EGR Pipe Thread Size

[lanciahf]

Hi All,

Question is for a 77 Fiat Spider 4-1 exhaust manifold. Anyone know the thread size of the EGR pipe that goes into the manifold. I would like to plug it with something.

Thanks Ralph

[pauljdav]

I took my EGR "bolt" to NAPA and they had a generic vacuum port that bolted into the hole. I then just used a vacuum plug on that.

Sorry I do not know the size.

Paul