460 Ford Forum banner

1 - 1 of 1 Posts

·
Premium Member
Joined
·
1,204 Posts
Discussion Starter #1
I just talked to a guy from Eagle Specialty Products yesterday. He said they will soon be selling two models of the 460 cranks. They will both be cast steel (stock was cast iron). Not forged steel but still a sturdy crank. One will be 3.850" (stock 460) stroke. The other will be 4.140". He said these cranks will each sell for $399. He was unsure if they were internally or externally balanced. Obviously these cranks don't have as long of a stroke availability as the Scat cranks (4.150", 4.300" & 4.500"), but they are about ½ the price. Just thought this might be of interest to some of you.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Author Reply
Alvin
(no login)
24.11.186.48 Eagle Cranks
No score for this post December 5 2000, 9:12 AM

I found out about the cranks yesterday also. This is truly good news for big block Ford people. The only problem that I have, is that it has 2.200 rod journals that require aftermarket rods. If someone made a crank with stock 2.500 crankpins and pistons with the correct compression height that would allow the use of stock connecting rods, this would really put cubes into the hands of the masses.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Mike R.
(no login)
32.97.239.33 Eagle Cranks
No score for this post December 5 2000, 10:31 AM

Yeah I agree. Just to clarify. The 3.850" stroke crank has 2.5" journals and the 4.140" has 2.200" as you mentioned. So I would assume they pretty much start with a stock 460 crank casting (except steel instead of iron) and it probably doesn't allow for 2.5" journals on the stroker. That's just a guess. The Ford motorsport crank (made by Scat) is available with 2.5" journals but it's $799 and requires an externally balanced flywheel and counterbalance so it's not exactly cheap if you're a tightwad like me.

The nice thing about this crank is that I have now found all the parts to have new steel crank, steel H-beam rods and forged stroker pistons for $1300. This should make for a pretty sturdy 512 cubic incher.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

RJP
(no login)
198.81.16.42 How 'bout this?
No score for this post December 5 2000, 1:04 PM

taking the Motorsport crank with the 2.5" rod journals and the 4.140" stroce and having it offset ground to 2.20" journal size for even more stroke. I don't know what that'll make it as I haven't run the numbers yet but just another possiblity.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Mike R.
(no login)
32.97.239.31 Scat makes that crank
No score for this post December 5 2000, 1:30 PM

Scat sells exactly the crank you're talking about for about $750-800. It has 2.200" journals and a 4.500" stroke. We're talking major cubes here. My hesitation is the added clearance issues as well as the added thrust it will put on the mains. But if you have everything prepared right you're talking about the possibility of 550+ cubic inches.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

RJP
(no login)
198.81.17.36 Still a hellofalot cheaper than
No score for this post December 6 2000, 12:41 AM

A billet crank from one of the custom crank mfgs. I had a 460 crank made by Moldex at a cost of $1650.00 about 3 years ago and had to wait over 5 months for it.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Alvin
(no login)
24.11.186.48 Not Complaining
No score for this post December 6 2000, 7:13 AM

I'm not complaining, but only commenting on building costs compaired to brand C motors. This crankshaft is the first real step toward making big block Ford power affordable. Once other component costs fall in line, Ford people will no longer have to pay extra for the privilege of driving Fords.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

RJP
(no login)
198.81.17.41 I'm not complaining either
No score for this post December 6 2000, 1:43 PM

Thats the price one pays to play with Fords. Although I never had any probs with an iron crank, I went to a steel crank for peace of mind. Every time I went to step on the throttle that "little voice" kept telling me that I'm leaning on a 2 bolt block, iron crank and stock rods, as a result I never "ran it out the back door" This is in an 18' flat where an engine failure can be a death sentence.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Steve
(no login)
209.140.201.93 Dont worry
No score for this post December 8 2000, 8:36 AM

They say the only real worry over 500 HP is rods (even CJ/Truck type rods) and rod bolts. They say iron crank, due to massive 2.5" and 3" journals, are good to 600 HP easy, and the 2-bolt blocks, dont even worry about them. They're built like brick houses. General rule of thumb as I see it is this: Stock CJ rods take 500 HP limit, Cast iron crank (uncut) 650 HP and 2-bolt blocks 750+ HP.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

RJP
(no login)
198.81.17.32 Damn...I must be good to 1000 H.P.
No score for this post December 8 2000, 7:43 PM

Steel 4 bolt splayed caps, Moldex crank, Crower steel rods and JE pistons....No overkill here!

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Chris C
(no login)
208.6.240.153 Stock Rods
No score for this post December 5 2000, 2:21 PM

I agree that it would be nice to reuse the stock rods, but then wouldn't you end up with a lousy rod/stroke ratio. Also, strokers usually side-load the rods quite a bit so the stock rods would now be a weak link, stock stuff may not be cheap in the long run.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Alvin
(no login)
24.11.186.48 Stock Rods
No score for this post December 5 2000, 4:40 PM

The rod ratio would be no worse than the Motorsport 514, which uses stock rods and a 4.30 stroke. This motor makes 600 horsepower and and has passed numerous durability tests.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Chris C
(no login)
208.6.240.153 Ford 514
No score for this post December 6 2000, 3:36 PM

I thought about that setup too. I know it has to pass ford's durability tests but I've heard from some sources that the stock rods let go if you twist the motor to its true power peak. The 600hp figure isn't even the peak number, apparently Ford just doesn't want them twisted any higher.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Mike R.
(no login)
32.97.239.14 Ford 514
No score for this post December 6 2000, 4:12 PM

I'd tend to agree. Which rods to use has been something I have been putting ALOT of thought into. The 514 crate engine uses the stock marine 460 rods. The dyno tests I've seen show the 514 being run up to 6000 RPM on the dyno. If I were building a 514 that was only going to peak at 6000 RPM I would'nt have a problem with the stock type rods. Rods are generally the weakest link in high RPM engine. Considering the added stroke that these engines have and the fact that I want to turn 6500 RPM, I think I'd be nervous using stock type rods to turn that many RPMs. I've found the H-beam type steel rods for $400 and I think that will be a pretty good investment.

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Fred R
(no login)
207.229.2.238 Untitled
No score for this post December 7 2000, 2:16 PM

What is the difference between stock 460 truck rods,SCJ rods and marine rods?

Score 1 2 3 4 5 (5=Excellent) Edit Message Delete Message Lock Thread Respond to this message

Mike R.
(no login)
32.97.239.27 Rods
No score for this post December 7 2000, 4:28 PM

The cj and truck rods are very similar and as far as I can tell the marine rods are also that same style. The marine rods on the 514s are bushed for .990" pins however.
 
1 - 1 of 1 Posts
Top