GM Service Manual Online
For 1990-2009 cars only

CAMSHAFT LOBE LIFT SPECIFICATIONS MANUAL UPDATE

VEHICLES AFFECTED: 1984-89 CORVETTES WITH 5.7L

The following specifications supersede information previously published in the 1984-89 Corvette Service Manuals, Section 6A1, "General Engine Mechanical".

Corvette L98 Camshaft Lobe Lift Specifications

Model Intake Exhaust Year mm (in.) mm (in.) ---- --------- -------- 1984 6.833 (0.26902) 7.021 (0.27642) 1985 6.833 (0.26902) 7.021 (0.27642) 1986 6.833 (0.26902) 7.021 (0.27642) 1987 6.833 (0.26902) 7.021 (0.27642) 1988 7.021 (0.27642) 7.281 (0.28666) 1989 7.021 (0.27642) 7.281 (0.28666)

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.