520T heads ???

Wade_Owens · 12-08-2010, 12:36 PM

I had my cylinder head guy flow several of both the 520t and 520T. Either are satisfactory as a starting point, for Stock. The large T is slightly larger on cc's and will more than likely have to be cut back on the intake runner side to get it under 140cc's, that's as originally cast. So far, EVERY 520T I have poured has been too big and needed this done. Depending on style of valve, etc, you may have to machine off more.

Wade

12-08-2010, 12:36 PM	#8
Wade_Owens Senior Member Join Date: Jul 2007 Posts: 578 Likes: 0 Liked 3 Times in 1 Post	Re: 520T heads ??? I had my cylinder head guy flow several of both the 520t and 520T. Either are satisfactory as a starting point, for Stock. The large T is slightly larger on cc's and will more than likely have to be cut back on the intake runner side to get it under 140cc's, that's as originally cast. So far, EVERY 520T I have poured has been too big and needed this done. Depending on style of valve, etc, you may have to machine off more. Wade