B58 Engine for Sale – Forged Long Block (B58 & S58 Platforms)
The Eride Machines B58 Engine for Sale is a professionally built forged long block engineered for enthusiasts and performance shops demanding reliability, power, and flexibility. Designed specifically for BMW B58 Gen 1, B58 Gen 2, and S58 platforms, this engine is assembled using proven components and strict quality control standards to ensure long-term performance under high boost and extreme driving conditions.
Each long block starts with an OEM BMW block that is thoroughly cleaned, inspected, and precision-assembled in-house by Eride Machines, a trusted performance engine builder. The engine features CP-Carrillo forged connecting rods, ARP 625+ head studs, ARP main studs, and Eride Machines-spec performance bearings, providing a foundation capable of handling serious horsepower while maintaining OEM-level drivability.
This is a complete long block assembly, professionally sealed and ready for installation. Customers can configure their engine with optional upgrades such as CP forged pistons, stroker kits, fire ring head sealing, CNC cylinder head porting, oversized studs, upgraded cams, and closed-deck or sleeved options. Matching professional installation services are available, along with domestic crate shipping for safe delivery.
Compatibility extends across popular BMW and Toyota models, including BMW 340i, M340i, M240i, Toyota Supra, and S58-powered M2, M3, M4, X3M, and X4M. Whether you are replacing a failed motor or building a high-power street or track setup, this built B58 engine for sale delivers confidence, durability, and performance.
Every engine is backed by a 2-year or 50,000-mile warranty, reinforcing Eride Machines’ commitment to quality and customer trust. When purchasing from https://eridemachines.com, customers receive expert support, transparent specifications, and a product built to exceed expectations.
Technical Specifications
Block Material: OEM BMW block
Internal Components: Forged internals with Eride Machines-spec bearings
Assembly Type: Complete long block
Studs: ARP 625+ head studs and ARP main studs
Compatibility: B58 Gen 1, B58 Gen 2, S58
Warranty: 2 Years or 50,000 Miles
Vehicle Compatibility
B58 Gen 1: BMW 340i, BMW 240i
B58 Gen 2: Toyota Supra, BMW M340i, BMW M240i
S58: BMW M2 G87, M3 G80, M4 G82/G83, X3M F97, X4M F98
FAQs
Is this a new or used B58 engine?
This is a professionally assembled forged long block using a fully inspected OEM block with new performance internals.
Is this engine ready to install?
Yes. The engine arrives fully assembled, sealed, and ready for installation.
Can I customize the engine build?
Yes. Optional upgrades include forged pistons, stroker kits, CNC headwork, fire rings, and more.
Do you offer shipping?
Yes. Secure domestic crate shipping is available.
Why buy from Eride Machines?
Eride Machines is a specialized performance engine builder offering proven components, expert assembly, warranty protection, and dedicated customer support.














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