Geez
Here's a page from the FSM on a 66 273. They state .013 on the intake and .020 on the exhaust. I'd rather have them a tad loose than too tight. Make sure to adjust them to specs while the engine is hot. I always go all the way through on the feeler gauge.
Here's a page from the FSM on a 66 273. They state .013 on the intake and .020 on the exhaust. I'd rather have them a tad loose than too tight. Make sure to adjust them to specs while the engine is hot. I always go all the way through on the feeler gauge.
