HIGH PERF. 2.5L ENGINE PARTS AVAILABILITY

"This bulletin replaces bulletin 84-0-10 of 6/84 due to additional parts."

Earlier this year Pontiac published a magazine called "Pontiac Performance Plus", which outlined construction of a high performance off-road version of the 2.5L engine. Several parts are listed on pages 32 and 70 as available from WDDGM. This bulletin will provide the latest information on these parts. Please use pages 30 and 31 for parts illustrations.

Ref.# Description Part Number Explanation ----- ----------- ----------- ----------- 29 Alum. Rocker Cover 10031327 not yet available 1 Block Asm. 10027633 Cyl. Head (w/o EGR) 10031322 not yet available Cyl. Head (w/EGR) 10031323 not yet available Alum. Cyl. Head 10038433 not yet available 30 2BBL/Alum. Intake Manifold 10031330 4BBL/Alum. Intake Manifold 10038470 not yet available 2X2BBL/Alum. Intake Manifold 10038471 not yet available 27 Cyl. Head Gasket 10031324 2 Cyl. Head 10027776 Still available. Parts 10031322 and 10031323 will be available when 10027776 stock is gone.

3 Crankshaft (3.00" stroke) 10027778 3 Crankshaft (3.25" stroke) 10027779 3 Crankshaft (as forged) 10027777 Head/Main Bolt Hardened Washers 10013123 4 Hardware Package - Eng. Build 10031328 28 Intake Valve (1.94" dia.) 10031326 28 Exhaust Valve (1.60" dia.) 10031325 32 Camshaft bearings 14002525 5 Connecting Rod (5.7" length, Chevy) 14011090 5 Connecting Rod (6.0" length, Chevy) 14011091 Connecting Rod Bearing (use w/rod #14011090-91) 10031582 Connecting Rod Bearing ".001 U.S. (use w/rod #14011090-91) 10031583 Connecting Rod Bearing ".010 U.S. (use w/rod #1401109091) 10031584

Ref.# Description Part Number Explanation ----- ----------- ----------- ----------- 6 Damper Asm. 10031581 Oil Pumps & Screen Asm. (High Output) 10031329 Camshaft & Crankshaft Gear Set (Matched) 10037684 not yet available Clutch-Pressure Plate 10038434 not yet available Clutch Cover 10038435 not yet available Tachometer (11,000 rpm) 10038474 not yet available Tachometer Brkt. Dash Mount 10038475 not yet available Push Rod Guides #1 10012915 Push Rod Guides #2 10012916 Push Rod Guides #3 10012917 Push Rod Guides #4 10012918 Distributor-High Output 10037373 not yet available Ignition Wire Set (4 Cyl.) 10037375 not yet available High Output Coil 10037380 not yet available Ignition Change Over Switch 10037376 not yet available Ignition Cable for Dash Mounting MSD 8260 10037377 not yet available High Output Ignition 10037378 not yet available Soft Touch Rev. Limiter 10037379 not yet available

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.