MBC Racing

iTrader: (3)

I have been hearing conflicing info on if i can use stock rockers on TEA 225 heads. Some say yes, some say no, some say you need shims.....

Can anybody please comment on this? thanks!

1nasty86

iTrader: (63)

only run stock rockers on tfs heads with the upgraded powder metal valve guides.. and DO NOT shim the rockers! it pushes the tip of the rocker to one side and causes it to wear the stem of the valve down, even to the point of it hitting the locks. i have trickflow 225's with the pm guides and they work great

garygnu

what I was always told ,with bronze valve guilds use roller rockers.less wear on the guilds.

vettenuts

iTrader: (4)

Personally, I would contact Brian Tooley directly and get his input. Also, stock rockers on an aftermarket cam typically require lowering (not shimming which raises the rocker) to correct the geometry (wipe pattern). You should check it though regardless as any change to rocker height will also change pushrod length.

1nasty86

iTrader: (63)

All my info was given to me via brian.

gjohnsonws6

iTrader: (12)

I was also told the same from him as well

Mike Morris

iTrader: (55)

What he said.

MBC Racing

iTrader: (3)

Guys, thanks for the info. I have an email and phone call into TEA.


One question.... Why does thunder racing sell shims and say they have to go with the TEA heads? Did something change in the design over the years that no longer requires the shims?

Thanks!

1nasty86

iTrader: (63)

shim them if you want but in a few 1000 miles when the tips of your valves are gone from the rocker eating away at the tip dont blame t.e.a, it will be thunder racings falt. i know brian had said he had 2 sets that needed valves from just when he had my heads so i would not recommend you shimming the tfs heads.