So I had my air filter assembly off today to get access to my oil pressure sending unit, and I noticed something interesting. Other than having to move the friggin EGR valve out of the way to get the oil pressure sensor socket on, I noticed that my throttle body said Holley V8 on it. Now, in the future when I tuned her up, i was going to buy a fastman 52mm, and call it a day.

I just wanna know, is this a aftermart TB? It has Holley to the left of the V8. This isn't mine, but here's a pic I found of it.


If it's an aftermarket is it a 50mm or how big?

 

It's stock & 50mm.

 

Ok. For some reason I recall the stock is 48mm. Idk where I was thinking that but thanks for the info.

 

Yep, stock TB is 48mm, my TB says Holley on it as well, it's stock. Not all of them were sourced from Holley though, I've got a spare TB that doesn't say Holley.

 

Maybe its the angle of the pic but looks like someone cut the air horns off? Here is a stocker from a better angle

 

TB's from earlier years have Holley in the casting... in later years the casting did not have the brand name on it.