ok erick and others who ive had heated debates with, i finally have enough for a set of new heads. i found a set of 180cc runner 64cc chamber 2.02 1.6 complete dart iron eagles on ebay for 799 +70 s/h. now heres my question to you IRON or ALLUM!!?
Printable View
ok erick and others who ive had heated debates with, i finally have enough for a set of new heads. i found a set of 180cc runner 64cc chamber 2.02 1.6 complete dart iron eagles on ebay for 799 +70 s/h. now heres my question to you IRON or ALLUM!!?
aluminum all the way, lighter and better quench, plus they dissapate heat better
I'll get the argument started by saying that if you are already running camel humps(the ones with 2.02 valves) you won't see a big enough improvement to justify half that money. (Your my hi-rpm gasser hero:LOL: :rolleyes: ,,,you were using camel hump 2.02's weren't you):confused:
Since I'm assuming that you'll be racing with it, if for no other reason than weight savings, I'd say run aluminum. Also, as stated before, becuase of the thermo-dynamics of aluminum vs. iron, they disipate more heat and allow you to run higher compression ratios before detonation becomes a problem. They are obviously more expensive and there's a reason for that....
That being said, I'll be running cast irons on the flaming chicken because I personally couldn't justify spending that much extra money to get the aluminum Edelbrocks. However, if I find that the motor has detonation issues on premium pump gas....well, I'll have little choice but to make the switch.
Good luck,
Dutch
Aluminum....
If I had your money ---aluminum! If it was mine I would run the humps.
Aluminum, just get the right head gasket, for cast/ aluminum diffrences, and don't use sealer at all.
wish there was a aluminum head for the 200/250 Ford I6 that I could afford, but there's not, will be $1,500 and it's in testing stages right now, not ready for production yet.
Just buy some AFR heads.
im currently running a set of 291 casting's ported, 1.94 1.6 heads,
A good set of aluminum heads will greatly improve the flow charachteristics, as well as let you run about 1 point higher on compression.... Just clean those 291's up really pretty and set them on the shelf......Quote:
Originally Posted by gassersrule_196
there is no differents in air flow between aluminum and iron.dart iron eagles are ten time better then chevy hump heads.i have a 55 gallon drum of hump heads behide the shop.the aluminum heads dissapates heat better which well allow you to run a little more compression.the combustion chambers from the aluminum and the iron are the same to.the good thing about aluminum heads they can be welded easy.if you're looking for a good street head.the vortec fast burn chevy heads are very good.reg port for up to 350ci, large port up 400ci.i think you can get the reg port from jegs for around 250each.i build race engine for a living and very good dyno number on mild street engine with these heads.the iron eagle are very goo to with porting and good cam selection on 10to1 400ci you can 500+hp.
wanna sell any of them camel hump's? my friends are always buying
you got to be kidding?i have no idea what shape their in.been there for 10+yrs.i would'nt feel good about selling.i also dont now if pair's.guy's come in the shop with them after i tell them how much to fix.we just order new ones.i dont take peoples money for repairs when you can a better product buying some new ones.treat people good and they keep coming back.if you remind me when summer brakes. i well have my helper dump them out and look for pairs.if i have any good pairs you can have them.you pay shipping and packing.
I have already told him about the cost of building 40+ year old castings.Quote:
Originally Posted by 555nova
I just don't get why people don't just buy new heads.
Why put all that money in those old castings that don't flow as well as the new ones do.
erik sounds like you have bad ass 57 i love them things.there are hundreds of heads that out flow the best flowing camel backs.i had a guy come to shop last yr with a pair with about 2000 in work and they only flowed 262 max .600 lift.a set of out of box large port vortec heads flow 269 at .600.i have a set of afr 180 runner ported bye one of best guys around for sale with a super victor intake.the heads flow great down low and peak at 305 at .690 lift port speed very good. i'm selling them because they never came back to pay for them.
Yup, the old technology in cylinder heads is way down from what is available in even moderately priced aluminum heads... I would almost bet an out of the box set of even just the Edelbrock RPM heads will outflow with better velocity then a pair of camelbacks with $1500 worth of flow bench and porting time..... Kind of like comparing a dual point distributor with an MSD hei distributor...not even fair!!!!
Yes,the car is bad a$$ but she tends to be a pain to drive with the 4-link.Quote:
Originally Posted by 555nova
The biggest problem most people have with heads is everyone thinks bigger is better.
I have tried to tell everyone go with the head that has the smaller port volume with the highest flow numbers.
Your AFR heads would be perfect for a 406-434 pro street engine with a good hyd. roller cam.
Shhhhhhh. don't let the secret out till i sell my other set of camel humps.......Just kidding.............I had my set of humps sitting there at the machine shop..............was going to cost $400 bucks to fix them right plus the cost of perfomance springs to match the cam I get. Sold them for $150. Add all that up and its pretty close to a set of new (better) heads. I am going to go with one of the alum. top end kits by holley or edlb. not sure which one yet.
chevy drivin look in to the reg port fast burn vortec heads jegs has them for 260 each.i have them on a customers 350 with a mild hyd roller.i dynoed the engine last sat it made 388hp.the large port vortec heads work great 383 and up mild street engines.
My block is built already, 327 small journal bored 40 with .125 domed forged speed pro pistons. Had the bottom end balanced and am awaiting funds to finish the build. Has 10.35 cr with 64 cc heads. Was looking at the top end kits, they advertise dyno numbers of 400 hp on a flat top 350 cid. So I was going to try and get as close to that HP as I could using either kit. The kits are 1,600 bucks for heads/cam/intake and a few other odds and ends. Would buy everyhting seperate but don't feel like guessing at matching parts combos up. Going to put it in a 68 camaro , I have two powerglides I could build or a T400. My buddy gave me a 3500 stall that will fit the T400 so thinking of going with that one.
i would use th400 it will come out the hole better the first gear ratio is 2.48 the glide is 1.76 i think.if you by the kit i use the edelbrock.if you use a 75shot of nos the car will run very strong.you dont have to change timing or fuel if you stay 75 or lower.good luck,run fast,run safe.the motor should come close to 375-400hp.i build racing for living if i can help i will.
i didnt say they were for me i have my eyes on a set of darts
Scooter, what size motor do you plan on using under these heads and how tight will you spin it?Quote:
Originally Posted by gassersrule_196
You may want to take a look at these Vortec BowTie heads before you lay down the green for the Darts. You can use the Vortec or conventional manifold with them and use either perimeter or center stud valve covers.
http://www.superchevy.com/technical/...0511sc_vortec/