How to identify trick flow heads

[BK_CAULEY]

WTF!! oh well im gonna call TF tommorrow and i will let you guys know. i need to know what CC the combustion chambers are too.

 

[Foxfan88]

the standard TW heads have a 61 cc chamber, just go to trickflow.com and look at the heads there it gives you all the info

 

[Gregg@TFS]

TW heads

Well according to the summit catalog TW's are ALL of the TF heads. TW track heat TW street heat, TW R series the only ones not labled TW are the highports

You have the standard TW head with the dual spring upgrade. Here is the correct part number for what you have. TFS-51400004.

 

[vikingpower]

You have the standard TW head with the dual spring upgrade. Here is the correct part number for what you have. TFS-51400004.

Hey Gregg, I have a bad guide in one of my TW heads. Can I install this at home? Or do I need to have a machine shop do it. Also what size drill bit do I use to open the head bolt holes for 1/2" head bolts?