Pics of the heads that just came in for the stroker. *56k no way!*

[Stopsign32v]

TFS Twisted Wedge 205cc with alittle bit of work done to them. Started out of a bare casting, CNCed them, then modded them alittle bit more, and finally put the lightweight springs, valves, and Ti retainers on them. Should be good heads for a 7,400rpms shift point. Still waiting on the 3/8" studs and the stud girdle.

LSX valve springs

 

[cenok is family]

geez, those are beefy as all hell! what stroker set up are you running?

 

[jammer84_03]

did you get those from et performance? patriot performance coated spings?

ET PERFORMANCE

 

[NIKwoaC]

Pretty... You CNC them yourself?

 

[joel5.0]

Nice!

 

[Maryland Stang]

I'd get in there and polish those ports as smooth as silk before going any further.

 

[Stopsign32v]

geez, those are beefy as all hell! what stroker set up are you running?

331

 

[5spd GT]

Nice looking cylinder heads!

I would suggest 7/16" studs.

 

[lang williams]

"I'd get in there and polish those ports as smooth as silk before going any further."

I've read you don't want the intake side polished too much. You want a little tumbling of the air to help the air/fuel to mix. The exhaust side you can polish all you want.

 

[1990MustangLX50]

"I'd get in there and polish those ports as smooth as silk before going any further."

I've read you don't want the intake side polished too much. You want a little tumbling of the air to help the air/fuel to mix. The exhaust side you can polish all you want.

ive heard the same thing, those heads look ready to rock

 

[Maryland Stang]

"I'd get in there and polish those ports as smooth as silk before going any further."

I've read you don't want the intake side polished too much. You want a little tumbling of the air to help the air/fuel to mix. The exhaust side you can polish all you want.

On a carbed car yeah. The slight roughness helps keep the fuel in suspension as it heads through the port. On a port fuel injection car it's not an issue.

 

[Rick James]

7600 RPM?What valvetrain/lifters are you running?I felt something move in my pants when i saw them.LOL

 

[Stopsign32v]

Nice looking cylinder heads!

I would suggest 7/16" studs.

I know how to build motors. But thanks for the info.

When using a girdle it eliminates the movement of the studs on the 3/8", the nuts on the 3/8" studs are much more beefy, and the rocker trunnion is significantly thicker with the smaller hole drilled through them rather than the larger 7/16" hole.

 

[Stopsign32v]

7600 RPM?What valvetrain/lifters are you running?I felt something move in my pants when i saw them.LOL

8mm stem valves, LSX style valve springs, and the lifters are yet to be bought. Next thing on the list will be the Victor EFI 5.0 intake. Then its off to get ported.

 

[5spd GT]

I really like the LsX style valvetrain.

Why the 331 over a 347?

 

[Stopsign32v]

I really like the LsX style valvetrain.

Why the 331 over a 347?

More reliable. I've heard too many horror stories about 347s and given if they are true or not I rather not find out the hard way.

 

[joel5.0]

More reliable. I've heard too many horror stories about 347s and given if they are true or not I rather not find out the hard way.

View attachment 301448

Why is a 347 less reliable than a 331?

 

[bentley429]

Its not, anymore there used to be problems with burning oil because of how they used to be designed but over the past years they have cleared it up. BTW what block are you using? Stock block+7400 rpm+a little time= your $2000 heads junk when it splits.

 

[Stopsign32v]

Why is a 347 less reliable than a 331?

Just going by what I heard. The oiling issue and my engine builder says they have a problem with putting more stress on the sides of the clyinder walls because of the extra stroke. I'm not saying any of these are true I just do not want to find out myself and this combo is gonna make more than enough power for now so I will not miss the 16cid difference.

Cute picture though.

 

[Stopsign32v]

BTW what block are you using? Stock block+7400 rpm+a little time= your $2000 heads junk when it splits.

Block that came in the car. If it splits it splits. Will give me a reason to get a Dart block and put the 74mm turbo back on the car. Should make 600-650rwhp @ 10psi then.