Diesel Engine - Improved Cylinder Head Bolts

Number: 84-96

Section: 6A (VI)

Date: Mar., 1984
Subject: IMPROVED CYLINDER HEAD BOLTS - 6.2L V8 DIESEL ENGINES


Model and Year: 1982-84 "C/K" (10, 20, AND 30 SERIES) TRUCK

1983-84 "G" VAN AND "P" TRUCK (20 AND 30 SERIES)
TO: ALL CHEVROLET DEALERS


New head bolts are being used on 1984 6.2L diesel engines in production. The bolt is available from WDDGM as P/N 14077193. Whenever a head is removed from a 1982-83 engine, replace the head bolts with this new bolt. The new bolt provides a more even clamp load.

Whenever head bolts are changed, be sure to reference Chevrolet Dealer Service Technical Bulletin 83-T-76 (6.2 diesel head gasket leakage) for correct installation procedure. Also be sure to use a teflon (R) type sealing compound, such as P/N 1052080 or equivalent, on the bolt threads and under bolt head.