Getting new heads

[SRT_DSTRHOLC]

Im going to get the EQ Iron Rams with 2.02 valves that flow .247 at 500

and I was thinking if maybe stepping the cam up would be good? I have 1.6 rockers also so everything would be X by 1.067 and cam quest said the XE285 was a good cam for those heads, but I dont know about it with .581 lift with 1.6 rockers.. Should I stick with the XE274 .523 lift with 1.6 rockers or what would be a better choice?

10.7 compression
.40 over
M1 or cross wind intake
4.10 gears 3600 stall converter

 

[70aarcuda]

will your valve spring handle the higher lift?

my vote is for the xe274

 

[Mad Dart]

If I were to do it again I would not go magnums, they are
a pain in the *** to set up. Higher lift cams require girdles
and guide plates. The la design is superior in design JMO. You
don't need all the other stuff except maybe a stod kit and
a good set of shafts and rockers. This is my last go with
magnums. I got the Indy x heads. I would use them again
in the la version only though, they out flow the iron rams
out of the box with a smaller intake valve to boot.

Have fun with your build!!

 

[SRT_DSTRHOLC]

Mad haha they only out flow at .500 and I would have to machine everything, so the EQ are best bang for buck SO Im prolly going to stay with Xe274 as I already have magnum heads but going with LA intake pattern so I can use intakes like the tunnel RAM!! haha

 

[Mad Dart]

Mad haha they only out flow at .500 and I would have to machine everything, so the EQ are best bang for buck SO Im prolly going to stay with Xe274 as I already have magnum heads but going with LA intake pattern so I can use intakes like the tunnel RAM!! haha

74,

FYI, the Indy X heads will take a .540 lift cam out of the box, to get more lift you would need to take down the seals is all............. I went with the LA intake also...........FYI when Hughes drills them just know that you will be using the Magnum bolts on the intake. The LA bolts are bigger but will not work. I found this out AFTER the fact.......

I am not trying to argue with you at all... I am here to learn and bounce Ideas off each other. I would really like to see you finish your build with whatever poison you choose......have fun with it is all!!

If you have all the magnum stuff of course go with them, that is why I did.
I was also going to use the heads you are getting but decided on the new castings from RHS.............

If you need a set of head gaskets I have some COMETIC's that will work for your build, they are .051 thick brand new in the wrappers. I paid 165.00 for them. PM me if you could use them. I will let them go CHEAP!

 

[JoeDust451]

I decided on the magnum RHSs, they flow about 10% better the the EQs OOTB, i got them last week, & i'll say they are nice, there only good to .500 lift with the 1110 springs, don't know if they would need any special machineing going with a larger cam.

 

[Mad Dart]

I decided on the magnum RHSs, they flow about 10% better the the EQs OOTB, i got them last week, & i'll say they are nice, there only good to .500 lift with the 1110 springs, don't know if they would need any special machineing going with a larger cam.

Joe,

Here is a link to the Magnum style Indy/RHS X heads that I purchased and sent to BJR and what he did to them.

http://www.forabodiesonly.com/mopar/showthread.php?t=73132

I just got the heads back from him last week, they are pretty darn sweet.

FYI the only head gasket at this time that will work on these heads is a Felpro Part#519SD Perma Torque with a thickness of .054,,,,,,Rock Auto has the best price that I have found on them.

 

[fishy68]

74 JFYI the EQ heads won't accept much over .500 lift without machine work. I know cause I have a set and did all the measurements. Also to even run the cam you have now you have to have the spring pockets cut for using dual springs as recommended by Comp cams so since you have to do that if you have the money and everything else to make the 285XE work you might as well go with it. But remember you really need at least 10 to 1 compression to make that cam work good. Also the best rockers to go with looks like the new ones Hughes has now that use a tie bar to tie 2 rockers together. With them you don't need a girdle unless you get really wild on the cam.

 

[SRT_DSTRHOLC]

the heads That im getting have valve springs good for .525 lift and they have ones that are good for .600 lift. So If I stay with my cam Im fine..and I do have 10.7 compression already... But remember mad I would need valves and springs and seals, because I will be selling my heads to pay for the EQs

 

[SRT_DSTRHOLC]

I wonder if it would be the same price If I buy the RHS heads and have them cut for my springs and 2.02 valves

 

[fishy68]

the heads That im getting have valve springs good for .525 lift and they have ones that are good for .600 lift. So If I stay with my cam Im fine..and I do have 10.7 compression already... But remember mad I would need valves and springs and seals, because I will be selling my heads to pay for the EQs

Are those springs dual springs? If so your probably ok since they would have had to machine them to accept dual springs. The problem is not the spring itself but the heads have to be machined or the retainer hits the valve guide.

I have Hughes springs that are good to .650 lift but they wouldn't fit until I had the heads machined.

 

[SRT_DSTRHOLC]

ya, they said they hold .525 lift and im at 523 524...but if i spend 200 more i get better springs that hold 600 or I can get the RHS for 650 and spend 3-400 for machining and valve spings IDK

 

[fishy68]

$200 more for better springs? That's crazy! Your heads must not be machined to cost that much more to upgrade to better springs. Which ones did you buy? Assembled with single springs I guess?

 

[SRT_DSTRHOLC]

I havent bought them yet with selling my magnums that I have, I will have 900 for heads

 

[SRT_DSTRHOLC]

Ok Ok for 875 plus shipping I can get the RHS heads with valves and the 1110 springs that are good for .550 lift??? so this would be better than spending 800 on the Iron rams right? or will the RHS heads not handle that much lift stock?

 

[70aarcuda]

the best answer you will get is from the source...

Hughes.....

 

[SRT_DSTRHOLC]

I decided on the magnum RHSs, they flow about 10% better the the EQs OOTB, i got them last week, & i'll say they are nice, there only good to .500 lift with the 1110 springs, don't know if they would need any special machineing going with a larger cam.

I read on moparts its .550 with 1110 springs I think

 

[fishy68]

I read on moparts its .550 with 1110 springs I think

Instead of spending hours reading on all the boards everybody's guesses why don't you take 10 minutes and call Hughes as 70AARCuda suggested? That way you'll know right away what is what.

 

[JoeDust451]

I called Tim, The Magnum RHSs will only take .500 lift with the 1110 springs in stock form, they will machine them for 80.00 to except .550 lift (buying the heads from them), its not the springs, its the guide bosses on the heads that limit the lift when there stock, i asked about the head gaskets, you can use the standard stock FelPro head gaskets along with the factory head bolts as well, i told him how i liked these heads, & the casting is heavy, he is sure this will be the next step in iron heads for the magnum over the EQs. 7 the flow potential is much higher. So far, Hughes has the best deal on these RHSs, i've looked around, here is the FelPro head kit # HS 9898 PT-1.

 

[SRT_DSTRHOLC]

so now I need 875 and 80 for dual pattern intakes and 80 for holding my lift

 

[SRT_DSTRHOLC]

Ok going RHS heads with cutting the guide and Good springs... Also going to save up for a Solid cam.

 

[racerx]

Burntorange what displacement motor are you building? I've been told the RHS heads are only good for a stroker. Too much intake runner volume for a 360.

 

[SRT_DSTRHOLC]

366 MRL performance said their fine...Going with a cam in the ..570intake and .580 exhaust lift range with .237 at 50 for duration So I should be fine they said