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Help Please!! '64 Olds 98


Guest debbiesmith

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Guest debbiesmith

How do I find out for sure what model engine it is? Do people just want the engine or would someone want car too. Just not sure it's worth much. Thanks for your help.

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As noted, the stock engine would have been a 394. If this really is a 455 that was swapped into place, this is not an easy swap. The 394 used a front motor mount with side mounts on the bellhousing. The 455 uses side mounts on the block and a single mount at the back of the trans. This requires aftermarket engine and trans mounts for the 64 cars.

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If this Olds has the Original Engine, it is a 394CI. On a 394 Engine the Unit Number is Stamped on the LEFT Cylinder Head just below Valve Cover center bolt. By using this Number, the prefix & Suffix Letter will tell which 394 you have.

Red Engine: 88 / prefix H suffix – / 2BC, 280HP, 10.25:1 CR

Green Engine: 88 / prefix H suffix E / EXPORT 2BC, 8.3:1 CR

Green Engine: 88 / prefix H suffix L / Domestic 2BC, 260HP 8.75:1 CR

Red Engine: 88, S88 & 98 / prefix J suffix – / 4BC, 330HP 10.25:1 CR

Green Engine: S88 & 98 / prefix J suffix E / 4BC, EXPORT 4BC 8.3:1 CR

Red Engine: SF & 98 / prefix J suffix S / 4BC, 345HP 10.5:1 CR

Edited by Oldzguy
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