Description
For Subaru EJ257 99.75mm + short-block builds, this Platinum Series piston listing brings the applicable Manley piston grades and dimensions together while keeping each SKU selectable at the variant level. The parent listing is distinguished by 25mm / 8.5:1, which should be cross-checked against the rest of the engine combination.
For Subaru EJ257 99.75mm + builds, piston grade and bore size should be treated as measured engine-build specifications. Confirm the matching cylinder and any required piston-to-wall clearance before assembly.
Key Product Details
- Application: Subaru EJ257 99.75mm +
- Manley Series: Platinum Series
- Title Specification: 25mm / 8.5:1
- Product Family Detail: 2618-alloy forged piston construction
- Product Family Detail: tool-steel wrist-pin hardware on applicable part numbers
- Product Family Detail: moly skirt coating on applicable part numbers
- Manufacturer Part Number: 612202C-1
Package Quantity
Sold individually. This listing supplies one piston per selected SKU; order the quantity required for your engine and verify that all pistons match the machine shop’s bore/grade plan. This quantity applies to the selected Manley SKU family shown on this product page.
Selection & Fitment Notes
Verify bore finish, piston grade, pin size, rod compatibility, compression target, deck clearance, valve clearance, and ring requirements before final assembly.
Professional engine assembly and measurement are recommended. Product specifications should be confirmed against the selected Manley part number and the requirements of the exact engine build.