Speed Pro SPH624CP040 +.040 Dome Top Hypereutectic Pistons Sph624Cp 040 Chev SB 3.750 Stroke

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Speed Pro

SPH624CP040
$446.70 AUD
$446.70 AUD
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Speed Pro SPH624CP040 +.040 Dome Top Hypereutectic Pistons Sph624Cp 040 Chev SB 3.750 Stroke

Item Description

SPEED PRO +.040 DOME TOP HYPEREUTECTIC PISTONS SPH624CP 040 SUIT CHEV SB V8 3.750" STROKE

These ruggedly durable pistons are made with exclusive high strength FM425 alloy, and enhanced with 16.5% silicon for excellent tensile strength and scuff resistance. This advanced metallurgy permits tighter bore clearances, which help minimise noise on cold engine start-up. These pistons are the ideal choice for street performance applications and late-model replacement.

More Sealed Power hypereutectics benefits:

  • Higher strength than cast or forged at operating temperature
  • Finely dispersed silicon particles provide a highly resistant wear surface and reduces scuffing
  • Lower material growth allows pistons to be fit tighter, improving cylinder sealing for less blow-by and more power
  • High silicon content allows elimination of groove inserts in certain applications
  • Designed to retain standard ring gaps in the top groove


Application:Chevy small block Gen I 350C.I.D. V8.
CID: 385
Bore (in): 4.040 in.
Bore (mm): 102.616mm
Stroke (in): 3.750
Rod Length (in): 5.700
Piston Style: Dome, with two valve reliefs
Piston Material: Hypereutectic aluminum
Compression Distance (in): 1.425 in.
Dome Height (in): 0.100 in.
Piston Head Volume (cc): +3.50cc
Wrist Pin Style: Press-fit or floating
Pin Diameter (in): 0.928 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.

Manufacturer Information

  • Manufacturer: Speed Pro
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