Speed-Pro Forged Pistons

4.51 out of 5 stars 72 Customer Reviews

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.

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Speed-Pro Forged Pistons L2256F60

Pistons, Forged, Flat, 4.060 in. Bore, Chevy, GMC, Set of 8

Part Number: SLP-L2256F60

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Speed-Pro Forged Pistons L2256F30

Pistons, Forged, Flat, 4.030 in. Bore, Chevy, GMC, Set of 8

Part Number: SLP-L2256F30

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Speed-Pro Forged Pistons for 1970-1971 G35/G3500 VAN - L2304AF30

Pistons, 4.030 in. Bore, Dome with Trough, 1.560 in. CH, w/0.927 in. Wrist Pins, DurOshield Skirt, for 3.480 in. Stroke/5.700 in. Rod, Chevy, Set of 8

Part Number: SLP-L2304AF30

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Estimated Ship Date: Feb 23, 2026 if ordered today