Speed Pro SPH345DCP-040 Sph345Dcp 040 Chev SB 350 V8 Flat Top Hypereutectic Pistons +040

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Speed Pro

SPH345DCP-040
$427.50 AUD
$427.50 AUD
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Speed Pro SPH345DCP-040 Sph345Dcp 040 Chev SB 350 V8 Flat Top Hypereutectic Pistons +040

Item Description

These Speed-Pro Digital Diamond Profile (DDP) hypereutectic pistons feature a new digital actuated diamond turning process that produces precision skirt profiles.

This new Digital Diamond Profile (DDP) technology creates a unique barrel profile of the pistons, promoting an oil wedge between the piston skirt and the cylinder wall. They feature a newly designed ring groove geometry using Thermal Arching Compensation (TAC) that machines the piston ring grooves with an uptilt to offset thermal arching distortion. This squares the ring face up to the cylinder wall for increased power and decreased oil consumption. The Speed-Pro Digital Diamond Profile hypereutectic pistons feature the next generation of Duroshield skirt coating, reducing friction across the entire rpm range and increasing wear resistance for longer life and superior noise and vibration reduction. They also use precision-machined piston pin bores that allow for either fixed or floating wrist pins. The pistons come weight-matched to a 4 gram (+/-2 grams) maximum variation within every engine set.



  • Bore (mm): 102.616mm
  • Rod Length (in): 5.700 in.
  • Stroke (in): 3.480 in.
  • Application: Chevy small block Gen I 350 C.I.D. V8
  • Bore (in): 4.040 in.
  • Piston Style: Flat top, with four valve reliefs
  • Piston Material: Hypereutectic aluminum
  • Compression Distance (in): 1.548 in.
  • Piston Head Volume (cc): -5.0cc
  • Wrist Pin Style: Press-fit or floating
  • Pin Diameter (in): 0.927 in.
  • Piston Ring Thickness: 5/64 in. x 5/64 in. x 3/16 in.
  • Quantity: Sold as a set of 8.
  • Notes: DurOshield® coated piston skirt. These pistons can be free floated but locks must be purchased separately.

Manufacturer Information

  • Manufacturer: Speed Pro
  • Manufacturer Part Number:
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