![Forged Nitrous Dome Top Pistons Small Block Chevy 400 [Bore 4.155 in./Stroke 3.750 in.]](https://www.jegs.com/images/mini_750/500/532/532-173586.jpg)
Forged Nitrous Dome Top Pistons Small Block Chevy 400 [Bore 4.155 in./Stroke 3.750 in.]
Specs
- Rod Length 6.000 in.
- Compression Height 1.250 in.
- Compression Ratio:
14.5:1 with 58 cc head
13.3:1 with 64 cc head
11.5:1 with 76 cc head
Engineered for the Win
JE high-performance pistons for domestic engines deliver championship-proven technology and race-bred precision to every build. Designed, machined, and inspected in the USA, each piston reflects JE’s legacy of innovation in material science, computer-aided design, and CNC manufacturing. From street performance to all-out competition, these pistons provide the strength, consistency, and thermal stability demanded by serious engine builders. Choose from configurations tailored to popular GM, Ford, and Mopar platforms, with compression ratios, coatings, and ring options engineered for maximum efficiency, reliability, and power.