Custom Performance Engineering developed the Stage I MZR 2.3L Short block as the affordable solution for higher boost applications. This is a perfect setup for anyone wanting to run a more aggressive setup without a heavy investment. Whether you are looking for a quicker street car or more competitive yet lower budget weekend track racer – this is the solution for power, reliability and a peace of mind.

As with all cp-e™ engines, you get the best in performance with no compromise in quality using highest grade components and engineering.

All cp-e™ MZR blocks are precision machined to our spec and hand assembled with utmost care and attention. Each block is carefully blueprinted, balanced and assigned a unique serial number. All specs are carefully tracked and verified throughout the build.

Stage I blocks feature factory size bores with precision honed factory sleeves. cp-e™ offers both Stage I factory spec pistons or the cp-e™ engineered MagnumDI™ MZR 2.3 DISI Stage2 Pistons, all assembled with K1 rods. ARP main studs are included. cp-e™ uses performance main bearings and the cp-e™ Tri-Metal rod bearings are specially coated with a Teflon based coating offering reduced friction and wear. 

Each motor comes with full documentation and a spec sheet. A full engine gasket set and ARP head studs are available as well.

• 2.3L Short Block
• Factory Bore, Honed Factory Sleeves
• K1 Stock Size Rods
• ARP Main Studs
• Performance Main Bearing
• cp-e™ Tri-Metal Rod Bearing
• cp-e™ Precision Spec Machining
• Blueprinted Engine, Documented Hand Assembly with Certificate

Options:

• Stage I Pistons
• MagnumDI™ MZR 2.3 DISI Stage2 Pistons
• ARP Head Studs
• Gasket Set
• cp-e™ Performance Spec Multi-layer Head Gasket .018 Thickness (recommended)

Core Charge- $1900

A core charge will be added to your order. It will be refunded once we receive your original short block core in good condition. Please review the core requirements to make sure you have a good short block core.

Core Requirements:

• Inspect sleeves for cracks
• All main bolts and main girdle must be included
• It must be properly packaged with protection on all sides
• Please clean off as much oil residue as is possible
• Remove all accessories (anything that is attached to the engine)
• Leave anything internally on the engine as a part of the core.

cp-e™ offers a lifetime warranty on all cp-e™ products. However, this warranty does not include short blocks or cylinder heads.