Expected Lead Time: 1-2 Weeks
CJM-ENG-E25-20-000
Couldn't load pickup availability
CJM Street Mod - CLOSED DECK EJ25
The Perfect Street-Oriented EJ25 Upgrade
The CJM Street Mod EJ25 Block is designed for drivers who want a reliable, stronger-than-stock EJ25 for spirited street use and moderate power goals.
By retaining OEM case halves and upgrading the critical rotating components to premium forged CJM-spec parts, this package delivers excellent durability without compromising daily-drivability.
Forged Internals: Built for Real-World Street Performance
CJM x Wiseco Forged Pistons
CJM Spec Street Mod Piston upgrades performance and durability
Forged 2618 aluminum construction for excellent strength and heat resistance
Improved detonation tolerance for pump-gas or flex-fuel setups
Reduced risk of common EJ25 piston and ringland failures
CJM x Callies Compstar Forged Connecting Rods
CJM Spec Street Mod forged rods produced by Compstar
High-strength forged steel with optimized weight for responsive street performance
ARP2000 rod bolts for exceptional clamping force and durability
Together, the CJM Street Mod piston and CJM Street Mod rod combination transforms the standard EJ25 into a far more robust and reliable shortblock for street performance builds.
OEM Case Halves — Machined & Assembled In-House
Each build begins with brand-new OEM EJ25 case halves, ensuring perfect geometry and no previous wear.
All machining, clearancing, and assembly are performed entirely in-house by the CJM team for maximum precision and consistency.
Features of the CJM Closed Deck Block
Highlight key qualities of the product, such as the materials, ingredients, or components used. Emphasize durability, reliability, or performance in everyday use.
Draw attention to the care and craftsmanship that went into its design and development, setting it apart in terms of quality and attention to detail.
Add a tagline
Achieve superior engine cooling with our advanced CJM closed deck insert, designed with a radial cooling jacket and coolant pass thru holes.
