Wiseco Pistons

RPM - RON'S PRECISION MACHINE, INC.
3461 W. 250 N.
Hurricane, Utah 84737
1-435-673-0724 e-mail

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Shelf-Stock Pistons. Sold complete with pistons, rings, wrist pins and circlips. (piston set)
Most piston sets on this page are $532.80. Plus shipping.
Call toll free to purchase at: 1-866-700-5877

Porsche
944 87-89 Turbo 2.5 Ltr 8V - Nicasil Only
Kit Part # Bore MM / Inch Over Sizes Stroke Rod Length Comp Height Head cc's Dome/Dish Volume Gasket Thickness Deck Clearance Block Ht. Comp. Ratio Pin Diameter Ring # Foot Notes
K538M100 100.00 / 3.937 Std. 3.106 5.906 1.606 -25.7 .055 8:1 .945 10000gh
Std. 78.9 150 40.8 -25.7 1.4 24mm
944S 87-89 2.5 Ltr. 8V - Nicasil Only
Kit Part # Bore MM / Inch Over Sizes Stroke Rod Length Comp Height Head cc's Dome/Dish Volume Gasket Thickness Deck Clearance Block Ht. Comp. Ratio Pin Diameter Ring # Foot Notes
K539M100 100.00 / 3.937 Std. 3.106 5.906 1.606 -9 .055 9.5:1 .945 10000gh
Std. 78.9 150 40.8 -9 1.4 24mm

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
* Some pistons are listed with a range of compression ratio's. The low number is determined w/ an un-cut deck and the higher number is determined w/ .030 piston to cylinder head clearance.
* Always check piston to valve clearance - If using VTEC or like mechanisms-check w/ 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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