does the ones in summit fit a 58 mm tb? or what tricks did you guys do to get your intake elbow to fit?

 

The oval duct connections on the throttle bodies are all roughly the same size. Its the diameter of the bores/blades that changes. I've got a 3" diameter Fernco sewer pipe connector on my 58mm Holley, same one that fit on my 48mm stocker. Just had to heat it a little in hot water to stretch it over the Holley. Stock WS6 connector fit fine as well.

 

As stated, it may need to be heated a bit to make it fit. If it's cold out, you'll run into this problem on all throttle bodies

-Shannon

 

Yep, it was b!tch on my stock 48mm a year or so ago. When doing it in the summer I had no problems though.... just get the rubber warm and ensure it is totally on before you clamp it down (or you'll crease the lip and need to replace the elbow completely ).