Ok heres my plans for my 318 build

I have my 318 and this is what I want to do


I have stock 318 heads on there,80s unleaded stock heads,Im gonna be running a stock 340 cam,4 barrel single plain aluminium holley street dominator intake,4 barrel holley carb (dont know but I need a new carb),headers,new timing chain everything else new.waterpump,gaskets, stuff like that.


So Im wondering

Is it worth putting magnum heads on this from a 1992-2000 318/360 magnum heads on this and of course the intake that is special for this setup and the different pushrods.

So does anyone know a price on that "magnum" setup.I know I could find the heads at the boneyard but where the intake?mancini racing will have the pushrods Im guessing.

So any other suggestions for this build.

Please guy don't rag on my underpowered 318.its all i have haha


thanks moparts rules!



P.s what is a good carb for my setup (brand,cfm,etc...)

I think the crosswind intakes are ~ $175 or so & dont order the conversion pushrods for this conversion until you mock it up as they have been reported as being too short.

Going with Magnum heads is totally worth it, they beat the snot out of stock 318 heads. I believe you need different length head bolts to use them, though.

this crosswind intake you speak of.is that the name of it?

any links to websites would help!thanks

do a search on ebay for crosswind...

that probably where the best price is going to be.

this intake?

so i get 318 magnum heads,new pushrods and lifters,new headbolts, and this intake and im good to go?


http://cgi.ebay.com/ebaymotors/CrossWind...sQ5fAccessories

and these heads?

http://cgi.ebay.com/ebaymotors/Chrysler-...%3A1|240%3A1308


can i use the stock 318 rockers arms with different pushrods?

must use magnum rocker arms...

must use pushrod that oil thru them

must use lifters that oil thru pushrods...which will listed as AMC/Mopar lifters.

http://cgi.ebay.com/ebaymotors/CHRYSLER-...%3A1|240%3A1318



or these cheaper ones

the archives has a list of the extra's you need. rocker arms, pedestals, guide plates, head bolts, spark plugs most all lifters have the oiling hole in the top now, possibly can reuse LA valve covers MAYBE different intake bolts/intake gaskets. Rocker arm ratio is 1.6 insteaqd of 1.5.

there are several sets available on ebay..

there is even a set that is drilled for the LA intake manifold...keep looking...LOL

so it wouldbe better to get this out of a wrecked magnum equipped truck cause thats all there and ready to go?

Those heads would be OK for a mild 318 build. We just installed a pair of them on a 99 durango at work. They are made in China and it is very aparent when you see there quality in person. Actually the casting quality was horrible but the machining was good. They had smaller chamber than regular magnum heads but also smaller ports. As a matter of fact I CCd them while I had them to make sure my eyes were not fooling me. I also checked a couple other sets while I was at it and pulled out some numbers from previous stuff I did.

Head Brand, Chamber CC, In. Port cc, Ex. Port CC, In. Flow @.500

Factory Mag. 64 172 62 212/209 RyanJ/Hughes
Chinese 58 136 64
RHS Pro Topline 63 182 67
Edelbrock Mag. 58 176 75 249/231 RyanJ/hughes
Engine Quest 62 174 65 227 Hughes
R/T 63 239/247 RyanJ/Hughes
Mopar alum. 52

I will try to remember to CC my aluminum magnum ports this week.

The CCs are my findings and flow numbers are Intake @.500 lift and whos bench the flow is from is listed after them. I made them a nice chart when writing in the little box but it won't let me do it on the real screen

Been a while since I checked the R/T and I can not find the port sizes, mabey some one else has that info.

The chinese head a horible casting but for a very mild 318 the smaller chambers could help out, that was the only bonus I could find to running them, the 318 Durango didn't like them over 4000RPM. The R/Ts have rough castings but they look very polished next to the chinese ones. For a cheap set of heads the EQ is a better one and you can get them with a warranty for about the same price and you can get them with a LA intake bolt pattern so you can re-use your intake. The RHS is discontinued but they are super nice heads, I have a brand new pair I will sell for about what an EQ or the Chinese head would cost and I will put the LA intake pattern on if you want. PM me if interested. The R/T and Eddy mag are slightly better flow wise but a lot more $$$.

You guys type fast

The Alabama cyl, head ones listed are the chinese ones.

The above link to the clearwater ones are re-man factory heads, don't forget the $100 core charge, at that point you just as well buy the EQ from them or the RHS from me.

http://cgi.ebay.com/ebaymotors/NEW-CHRYS...emZ370142191074

That is the best price I know of on the EQ and that is just stock springs.

The EQ R/T RHS Mopar alum. and Eddy have pressed in seats, the factory ones are induction hardened and the chinese one looked like there was no insert.

259 apiece?

are these usa made ones you listed


but im wondering.can i get these heads out of a wrecked car with a magnum engine?

Sorry, those might be the chinese ones, the price was higher when I bough my EQs from them a while back and there was no core. There is a core required with those in the fine print. That one has the right pic but sounds fishy. Call them and ask, they were very honest with me about the quality of the chinese one. I can not find the regular EQ on there any more.



You can get heads from a JY engine but be careful, the induction hardening process cracks a lot of them. If you buy from a JY make sure you can return them if they turn out cracked. JY heads should get new valve seals, better springs and valve job at minimum in my opinion but this makes them as much as getting EQ heads even the more $$$ one here

http://cgi.ebay.com/ebaymotors/NEW-LA-EQ...emZ370124447607

But you need springs with that one also so this one here should be ready to go with good springs.

http://cgi.ebay.com/ebaymotors/NEW-EQ-MO...emZ370140468788

I think I got my links right this time

but could i get this stuff out a junkyard motor?5.2 liter magnum out of a ram!

I have heard that the stock magnum heads are often cracked. The ones I have on my 360 were not, but I may have just been lucky.

As for the crosswinds intake I just spent the extra $ for a USA made Edelbrock Performer RPM AirGap for the Magnum motors. USA made. No extra bolt holes to plug. It is nice that we're still able to buy parts for our cars that are made here, since with other things we rarely have a choice anymore.

yes it is.i like buying usa made stuff!

so how much was that intake?