Indy SR's Vs Edelbrock 440's?

[6 packin]

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

[b-1ken]

Originally posted by 6 packin
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,
www.indyheads.com

Indy SR heads have 270 cc port volumes? Are you sure you mean the SR (Stock Replacement) heads and not the 440-1 heads?
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!

[Kevin Garceau]

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.

[d.friction]

how do b-1 bs heads fit in with these two?

[DartGT66]

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.

[b-1ken]

Originally posted by Kevin Garceau
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.

Kevin, let's be fair here. That's with Alky and fuel injection.

[gsmopar]

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:

To steal an advertising line from another company....You can buy the Edelbrocks now.., or you can buy them later!!

I've cracked 3 Sets of 906/915 heads over the last 8 years of racing..and it's not fun having your machinist tell you that a head you spent 1000$ worth of port work on is junk!!

The Edelbrocks were an absolute godsend for the budget racer/street enthusiast who wanted: 1. A reasonably priced Aluminum head 2. A product that allowed him to re-use his rockers, intake, Headers, Valve covers, ETC. 3. Improved performance... out of the box. 4. A durable, user friendly, piece with exellent, fit and finish.

IMO The Edelbrock Head is the single best performance upgrade currently available for a B/RB engine you can make...Pound for pound, Dollar for Dollar.

I Bolted them on a 440 with a 312/590 MP solid, after cracking one of my 915's...all I did was add the inner springs from a set of wore out 077MP springs to boost the pressure of the Edelbrock springs...and put them on, just as they came...I picked up .15 and 2 MPH over the PORTED 915s. 7 passes later I smacked the 440 with 400 HP worth of Nitrous and broke a stock LY rod at 1100ft and coasted through on a 9.23@142 pass!

Next I built an 11.5 440 with ross pistons, BME aluminum rods, and a 304/640 ultradyne solid cam. The Edelbrocks required a .010 shave to clean up the damage where the piston came up and hit after the rod failure, and replacing 6 valves which got bent in the carnage. My machinist did about ten hours of "slight cleanup" to the ports, and we added Crower springs, and MP Titanium Retainers. Bolted my Isky 1.5 Ductile Iron rockers back on with my M-1 and Dominator, and 2 1/8 headers...and were back in the game!!

That was 10 months ago, I've got 121 passes on that combo in my 2875lb Challenger...with a best motor pass of 10.02@132.4, and a best NOS pass of 8.96@147.6. Not too shabby for a "street head" that cost 1200!!!!!!

My brother's car is a half second quicker on the motor with a Indy 440-1/Roller Cam/ 504 cubic inches low deck stroker!!!!!!! Do the math, I think $$$/performance...My Eddie combo is doing a better job!

[d.friction]

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.

[gsmopar]

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

[MoparBilly G]

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.

[6 packin]

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

[MoparBilly G]

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.

[Scott Brown]

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

[gsmopar]

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