Wiseco Pistons Honda Acura GSR LS B16A B18C1 B18A/B 81 mm K542M81AP
Wiseco sport compact pistons are forged and machined in-house and receive a full compliment of power enhancing features. Light weight forgings, millimeter ring packs, extra-strength forgings, gas ports, skirt coatings, offset pins, and a variety of other features are available to insure each engine exceeds our customer’s expectations. Optimized skirt profiles minimize rock and provide long skirt life in stroker applications.
All machining is done on the newest CNC equipment to insure the tightest tolerances in the industry. Our Wiseco sport compact pistons are top of the line performance parts, built for the demanding consumer that wants nothing but the best. Some of our sport compact pistons are even matched with high quality NPR Steel nitrided rings with napier style 2nd rings.
Part # K542M81AP
B16a- CR 8.79:1
B18a/b- CR 9.4:1
B18a/b w/ vtec head - CR 9.75:1
B18c- CR 9.86:1