RawGtPower

Whats better, Trick flow Twisted wedge street aluminum head or an AFR 165 aluminum head? There both identical, but which one is better?

ikeybmg

i hear more about afr but i think its just personal preference above anything else. if all the numbers are the same, then it should be the same.

Grimace5.0

Well, without alot more details about your engine and car nobody can give a worth while answer.

primetime5.0

i wouldnt buy TF TW heads, so i say AFR

Grimace5.0

Any reason why? Just curious mainly. I wouldn't buy any TF, TEA or anything from summit but I have my own reasons.

RawGtPower

I have Trick flow track heat intake 24# injectors 75mm maf 75mm tb, 19lph fuel pump, e303 cam, cold air intake. I was thinking about the AFR 165's but im worried about piston to valve clearance. The guy from trick flow said that with the twisted wedge head, i wouldnt have to worry about it.

86HOGT

The twisted wedge from Trick flow has the valves rotated to "unshroud" the intake valve. This can create piston to valve clearances I was told. With AFR, you'll get the same if not better flowing head that is still an inline head and shouldn't have to worry about valve clearance as much.

Also, with TF's TW's you have to get their special pistons to run any big cam.

r.barn

check out the link below to see the different flow rates for different
heads

http://forums.stangnet.com/showthread.php?t=334773

ckyguy68

ive heard that twisted wedges put a beating on the valvetrain due to the obtuse angle of the pushrods to the rockers.

grabbem88

i'm not going to start anything,but i found something out today....trickflow is using a different metal supplier....

i used to diecast alum...and we stopped buying from a certian supplier(japan..since we make alot of their parts...kinda a catch 22)


castings are very weak..alot of porosity aka airholes...which means a high tendancy of failed leak tests/pressure.