what port job from lyod elliot or ai dp the trickflow TFS-30400010 heads flow closet to out of the box. would additional work be needed for a 383 or how much power can still come from porting those heads?

 

you should edit your post so it is understandable and include some info such as what mods you currently have and what your plans for the future are

 

is that better?

 

with those heads, if i wanted to stick with the stock 350 for now, and i ran either a 52 or 58mm tb and a ported intake manifold, long tubes, what cam should i go with? a custom grind or a cc shelf cam and if so which one?

 

anyone? feedback is appreciated

 

I think the CC is a little too big for a stock displacement engine.

 

I think what you are asking translates to "what LEx ported head compares to the unported Trick Flow numbers." First, the Trick Flow combustion chamber CC is too large "out of the box" at 62cc. That costs you one point of compression. The peak flow on the intake is 253cfm @ 0.500" and 254cfm @ 0.600", so they pretty much stall at 0.500". You can find the flows on the TFS website:

http://www.trickflow.com/product/che...t1_airflow.asp

Lloyd show 255cfm on his "budget" head, 260cfm on his LE1 level.

You can cut the Trick Flows to 54cc, and I suspect the good porters can put them over 300cfm.

 

I recently had a car tuned to make 360rw on a bolton 355 running a cc306 cam. It would have made more power if we continued to rev it higher than 6200. Also he had his TFS heads milled down so he wouldnt lose compression.

 

if you mill them down and then i go stroker you cant go back can you?

so to make a good 420-430 to the wheels can the stock head casting support it?

 

anyone?

 

the problem with using a head like TF is that they are not desgined to work on a stock shortblock out of the box. You need to mill them down to keep compression up. When you build a 383 later on you will want to go back the other way and make the chambers bigger again. You cant since you had to mill the snot out of them to raise compression on your stock short block. Not a good choice or a wise decision. I suggest you either buy them and build the 383 now (they still need work to go on the 383)... or you stick with a ported stock casting and use them on the 350. You can build the 383 to work with the stock castings by using flat top pistons and not decking the block too much.

Out of the box they are ok... nothing to get excited about. You can gat better results from a stock casting and sending them to a reputable porter like LE or Ai, ect...

Ported... well you have more potential with a TFS casting over stock. Just depends on your ultimate goals.

If you want a head that will outflow a stock head then the TF's are a great way to go. I have a set on my solid roller motor now. Built by TEA and CNC'd. They flow well over 300 cfm at .700 lift. I'm also using that big chamber to go with domed pistons for a 12.5:1 compression ratio. Your not going to get that out of a stock casting... but I also have some $2000+ into my heads.

 

BTW, 430 rwhp on stock castings? It can be done but You are pushing the limits depending on the rest of your set up. You probably will not see 430rwhp with a stock ported casting and a cc306 cam in an auto... unless your on the ball with everything else.

I've got a pretty nasty 355 solid roller and I am shooting for 450...

 

hey project,

way to sum things up buddy, very good post

 

I too would like to see some more details on your new set-up. Sounds sweet and something I could pick up some pointers on.

 

Yes.....look at the porters and ask for dyno sheets.