Hey all wnating to know if any one here has installed a set of the AFR 185 heads on there own car. been doing a lot of research about heads and finnaly came to the conclusion that these are what i want for what i am planning to build. my real question is this, I know if you have stock pistons u must fly cut the valve reliefs. i have a freshly rebuilt 302 with some Kieth Black 115 Performance pistons that already have larger valve relief cuts in them. If you look at KB Performance Piston site they indicate that these are made to be used with the TRICK FLOW Twisted heads. I looked at the specs between AFR heads and Trick Flow and the valve size is the same but what is different is the angle of the valve location. AFR are 20 degrees for both intake and exhaust and the Trick Flow are 15 degrees for intake and 17 degrees for exhaust. so will i need to Fly cut the valve relifes still?
thanks all

 

just get the tfs heads, you'll be glad you did, FAC 190's

 

should have mentioned i live in cali and they need to be carb compliant the 190 are not but the 185 are

 

ewwwww

 

yes when it says for TRICKFLOW..... it means it

so if you use poopy AFR's you will have to cut up the pistons.

don't be dumb, buy trickflow heads, more power, and pistons are designed for them.

 

tfs makes 170 and 185's iirc that are compliant

 

did some more research and found some trick flow 205 that are carb compliant. just passed in may 12, 2012
p/n 51400004-c02
complete head 7degree lock style
theses are identical to the 205 p/n 5140t010-c02
only differance is discription say assembled but with out springs? and a 10 degree lock style.
what is the lock style? that is the retainers for the valves to springs right?
witch is better7 or 10 dergree.