Easy — 1–2 hours
Description
Featuring a proprietary Forged Side Relief (FSR) design, these pistons minimize friction and power loss. They are compatible with forced induction, nitrous, and angle milled heads, and their valve reliefs accommodate oversized valves and long duration cams. This kit includes the necessary wrist pins and double spiral locks.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | JE Pistons |
| Part Number | J001 258242S |
Videos
Introducing the Strongest Pistons in Powersports | JE Ultra Series
JE Pistons Asymmetrical Design Overview
Piston Coatings 101: Which is the Right One for You?
Designed for Big Power: 24° Big Block Chevy Forged Pistons from JE
Which Forged Pistons Are Right For Your Build? | 🏁 Fast Facts
JE Ultra Series: Feature-Rich, Power-Ready Pistons off the Shelf
Forged vs Cast Piston Strength!
A Better Way to Install Rods on Pistons
2618 or 4032? Tips for Choosing the Best Piston Alloy for Your Performance Engine from RaceTec
Stock vs race pistons: Which is better?
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy