Expected Lead Time: 1-2 Weeks
CJM-ENG-F20-20-000
Couldn't load pickup availability
CJM STREET Mod – FA20 DIT SHORT BLOCK
High Performance FA20 Foundation for Street Application
The CJM Track Mod FA20 DIT Shortblock is engineered for drivers who want OEM-like drivability with substantially improved strength and reliability. By retaining brand-new OEM FA20 DIT case halves and upgrading the rotating assembly with premium forged CJM-spec components, this package delivers exceptional durability without compromising smooth daily performance.
Forged Internals: Built for Real-World Street Performance
CJM x Wiseco Forged Pistons
CJM-spec Street Mod piston is designed and tailored for FA20 DIT combustion chamber and DI heat management
Forged 2618 aluminum construction for excellent strength and thermal stability
Improved detonation resistance—ideal for pump-gas, flex-fuel, or upgraded-turbo setups
Reduces the risk of common FA20 piston failures, including ringland issues and heat-related damage
CJM x Callies Compstar Forged Connecting Rods
Custom CJM-spec forged rods manufactured by Compstar
High-strength forged steel with optimized weight for responsive street manners and fast-spooling turbo performance
ARP2000 rod bolts provide exceptional clamping force and long-term durability
Together, the CJM x Wiseco pistons and CJM x Compstar rods transform the stock FA20 DIT bottom end into a far more robust and reliable foundation for street-focused performance builds.
Brand-New OEM Case Halves — Machined & Assembled In-House
Every build begins with brand-new Subaru OEM FA20 DIT case halves, ensuring perfect geometry with zero prior wear or distortion
All machining, clearancing, and assembly are performed 100% in-house by the CJM engine team
Guarantees consistent tolerances, precise fitment, and maximum long-term reliability
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.
