Need an EFE (aka heat riser ) valve for a 78 Cutlass with a stock Chevy 305. Will one from an Olds 307 be a direct swap for this?
I haven't got under the car to get a closer look but a quick look from the top they appear to be the same part.
I haven't got under the car to get a closer look but a quick look from the top they appear to be the same part.