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What's New:

5/2/07 1989 300zx FSM now Available. See Reference Section

12/01/07 XenonZ31 Fiche is here!

11/06/07 The New XenonZ31 is Here

09/12/07 Added: VLSD Installation and Creating Hybrid Halfshafts

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Z31 300zx Events

Z assn of NY is holding their Northeast Z Adventure at the Saratoga Automobile Museum in Saratoga NY on june 21 and 22 More Details Can Be found Here

If you have an Z31 or Z-related event you think should be posted here, contact the site administrator.

W-series Piston and Piston Pin Differences

PISTON & PISTON PINS:

In the W-series motors, the piston and piston pin have been changed to a full-floating type, with two snap rings to locate the piston pin. Also, piston pin outer diameter has been decreased. The modified piston can be identified by a "W" mark on the piston skirt (As shown). NOTE: A "W" piston requires a modified connecting rod, wrist pin, and piston rings.

Sources Used on This Page: 1988 Nissan 300ZX Factory Service Manual, Nissan Technical Service Bulletin Number TS87-191 Date: December 28, 1987