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 $530.00. Plus shipping.
Call toll free to purchase at: 1-866-700-5877

Mazda
Miata 1.6L B6 16-valve DOHC
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
K554M785 78.50 / 3.090 .020 3.287 5.228 1.275 36 -13 .043 .016+ 8.130 8.7:1 .787 7850xx 4
K554M79 79.00 / 3.110 .040 83.5 132.8 82.38 36 -13 1.1 .4+ 206.5 same 20mm 7900xx 4
K554M795 79.50 / 3.130 .060 same same same same same same same same same same 7950xx 4
K532M79 79.00 / 3.110 .040 3.287 5.228 1.266 36 9.4 0.043 .007+ 8.130 14.1:1 .787 3110xc
.5mm 83.5 132.8 32.16 36 9.4 1.1 0.178 206.5 21mm
Call 78.50 / 3.090 .020 3.287 5.228 1.266 36 1 .043 .007+ 8.130 11:1 .787 7850xx
Call 79.00 / 3.110 .040 83.5 132.8 82.38 36 1 1.1 .4+ 206.5 same 21mm 7900xx
Call 79.50 / 3.130 .060 same same same same same same same same same same 7950xx
Miata 1.8L 16-valve DOHC
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
K553M835 83.50 / 3.287 .020 3.346 5.228 1.201 50 -4 .031 .028- 8.130 8.6:1 .787 8350xx
K553M84 84.00 / 3.307 .040 85 132.8 30.5 50 -4 0.79 .71- 206.5 same 20mm 8400xx
K553M845 84.50 / 3.327 .060 same same same same same same same same same same 8450xx
K553M85 85.00 / 3.346 .080 same same same same same same same same same same 8500xx
Call 83.50 / 3.287 .020 3.346 5.228 1.220 50 7 .031 .010- 8.130 10.5-11.0 .787 8350xx
Call 84.00 / 3.307 .040 85 132.8 30.5 50 7 0.79 .71- 206.5 same 20mm 8400xx
Call 84.50 / 3.327 .060 same same same same same same same same same same 8450xx
Call 85.00 / 3.346 .080 same same same same same same same same same same 8500xx

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
4. This piston made w/ stock compression height which is very close to cylinder head. Use Cometic thick gasket if decking block

* If piston appears to be different than expected, please do not hesitate to call Wiseco at 800-321-1364 to verify compatibility
* Always run at least .030 piston to head clearance including gasket thickness.
* Always check piston to valve clearance - If using VTEC or like mechanisms-check w/ longer duration higher lift lobe.
* 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.

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