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Vehicle Info NeededSEALED POWERPART NUMBER: 844-LW2505NF30
350ci Performance Pistons, .030" Overbore Piston Dia.: 4.030"
$75199
Ships on 09/23/2026
Lowest Price GuaranteeSmall Block Chevy Lightweight Series
- 350ci Performance Pistons, .030'' Overbore
- Piston Dia.: 4.030''
- Flat Top w/2 relief valves
- Press or Floating Pin
- Comp Ratio: 10.20:1 w/58cc Head,8.49:1 w/76cc Head
- Ring Grooves: 1.5mm, 1.5mm, 3.0mm
- 521 Grams
- 5.7" Rod
- Set of 8
- Speed-Pro developed Powerforged Pistons, and set the pace in powerforged technology. The high silicon VMS-75 alloy is found exclusively in pistons "powerforged" by Speed-Pro. Up to 3,000 tons of force forges aluminum slugs into the basic piston form, which creates a grain flow pattern in the structure providing excellent strength, ductility, and heat dissipation.
Note: All compression ratios are approximate. They're figured with a gasket thickness representative of those commonly used.
Part TypePiston
Product LineSpeed-Pro Powerforged Small Block Chevy Pistons
BrandSEALED POWER
Package Height3.0
Package Width5.1
Package Length6.0
Weight1.33 PG
Part CategoryPerformance Parts
QuantitySet of 8
Vendor Part NumberBSELW2505NF30
Package Qty1
Package TypeEA
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