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Indy SR's Vs Edelbrock 440's?
Ok I want to build a engine with around 575-600 horses. I was wondering if it could be done with a Edelbrock head, this head of coarse will not be ported, (not much to gain). It will be going on a fresh 440 engine with around .600 inch lift. The indy's have a clear advantage over port volume which what builds big topend power. The eddys have a 210 cc intake volume which is very common to find Chebby racers small block heads with that much volume. The Indys have around 270 cc intake volumes, and will except stock valve train. But the runners/exhaust has been moved both 3/8 up and out ward. looking at this info I suprised that the big block 440 engines run so good given such puiny heads from the factory.
Just wondering how fast someone has gone with the Eddy's. I would rather spend the money now and build a 550 horse engine with not much room for gain on the eddy heads, but with the Indy heads they will support over 650 horses. But bla.......bla....bla. I have seen stock cast iron head engines run awful good. The Indys are twice as much, but probably looking at only 30-40 horses if that over the eddys. I would like to hear some hard facts. www.indyheads.com
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68 Coronet 69 Super Bee......new 500 cid comin soon! 73 Duster witha missing 440/727 |
#2
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Re: Indy SR's Vs Edelbrock 440's?
Quote:
O.K. I just read their web page and they say 265. That's pretty big for a Stock Replacement head. I used to port the crap out of stock 440 heads and those barely made 200 cc's! |
#3
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Hell I dont know. I run 9.7s in a 2850lb car with stock steel heads that never been on a flow bench. Have chevy valves in it thats about it.
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how do b-1 bs heads fit in with these two?
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Indy (both SR and the others) heads have longer valves and raised ports. The head is wider than a production head, so despite of the raised intake ports you can use stock width intakes. The intake spacer needed with Stage VI's, not needed with SR's, is 40cc. The Stage VI's have stock length vvalves and very low bowls & short side compared to SR. So, the port cc's are not quite comaparable, but the port window is pretty close the same, except that SR's retain the same window all the way. 600 hp can be had with both heads, the SR's have more room to grow in the future.
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Quote:
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#7
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PM "Mopar Billy G." I think he's run 9's on unported EB's in a '70 Challenger!
Later, Greg Quoted Mopar Billy G from a closed thread titled "Edelbrock Heads" about a year ago: Quote:
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#8
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wow I mean WOW
I went to the web sight to and WOW 2875lb WOW 8.96 on the track with a 6 point cage WOW No flame but I am amazed. |
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The quote is from Mopar Billy about his Challenger, not NOT my 69 charger! Do a search for Edelbrock heads or search under his screen name to find the comment. Here is a video of his car:
Right Click Save As Video 2, Right Click |
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Thanks for saving me the trouble of re-typing my opinion, GSMopar.
I'm at 10.02-132 with my 70 Challenger at 2875lb 440 Jim has ran 9.90-134 with a 471 in a 3075lb 69 Dart Pro-Sport has ran 10.21-132 with a 451 in a 2970lb Dart Sport All of these are with solid cams. That should give people a pretty good barometer of thier potential. My Dad's Challenger has ran a best of 9.72-134 with a 440, Indy SR's and a solid cam at 2750lbs. It has also ran 10.62-125 with a solid cam 383 and Stage VI's While the SR's or the B1/BS may have more potential...they just flat out will cost you more in the long run...my opinion is this...build an Eddie head combo, and when you have wrung it out and still want more...jump to B-1s or 440-1s and a stroker. |
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Hey Billy G!
My car weighs near 3100 lbs. My engine in question is a new 440 +.030 with forged pistons running around 11:1 on pump gas, this maybe cutting it close. I would like to run 38 deg total advance. I already have a 284/528 solid cam and adjustable valve train setup with a torker II intake. this is my current car and setup. The engine is being machined over this fall. I will be running mostly 1/8th mile maybe a 1/4 mile time or two. I have a good ATI converter in use now with around 3800 flash speed. I would like to run a 4.56 gear and step up to a Performer RPM intake over the torker II. I would like to run the current cam (284/528) but would like to take more advantages of the eddy heads, maybe a 1.6 rocker ratio upgrade. should result in around .563 lift. But at over $200 for the Ductile iron rockers I may just upgrade to a Hughes fast rate solid cam, or custom racer brown. If I thought it would be worth 20 horses or more. But Im really not looking to go real high with dur@ 50 maybe in the 240's and .550 lift about what im running with a 1.6 rocker arm. I dont want to kill my 60 foot times. What would you reccomend? Intake and cam wise? Should I buy the rockers, or just have buy a new cam? I may spray this thing 100-150 shot in the future. Check out these pistons which were weighed at 890 grams compared to the stock 1020 gram ones. http://www.probeindustries.com/Pisto...ler_440_ft.htm they have the 1/16th race rings, I plan on going with Diamond medium tension ring set. I just want bang for the buck and have around $1600 to play with in extra's. Which will buy the heads, bolts, and what ever else that I choice. Like a new cam or intake. Most of my machine work and pistons, parts are payed for. this engine is a steel crank engine that will have a full balance job, and full groove bearings. Let me know what you guys think. BOb
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68 Coronet 69 Super Bee......new 500 cid comin soon! 73 Duster witha missing 440/727 |
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I definitely think Edelbrock heads, and a new cam, would be the best bang for the buck, in your situation. I like the Hughes high rate of lift cams.
I had a Hughes Hi-rate Hydraulic in my old, 915 head, TRW piston 440. It was 247/255 @ .050, .557/.570 lift on 110 lobe separation and ran best numbers of 10.67-124 on the motor and 9.64-137 on juice. It idled good enough for a street car and would rip your head off at 4800 stall-1.446 60ft Best. My Dad uses a .630 lift hughes solid in his SR 440. |
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440 Jim's car weighs 3150.
The Edelbrocks are a great bang for the buck. In addition to the combos Billy listed, I have a customer with a small roller cammed pump gas motor that runs 10.50's @ 127+ with a 10" converter and 3.55 gears. 3600 lbs and 499 CID. THey are ported and flow about 310 CFM peak. Good luck, Scott |
#14
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6 packin,
I have a 4.86:1 3rd member 742 case if you're interested. Might be fun on your 1/8mile runs. Later, Greg |
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