Wiseco Piston Applications: Mini
All Wiseco Pistons are sold with a ring set. Rings are available to order for rebuilding or refreshening of the engine.
| Mini Cooper and Cooper S | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cooper | |||||||||||||||
| Kit Part # | Bore MM / Inch | Over Sizes | Stroke | Rod Lgth. | Comp Ht. | Head cc's | Dome Dish | Gasket Thkness | Deck Clearance | Block Ht. | Comp. Ratio | Pin Dia. | Ring # | Gram | Foot Notes |
| KXXXM77 | 77.00/3.031 | std. | 3.778 | 5.183 | 1.043 | .155 | 8.267 | 7700xx | 1 | ||||||
| KXXXM775 | 77.50/3.051 | .020 | 85.8 | 131.65 | 26.5 | 3.94- | 210 | 11:1 | 7750xx | 1 | |||||
| Cooper S 2002-2005 | |||||||||||||||
| Kit Part # | Bore MM / Inch | Over Sizes | Stroke | Rod Lgth. | Comp Ht. | Head cc's | Dome Dish | Gasket Thkness | Deck Clearance | Block Ht. | Comp. Ratio | Pin Dia. | Ring # | Gram | Foot Notes |
| K618M77 | 77.00/3.031 | std. | 3.778 | 5.183 | 1.043 | ft 0CC | .155 | 8.267 | 7700xx | 1 | |||||
| K618M775 | 77.5/3.051 | .020 | 85.8 | 131.65 | 26.5 | fT 0CC | 3.94- | 210 | 8.5:1 | 7750xx | 1 | ||||
1. Most Wiseco pistons have offset pins. Pins must be offset same as o.e. for quitest operation - pin offset will be opposite of direction of engine rotation.
2. This piston is a flat top w/out valve pockets, to be used if verifying piston to valve and piston to head clearance.
5. There are different versions of this engine for Audi - do visual inspection of dish/valvepocket area to verify compatibility.
- Some pistons are listed with a range of compression ratio's. The low number is determined with an un-cut deck and the higher number is determined with .030 piston to cylinder head clearance.
- Always check piston to valve clearance - If using VTEC or like mechanisms-check with longer duration higher lift lobe.
- Always run at least .030 piston to head clearance including gasket thickness.
- If piston appears to be different than expected, please do not hesitate to call Wiseco at 800-321-1364 to verify compatibility
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