73 big block question

[Santo S.]

I have a question on 73 Big blocks. Did all 454's come with AIR systems?
The exhaust manifold has plugs as if one was removed, but can find any other evidence there was once on there.

[Harmon C.]

Re: 73 big block question

Santo

All 73 454's had AIR. Check your emissions label for AIR it will be their.

Lyle

[Michael W.]

Re: 73 big block question

Lyle is correct, all 73's had an AIR system. Another piece of 'proof' is that the manifolds have had plugs installed in them. Not typical of OEM.

[Santo S.]

Re: 73 big block question

Thanks for the responses.