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Diamond Mopar 426 Hemi Pistons and Stroker Hemi Piston Sets

Hemi pistons from Diamond Racing Pistons are available in several bore sizes, and strokes. Diamond Racing Mopar Hemi 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 Hemi pistons are far superior to any cast or hypereutectic type piston. 426 Hemi Mopar Diamond piston sets offer reduced friction, better ring sealing, greater durability, faster acceleration, more horsepower and torque in your high performance street, strip or race car engine. Diamond forged pistons are great for Hemi muscle car restoration engines also. We are pleased to offer the entire line of Diamond Pistons to our customers at great discount pricing.

Diamond Racing Hemi Pistons Logo

The table below includes the crankshaft stroke that each Diamond piston set is designed to work with. The stock stroke for the Mopar 426 Hemi is 3.750". We also have the Diamond Hemi pistons for 4.150" stroker crank Hemi engines. In addition, we have Hemi big bore pistons for use in Hemi blocks with a 4.500 bore size, in both stock stroke and stroker. If you need a Hemi piston set with different specs, please feel free to e-mail us and we will be happy to provide a quote for custom Hemi pistons, built to your exact requirements.

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 4.150" stroke crankshaft, then you will want to choose the matching 4.150" stroker pistons. We also have the 4.150" stroker cranks available as well as rotating assemblies or stroker kits.

If you have any questions about these Diamond Mopar pistons, please e-mail us and we will be happy to help.

Diamond 426 Hemi Piston

Diamond 426 Hemi Mopar Piston Set Features

All Diamond Racing pistons for Dodge, Plymouth, Mopar 426 Hemi piston sets feature the following:

Available in Street Hemi and Race Hemi type compression ratios
May be used with small nitrous kits
Compression ratios figured for .020" deck height at 10.720"
Piston sets use Standard 1/16 - 1/16 - 3/16 ring package (not included)
Premium 8620 wrist pins and pin locks included
Forged and fully machined
Pin size is 1.031" x 2.930"

Big Block Mopar Hemi 426 and Stroker Hemi Piston Sets

The ring set part numbers listed below are Diamond Plasma Moly file fit sets. If you want a different ring set please e-mail us and we will be happy to help.

Click on the part number in the table below for pricing or to order using our secure online shopping cart system. The Hemi piston ring sets listed below are Diamond Plasma moly file fit sets.

              Compression Ratio  
Hemi
Piston
set
Part #
Bore Stroke Rod
Length
C.D. Weight CCs 168cc 173cc Hemi
Piston
Ring Set
Part #
52500 4.250 3.750 6.860 1.965   85.0 9.5 9.2 09024250
52502 4.280 3.750 6.860 1.965 824 85.0 9.5 9.2 09024280
52505 4.310 3.750 6.860 1.965   85.0 9.7 9.3 09024310
52520 4.250 4.150 6.860 1.765   75.0 9.6 9.3 09024250
52522 4.280 4.150 6.860 1.765 775 75.0 9.6 9.3 09024280
52525 4.310 4.150 6.860 1.765   75.0 9.8 9.5 09024310
52550 4.280 3.750 6.860 1.965   112 12.6 12.0 09024280
52552 4.310 3.750 6.860 1.965   112 12.6 12.0 09024310
52540 4.280 4.150 6.860 1.765   103 12.6 12.1 09024280
52542 4.310 4.150 6.860 1.765   103 12.7 12.1 09024310
52560 4.500 3.750 6.860 1.965   86 10.5 10.0 09034500
52565 4.500 4.150 6.860 1.765   74 10.4 10.0 09034500

Links to related pages on our site:

426 Hemi Connecting Rods K1 Technologies
Diamond Racing Pistons Index
Pistons Main Index
Connecting Rods
Custom Forged Pistons
Mopar Hemi Crankshafts Hemi Stroker Cranks

Last Updated on 05/06/06