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Small Block Mopar Pistons 318 340 360 390 408 Mopar Diamond Racing Pistons

Small Block Mopar Diamond Racing Pistons Logo

 

Diamond pistons are available for a wide range of small block Mopar engines, bore sizes, and strokes. Diamond Racing Mopar pistons are all high strength forged pistons. They offer high strength, but at the same time modern technology allows these pistons to be light weight improving engine performance further.

These pistons are far superior to any cast or hypereutectic type piston. Small block Mopar Diamond piston sets offer reduced friction, better ring sealing, faster acceleration, more horsepower and torque in your high performance street, strip or race car engine. We are pleased to offer the entire line of Diamond Pistons to our customers at great discount pricing.

 

 

 

Plymouth Chrysler Mopar Dodge 318, 340, 360, 5.2 Magnum, 5.9 Magnum Diamond Pistons

The tables below include the stock crankshaft stroke that each Diamond piston set is designed to work with. The stock strokes for these Mopar small block engines are as

  • 318 3.310"
  • 340 3.310"
  • 360 3.580"

If you are using a stock stroke crankshaft in your engine project, you will need to select pistons to work with the stock stroke. If you are building a stroker engine using a 4" stroke crankshaft, then you will want to choose the matching 4" stroker pistons. We also have the 4" stroker cranks available as well as rotating assemblies or stroker kits.

If you have any questions about these Diamond small block Mopar pistons please contact us and we will be happy to help.

Diamond Mopar Small Block Piston Set Features

Diamond small block Mopar racing pistons street, strip flat top piston sets feature the following:

  • Designed to fit most Mopar OEM open and closed chamber heads
  • Will work with aftermarket Edelbrock and Indy heads
  • May be used with small nitrous kits
  • Standard 1/16 - 1/16 - 3/16 ring package
  • Premium 8620 wrist pins and pin locks included
  • Valve relief cut for maximum valve diameters of 2.070" intake and 1.625" exhaust

Small Block Mopar Diamond Piston Flat Top

Small Block Mopar 318 5.2L Magnum Flat Top Stroker Pistons

These 318 390 stroker pistons are for use with a 4" stroker crank, they are not for use with a stock stroke 318 crank.

318 390 Stroker Piston Set 5.2L Magnum
Diamond Forged FT Mopar Pistons

  Compression Ratio
Bore Stroke Rod
Length
C.D. Wt Pin CCs 60cc 65cc 70cc Part #
3.940 4.000 stroker 6.123 1.457   .984x2.750 -6.8 10.9 10.3 9.8 50001

Small Block Mopar 340 416 Pistons- Flat Top

340 Piston Sets Diamond Forged Flat Top Mopar Pistons

  Compression Ratio
Bore Stroke Rod
Length
C.D. Wt Pin CCs 60cc 65cc 70cc Part #
4.070 3.310 stock 6.123 1.802 566 .984x2.750 -6.8 10.4 9.8 9.3 51001
4.040 4.000 stroker 6.123 1.457 485 .984x2.750 -6.8 11.3 10.7 10.3 51005
4.070 4.000 stroker 6.123 1.457 512 .984x2.750 -6.8 12.4 11.7 11.0 51007
4.070 4.000 stroker 6.123 1.457 498 .927x2.750 -6.8 12.4 11.7 11.0 51008
4.080 4.000 stroker 6.123 1.457 500 .927x2.750 -6.8 11.6 10.9 10.5 51009
4.080 4.000 stroker 6.123 1.457 514 .984x2.750 -6.8 11.6 10.9 10.5 51010
4.100 4.000 stroker 6.123 1.457 520 .984x2.750 -6.8 11.7 11.0 10.6 51013

Small Block Mopar 360 & 5.9 Magnum 408 Pistons Flat Top

360 Piston Sets Diamond Forged Flat Top Mopar Pistons

  Compression Ratio
Bore Stroke Rod
Length
C.D. Wt Pin CCs 60cc 65cc 70cc Part #
4.030 3.580 stock 6.123 1.667 532 .984x2.750 -6.8 11.1 10.5 9.9 51021
4.040 3.580 stock 6.123 1.667 535 .984x2.750 -6.8 10.3 9.7 9.2 51022
4.060 3.580 stock 6.123 1.667 541 .984x2.750 -6.8 10.5 10.0 9.5 51023
4.020 4.000 stroker 6.123 1.457 493 .984x2.750 -6.8 11.3 10.7 10.2 51025
4.030 4.000 stroker 6.123 1.457 495 .984x2.750 -6.8 12.2 11.5 10.8 51026
4.030 4.000 stroker 6.123 1.457 502 .927x2.750 -6.8 12.2 11.5 10.8 51027
4.060 4.000 stroker 6.123 1.457 510 .984x2.750 -6.8 12.3 11.0 10.8 51028

Diamond Pistons Small Block Mopar Dish Piston

Diamond small block Mopar street, strip dish top pistons feature the following:

  • Designed to fit most Mopar OEM open and closed chamber heads
  • Will work with aftermarket Edelbrock and Indy heads
  • Designed for forced induction applications, turbo charged or super charged
  • Standard 1/16 - 1/16 - 3/16 ring package
  • Premium 8620 wrist pins included and pin locks included
  • Valve relief cut for maximum valve diameters of 2.070" intake and 1.625" exhaust

Small Block Mopar 318 5.2L Magnum Stroker Pistons Dish Top

These 318 pistons are for use with a 4" stroker crank, they are not for use with a stock stroke 318 crank.

318 Piston Set 5.2L Magnum
Diamond Forged Dish Mopar Pistons

  Compression Ratio
Bore Stroke Rod
Length
C.D. Wt Pin CCs 60cc 65cc 70cc Part #
3.940 4.000 stroker 6.123 1.457   .984x2.750 -16.7 10.0 9.5 9.0

Small Block Mopar 340 416 Stroker Pistons Dish Top

340 Piston Sets Diamond Forged Dish Top Mopar Pistons

  Compression Ratio
Bore Stroke Rod
Length
C.D. Wt Pin CCs 60cc 65cc 70cc Part #
4.070 4.000 stroker 6.123 1.457 525 .984x2.750 -21.5 10.6 10.1 9.6 51409
4.070 4.000 stroker 6.123 1.457 528 .927x2.750 -21.5 10.6 10.1 9.6 51410
4.070 4.000 stroker 6.123 1.457 516 .984x2.750 -9.3 11.7 11.1 10.5 51411
4.080 4.000 stroker 6.123 1.457 528 .984x2.750 -21.5 10.0 9.5 9.1 51412
4.080 4.000 stroker 6.123 1.457 532 .927x2.750 -21.5 10.0 9.5 9.1 51413
4.100 4.000 stroker 6.123 1.457 540 .984x2.750 -21.5 10.1 9.6 9.2 51416

Small Block Mopar 360 & 5.9L Magnum Pistons Dish Top

360 Piston Sets
Diamond Forged Dish Top Mopar 5.9 Pistons

  Compression Ratio
Bore Stroke Rod
Length
C.D. Wt Pin CCs 60cc 65cc 70cc Part #
4.005 3.580 stock 6.123 1.667 532 .984x2.750 -9.0 10.6 10.1 9.6 51400
4.020 3.580 stock 6.123 1.667 540 .984x2.750 -9.0 10.2 9.6 9.2 51420
4.005 4.000 stroker 6.123 1.457 498 .984x2.750 -19.0 10.6 10.1 9.6 51401
4.005 4.000 stroker 6.123 1.457 500 .927x2.750 -19.0 10.6 10.1 9.6 51402
4.020 4.000 stroker 6.123 1.457 497 .984x2.750 -20.0 10.0 9.5 9.1 51403
4.020 4.000 stroker 6.123 1.457 505 .927x2.750 -20.0 10.0 9.5 9.1 51404
4.030 4.000 stroker 6.123 1.457 502 .984x2.750 -20.0 10.6 10.1 9.6 51405
4.030 4.000 stroker 6.123 1.457 510 .927x2.750 -20.0 10.6 10.1 9.6 51406
4.040 4.000 stroker 6.123 1.457 505 .984x2.750 -20.0 10.0 9.5 9.1 51407
4.060 4.000 stroker 6.123 1.457 515 .984x2.750 -21.5 10.6 10.1 9.6 51408

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