396 3.970 .060 over cast steel 4.000 stroke 6.123 I-beam flat top -4.7cc 12.1 11.5 11.1

CES318C4IKF-60

$1689.00 $1469.43

Add To Cart

 

Mopar Plymouth Dodge 318 & 5.2L Magnum Engine COMPETITION Stroker Kits

Premium 318 high performance and racing stroker kits. These kits feature forged cranks, forged pistons, billet rods with ARP 2000 bolts, moly rings and Clevite race bearings. If you are serious about getting maximum torque, horsepower and durability from your stroker 318 engine, then these kits include the parts you need.

  • For high performance and racing applications
  • K1 Technologies or Molnar Technologies 4340 Forged steel Crankshaft
  • K1 Technologies or Molnar Technologies 4340 Billet H beam rods with ARP2000 bolts, .984 pin size
  • KB Forged piston and ring set
  • Stock 318 bore size is 3.910 in.
  • Stock stroke is 3.310 in.
  • Must be balanced before installation, intended for internal balance use
  • CID = stroker engine displacement size

 

  Compression ratio with chamber volume of  
CID Bore Size

Crankshaft Type & Stroke

Rod Length and Type Piston 60cc 64cc 68cc Kit #
390 3.940 .030 over 4340 forged steel 4.000 stroke 6.123 H-Beam forged step dish -23cc 9.8 9.4 9.1

CES318F4HKR-30

$2289.00 $1991.43

Add To Cart
392 3.950 .040 over 4340 forged steel 4.000 stroke 6.123 H-Beam forged step dish -23cc 9.8 9.4 9.1

CES318F4HKR-40

$2289.00 $1991.43

Add To Cart
396 3.970 .060 over 4340 forged steel 4.000 stroke 6.123 H-Beam forged step dish -23cc 9.9 9.5 9.2

CES318F4HKR-60

$2289.00 $1991.43

Add To Cart
390 3.940 .030 over 4340 forged steel 4.000 stroke 6.123 H-Beam flat top -4.7cc 12 11.4 11

CES318F4HKF-30

$2289.00 $1991.43

Add To Cart
392 3.950 .040 over 4340 forged steel 4.000 stroke 6.123 H-Beam flat top -4.7cc 12 11.4 11

CES318F4HKF-40

$2289.00 $1991.43

Add To Cart
396 3.970 .060 over 4340 forged steel 4.000 stroke 6.123 H-Beam flat top -4.7cc 12.1 11.5 11.1

CES318F4HKF-60

$2289.00 $1991.43

Add To Cart

 

Mopar Plymouth Dodge 318 & 5.2L Magnum Engine ULTIMATE COMPETITION Stroker Kit Rotating Assemblies

Ultimate 318 racing stroker kits include the same great parts as our competition kits listed above. The difference is that the ultimate kits include Diamond Pistons brand forged racing pistons and plasma moly file fit piston ring sets.

If you are serious about getting the ultimate performance from your 318 stroker motor, then these kits include the components to help you win more races.

  • For serious performance and racing applications
  • K1 Technologies Molnar Technologies 4340 Forged steel Crankshaft
  • K1 Technologies Molnar Technologies 4340 Billet H beam rods with ARP2000 bolts, .984 pin size
  • Diamond Pistons brand Forged Racing Pistons
  • Plasma moly file fit piston rings
  • Stock 318 bore size is 3.910 in.
  • Stock stroke is 3.310 in.
  • Must be balanced before installation, intended for internal balance use
  • CID = stroker engine displacement size

 

  Compression ratio with chamber volume of  
CID Bore Size

Crankshaft Type & Stroke

Rod Length and Type Piston 60cc 64cc 68cc Kit #
390 3.940 .030 over 4340 forged steel 4.000 stroke 6.123 H-Beam forged dish -16.7cc 10 9.5 9.2

CES318F4HDR-30

$2580.00 $2244.60

Add To Cart
390 3.940 .030 over 4340 forged steel 4.000 stroke 6.123 H-Beam flat top -6.8cc 11.1 10.7 10.2

CES318F4HDF-30

$2535.00 $2205.45

Add To Cart

 

If you do not see the 318 Stroker kit with the specs you need:

We offer a large variety of 318 stroker rotating assemblies, Dodge, Plymouth, Mopar 318 stroker kits, and Dodge 5.2L Magnum stroker kits. We also offer custom piston options with these stroker kits. If you do not see a kit that includes the items you want, or you need a different bore size or compression piston, please contact us and we will be happy to help you with a custom configured 318 stroker kit.

318 Mopar Rotating Assemblies Stock Stroke Kits for 5.2 Magnum / 318

If you are rebuilding a 318 Mopar and want a stronger rotating assembly, but do not want to go to a stroker set up, we also have stock stroke 318 rotating assemblies available. Contact us for information.

Mopar 318 Poly Rotating assemblies and 318 Poly stroker kits

If you are working on an older 318 poly engine, we have stroker kits available for your also. The 318 Poly head engine requires special pistons to work with the original poly spherical combustion chamber heads. Please contact us for assistance with 318 Poly rotating assemblies, 318 Poly stroker kits, pistons, crankshafts, rods or bearings.

 

We offer many other parts to go along with the 318 and 5.2 Magnum rotating assemblies and stroker kits listed here. We have far more available than what is listed on our website so if you need an engine or automatic transmission assembly, torque converter or related part that you do not see on our site, please contact us and we will be happy to help.

High Performance Mopar Small Block Engine Building Books

 

Links to stroker kit brand catalog index pages on our website:

K1 Technologies Cranks and Rods | Eagle Specialty Products Index

Back to Top 318 Stroker Kit

 

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