Anybody know off hand what size it is stock. I'm building an engine useing a first gen intake (ported and polished ) on srt engine with 55 mm tbl.Is that going to be enough.Oh yah it's for 1st gen car,so srt intake won't fit.

 

On the back side of the butterfly its stamped 52W. But when I measure where it meets the adapter I get 53.03 mm


Hope this helps.

 

Thanks for answering up Gargoile, the sound of silence was deafening!!! If I knew what size was stock I'd have had to answer. This was starting to remind me of the Pink Floyd song,,,,,,,,,,,,,,,,,is anybody out there ? kept ringing in my head,,,,,,,,,lol

 

Thanks for the answer,I'm thinking 55mm ought to be good then. I just hope the flow through the 1st gen intake manifold is good enough.(ported and polished)