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Vehicle Info NeededSRPPART NUMBER: 867-139506
Forged Flat Top Piston Big Block Chevy 489ci with 4.280" Bore
$73499
1 left in stock
Ships on Nov 02, 2026
Lowest Price GuaranteeBig Block Chevy489ci
Forged Flat Top Piston Big Block Chevy 489ci Bore: 4.280" Stroke: 4.250" Weight: 568 Grams Rod Length: 6.135" Head Volume: -3.0cc 1/pkg
< li> Perfect for street/strip applications< li> Forced pin oiling for improved pin lubrication< li> Made 100% in the USA
SRP 867-139506 Features:
Born from the rich racing experience of JE Pistons, the Sportsman Racing Products (SRP) piston line proudly bridges the gap between high-quality forged piston performance and affordability. Forged from strong, 4032 aluminum alloy material, SRP pistons are designed and manufactured to reduce machining costs without sacrificing strength or performance characteristics. These pistons are the perfect option for someone building a mild to moderate performance engine on a sportsman budget. As with all JE Pistons products, SRP pistons are made 100% in the USA.- < ul>< li> Forged in the USA using 4032 aluminum, yielding tensile strength and minimal thermal expansion < li> Dedicated forging helps optimize strength and weight throughout the piston design
- Ideal for street/strip and marine applications. Symmetrical valve reliefs for universal installation. High silicon alloy for tighter piston to wall clearance. Lower ring lands and thicker crown for increased durability. Great for light duty nitrous or forced induction. .990'' x 2.930'' x .150'' straight wall carbon steel wristpin (150g) included. 1/16'' x 1/16'' x 3/16'' ring grooves.
Part TypePiston
Product LineSRP Big Block Chevy Flat Top Forged Pistons
BrandSRP
Package Height5.8
Package Width11.3
Package Length25.2
Weight16.6 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number139506
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
