Cosworth Short Block 79mm Forged Crank 9.2:1 CR
If you have taken the mod path beyond the limits of what a stock engine can handle, then it may be time to upgrade to an engine built with an engine block that is a result of countless hours of research and dyno evaluation.
Our superior EJ25 short block contains premium components to sustain large amounts of power and boost. Each short block begins with a brand new Subaru case. The case is thoroughly inspected just before the cylinders are bored out appropriately to receive a set of our incredible Forged Pistons.
From this point, everything is balance in the rotating assembly which includes a new Subaru forged crankshaft along with a set of forged H-beam connecting rods. A set of tri metal race spec bearings are employed to the rods, while one of our skilled engine building experts finishes the assembly.
This particular block will have a 9.2:1 compression ratio.
Here are further details:
• New Subaru EJ25 STI Engine Case
• Subaru Forged 79MM Crankshaft
• Cosworth Forged H-beam Connecting Rods
• Coswroth Forged Pistons and Rings
• Cosworth Coated Tri Metal Bearings
• Balanced within .5 Gram
• Ring Gaps checked
• Deck Height checked
• Connecting rod side clearance checked
• Crankshaft end float checked
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