Stealth Heads

[mickey]

Planning to purchase a set of Stealth Heads from 440 source bolt on out of the box, any comment or suggestions to make before i purchase them? GOOD/BAD ETC ..thxs

[moper]

Worth the money, have them carefully inspected for retainer issues and the valve job checked. Same as anything else really.

[shawge]

   I got the first run of heads from 440Source.  This is what my engine shop did:
- The keepers were crap and were replaced w/ 10* comp cams keepers & retainers (611-16 & 741-16.)  I've heard that the issues with the keepers have been fixed in the later runs.   
- The push rod holes needed to be enlarged to support 3/8" push rods. 
- Spring pressures were OK to use with a custom Engle K58 grind. 
- Guides were honed and valves lapped.

That's it.  My 451 made 488 HP and 530 ft-lbs of torque on the dyno.

I'd call that good.  Just have your shop do an inspection on them to be on the safe side.

[nivvy]

fire ring overhangs into the combustion chamber....... 

[shawge]

On some heads, yes.  The engine builder is going to have to look at all the parts and do a select fit for any performance build.  Some folks have been successful in using the ROL (forget the #), Felpro 8519-PT or 17059 Marine gaskets.  For my engine, it was the factory chamfer that was causing the fire ring overhang problem and not the heads.  Solved by using MrGasket 3233G (4.500" MLS - made by Cometic.)

[moper]

You want to be careful about the ring, but i understand that was the first batch of heads...

[mickey]

Thanks folks, all responses grateful, makes my purchase so much easier. some concerns for sure. sounds like a pretty decent heads. cudachallenger ROCKS

[EB3-GranCoupe]

mickey,
did you get the heads?  if so, how did they work?

thanks!

[Tejas R/T]

 

[moparmaniac59]

I am using the later production run Stealth heads with Hughes rockers and shafts, and different springs, keepers, retainers. Had them fully ported and slapped them on a 543 stroker that made over 600HP on the dyno. I've had no problems with them. Now I need a Dana 60!!

                                                Matt B.

[moparniac]

I wouldnt touch stealth heads with a ten foot pole.....  unless you had jeff at MCH do your heads for you... Worst customer service in the world! 

Yes on the dana 60 

[oldkimmer]

..........Save yourself the money and agrevation...........ebrocks or indys ez .......kim...

[ragtopdodge]

..........Save yourself the money and agrevation...........ebrocks or indys ez .......kim...

And THOSE heads has never had issues???

[moper]

What they are screaming for is...


More Cowbell...

[Skeletoil]

Bought the 543-1/2 inch stroker kit too. Heads were $900 bucks with the stroker kit it came in at $3000. Takes another $3000 to start. Oil pan, external oil lines, Msd ignition, rebalancing and checking, valves undercut. Main and head studs, main girdle, swinging oil pump pickup nothing that I can't do at home except the valve undercut. New retainers and springs to match the cam, steel washers for the springs and a good set of roller rockers and shafts and shims. Yah it will take another 3 grand.