Ported SRT4 Cylinder Head

[BadFastGTC]

No troubles at all. I have been running Manley titanium retainers on my 8V cars for years and tens of thousands of miles.

So there's no wear or stress issues with titanium retainers on a daily? But you wouldn't use titanium springs though, right?

---------- Post added at 09:57 AM ---------- Previous post was at 09:54 AM ----------

Don't worry Bruce, Sledgehammer isn't getting neglected. Sledgehammer's head is almost totally refreshed and ready to go. A few more pieces and operations will have the good old 8V ready![QUOTE="Top Fuel" Bender;892494]Poor, poor sledgehammer[/QUOTE][COLOR="Silver"]

---------- Post added at 10:02 AM ---------- Previous post was at 09:57 AM ----------

[/COLOR]JT, I could put valve seals in it, but I suspect more issues than what it is worth time wise, besides, where is the fun in a stock head? The turbo was changed back at 208,000 miles or so with an FM E1. Turbo seal found to be leaking on compressor side during original clutch replacement!

Can do valve seals with the head still on Does the oil smoke go away? time for a new turbo too? Why not? The main reason Ti hardware is not used more in production engines is co$t True story....

[shadow88]

Just out of curiosity, will you be doing a leakdown test before removal? I think it would be interesting to see how it held up after all the milage.

[BadAssPerformance]

JT, I could put valve seals in it, but I suspect more issues than what it is worth time wise, besides, where is the fun in a stock head? The turbo was changed back at 208,000 miles or so with an FM E1. Turbo seal found to be leaking on compressor side during original clutch replacement!

Right on! Nice clutch life there!

Just out of curiosity, will you be doing a leakdown test before removal? I think it would be interesting to see how it held up after all the milage.

+1!

[Force Fed Mopar]

No troubles at all. I have been running Manley titanium retainers on my 8V cars for years and tens of thousands of miles.

Cool, what about Ti springs? I've heard rumors that they break after a year or so of daily driving. Something about titanium not handling the repeated stress that a valve spring sees.

[ohiorob]

looks pretty Steve. I'm putting together a SRT motor together for my car. I'm going to leave the head stock '' untouched for now'' with crane 18's. I'm I wasting my time or will it flow better then my old stratus head with alittle bowl work, smoothed out ports and stock 2.0 cams. what do you think.

[BadFastGTC]

Rob, I think you will be fine with the stock head and cams, save for correct springs. If you want the Manley stuff, let me know, we can chat as to options. I found the old head with larger exhaust valves to flow 7cfm more with the same port work and valve job. I would be interested to know, did you run the 18's in the old head? What did you dial in for LSA if so? So many variables!

looks pretty Steve. I'm putting together a SRT motor together for my car. I'm going to leave the head stock '' untouched for now'' with crane 18's. I'm I wasting my time or will it flow better then my old stratus head with alittle bowl work, smoothed out ports and stock 2.0 cams. what do you think.

---------- Post added at 08:39 AM ---------- Previous post was at 08:33 AM ----------

I have no experience with titanium springs. I imagine they would get brittle rather quickly and fail as you have heard, but the subject needs more research. Sounds pretty cool though. I know Ferrari has used titanium coil springs with success.

Cool, what about Ti springs? I've heard rumors that they break after a year or so of daily driving. Something about titanium not handling the repeated stress that a valve spring sees.

[Reaper1]

It depends on what alloy of titanium is being used. Some can get brittle while others are much more resilient.

[cordes]

What a great thread. Thanks for sharing Steve.

[BadFastGTC]

Happy to share the info. Brian and I will not be able to get together until the weekend at best. I am anxious to see if the head will improve. Whatever it does, I am running it!

What a great thread. Thanks for sharing Steve.

[Force Fed Mopar]

It depends on what alloy of titanium is being used. Some can get brittle while others are much more resilient.

So basically it varies by manufacturer?

[Reaper1]

It could I suppose, but I'd think most of them would use similar alloys for that application. I would think that the manufacturers of those type of high end parts would want them to be as reliable as possible, so using an alloy that was known to break after a certain amount of cycles wouldn't be too great.

I think somebody else stated this, but I know for fact that there are race cars out there that use titanium for their suspension springs and also their valve gear. Also remember the titanium eye glass frames that are supposed to be "unbreakable" because they can bend in all kinds of shapes, but return to their original form? I'd think an alloy similar to that would work for this application as well, as long as it didn't degrade from heat, but titanium is known for its high-heat capabilities.

[turbovanman²]

You also have to remember some of the Ti stuff is race only so they know its only going to be used for X amount of time before its tested or discarded.

[Force Fed Mopar]

I'll have to do some more research on it. Don't want to completely hijack the thread

[BadFastGTC]

I would like to look into the titanium valve springs in greater detail myself, but my Sprint service sucks so bad in my neighborhood it takes 3
days for a search to complete. I do not think I would run them due to potential costs, but I wouldn't totally rule them out.

I'll have to do some more research on it. Don't want to completely hijack the thread

[ohiorob]

I have titanium retainers and some name brand springs. they are 9 years old, going to get them checked out to see if they are still good. what is LSA,sorry I have massave memory lost and can't remember
sh!t.

[contraption22]

I have titanium retainers and some name brand springs. they are 9 years old, going to get them checked out to see if they are still good. what is LSA,sorry I have massave memory lost and can't remember
sh!t.

Lobe Separation Angle.

[ohiorob]

Thanks Mike I better write that down lol

[BadAssPerformance]

Steve, Rob, you guys got a cam centeline tool right? If not, LMK... I got dims and pics of the one I made and can make a KC article

[ohiorob]

Steve, Rob, you guys got a cam centeline tool right? If not, LMK... I got dims and pics of the one I made and can make a KC article

is it two drill bits and one eye ball?

[BadFastGTC]

Leggos and wooden dowels?