273 318 interchangeable parts

ColoradoCuda said

Can someone verify that engine accessories and parts from a 1967 273 are interchangeable with a 1967 318.

I have a 273 (in a 67 Valiant Signet 4 dr) and plan to buy a 318 long block and want to use most of the parts from the 273. The final 318 will go in a 67 Barracuda fastback. Also, will my slant 6 3 spd manual work with the 318 with a new bell housing?

Thanks for any suggestions

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Both engines are LA blocks, assuming the 318 is a 67 (US) or later. The only things that won't interchange will be the pistons (different bore) and the flywheel. The flywheel for the 273 uses the same clutch as the /6, the 318 uses a larger pressure plate and disk assembly.

If you want to run the manual with the 318, ensure that the crankshaft has been machined to hold a pilot bearing. Not sure if you'd even be able to get the 3-speed to bolt up properly without it.