394 CID Engine Detail
Note this doc may contain errors. The FAQ was built off several email newsgroups and other places on the web many years ago. Some things were taken out of context and applied to other years of the same model, etc. It was an attempt to assemble various Olds knowledge, however flawed it may have been. Submit corrections and additions to this information to Outright Olds Contact Page.
General Information
Note: The information contained in all of the "Engine Detail" sections should be read before proceeding with modifications, etc., because some information that applies to all engines, or all small blocks or all big blocks, might not be duplicated in every section.
Timing Chain Covers
Major differences are the timing chain covers. One is aluminun and one is cast iron, hence the difference in pan gaskets. Also different timing chain cover seal. Aluminun is a lot bigger than the cast iron one. All vibration dampers will interchange. To be sure, mic the crank, and bore check the damper. Some dampners will have different pulley arrangements for air or steering, depending on the model car they are used on.[ Thanks to Peter Slisz for this information. ]
Buildup
Buildup Examples
Rebuilding
Tuning / Power Boost
Table of Contents •
Index •
Acknowledgements
History •
Engines •
Blocks •
Heads •
Cranks •
Intakes •
Exhaust •
Pistons
Transmissions •
Diffs •
Brakes •
Suspension •
Steering •
Cams •
Carbs •
Interchange
Best BB •
Best SB •
260 •
303 •
307 •
324 •
330 •
350 •
371 •
394 •
400 •
403 •
425 •
455 •
Diesel
Rebuilding •
Buildup •
Swap •
Restore •
Option Codes •
Wheels •
Ignition •
Comp Ratio
The W's •
The H/O's •
The 442's •
Toronado •
88 / 98 / Starfire •
Cutlass •
Jetfire •
Wagons
Basic Tech •
How To •
Miscell •
All Vehicles •
Additional Information
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