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Speed Pro ZL2403NF - Speed-Pro Forged Pistons

  • Piston, Forged, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring, Small Block Chevy, Each
  • Application Specific
 
BrandSpeed Pro
Manufacturer's Part NumberZL2403NF
Part TypePistons
Product LineSpeed-Pro Forged Pistons
Summit Racing Part NumberTRW-L2403NF
 
Bore (in)4.000 in.
Bore (mm)101.600mm
Piston StyleDish, with four valve reliefs
Piston MaterialForged aluminum
Compression Distance (in)1.562 in.
Wrist Pin StylePress-fit
Pin Diameter (in)0.927 in.
Piston Ring Thickness5/64 in. x 5/64 in. x 3/16 in.
QuantitySold individually.
NotesRecessed piston head design is 0.068 inch deep.
 

Forged for solid, reliable strength.

These Speed-Pro forged pistons are made from extruded VMS-75 aluminum alloy that's forged under 3,000 tons of pressure to "near-net" shape. After that, they're machined to their final configuration. These pistons offer excellent strength and durability, and are capable of taking the punishment that's dished out on the street and in competition. They're available for a wide variety of applications, including OE replacements and all-out racing engines.