Sph534Np 020 Chev SB 305 V8 +.020 Flat Top Hypereutectic Pistons
Product Information
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.
Application: Chevy small block Gen I 305 C.I.D. V8.
- Bore (in): 3.756 in.
- Bore (mm): 95.402mm
- Piston Style: Flat top, with four valve reliefs
- Piston Material: Cast aluminum
- Compression Distance (in): 1.540 in.
- Wrist Pin Style: Press-fit
- 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.

Product Information
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.
Application: Chevy small block Gen I 305 C.I.D. V8.
- Bore (in): 3.756 in.
- Bore (mm): 95.402mm
- Piston Style: Flat top, with four valve reliefs
- Piston Material: Cast aluminum
- Compression Distance (in): 1.540 in.
- Wrist Pin Style: Press-fit
- 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.