Ferocity02

iTrader: (60)

I am looking for rods and crank for a 427 motor. First of all, I found an Eagle 4" crank at SDPC, but I am not sure if it is the right one. The part number doesn't match the part# from other places. Its close, just some extra zeros. Can anyone confirm that this is the correct crank? It says it comes with a reluctor ring which I assume I need. Here is the link to it: http://www.sdpc2000.com/catalog/4191...Crankshaft.htm

As for the rods, HPE said that the Darton sleeves might need to be ground down to clear the rods, since they are longer than the OEM sleeves. My question is, will I-beam rods provide enough clearence? From what I can see they look a little thinner than the H-beam style rods like Eagle, Scat, and CompStar.

Thanks for the help!

2001CamaroGuy

iTrader: (6)

I personally kept the stock crank, nitrided it, and used Eagle 6.300" rods......couldn't be happier (though it's 388CIs, not 427).....


IF I had wanted to go 427 (which I did look at but just really wanted the big bore/short stroke), I would have used an Eagle 4" crank with Eagle 6.125" rods (Eagle stuff has gone to the 800-1000rwhp range in the Stang world....).......it really depends on how much HP you are looking for....

Ferocity02

iTrader: (60)

Ok, I actually specified which crank I was planning on getting, I realized that I didn't put that in the post. Anyways, I am looking at the Eagle 4" crank, but am not sure if that is the right one at SDPC, I can only assume it is.

As for the rods I need some that will clear the sleeves. Pretty much any rod on the market will suffice for my power goals, except for the stockers and maybe the Scat I-beams.

Wet 1

iTrader: (4)

I have a Sonny Bryant 4" crank in perfect condition if you're interested, it was just checked out by SDPC. As I'm sure you know, Bryant cranks are about as top of the line as you can get (it was $4500 new). It is so damn impressive it's a shame to hide it in an engine!

I've never advertised it but decided today I'm going to sell it. If you are interested send me a PM.

Ferocity02

iTrader: (60)

Actually I have never heard of Sonny Bryant. I did a search and very little came up. PM coming your way.

DavidNJ

I believe he specializes in race motors. If I recall some of the mid west sprint motors that run around $40k.

Anyway, you need decide budget and use. Street use and limited budget, an Eagle kit is probably fine. Serious racing? I would call Callies, Crower, etc about a custom bottom end.

They will build it to your specs. A 4.125 block could be a 356 to a 441 depending on stroke. If you are getting a new crank, rods, and pistons anyway,they will get you what you need for your application and balance it better than you can. If you ask, you can get a no-holes balance. Since they are making the crank, when they balance it, it is rough cut to the very close to the right balance for your rotating assembly.

If you are going that big, you also need to consider the heads. Chevy went very big on the heads for their 427. My guess is a lot of the non-FI big cube motors run out of breath.

Ferocity02

iTrader: (60)

All I need to know is what rods to get to clear the sleeves, and if that crank from SDPC is the correct one, even though the part number doesn't quite match. Everything else is taken care of.

Beast96Z

iTrader: (21)

Mike, the sleeves are already clearenced for the rods. There was a stroker kit in it, remember?

Ferocity02

iTrader: (60)

It was clearenced for I-beams, do you think H-beams will clear also?

Beast96Z

iTrader: (21)

The Lunati Pro- mods are I-beams? Who new??? I always though they were H?

Ben R

I would use Eagle.

Steve - Race Eng

iTrader: (1)

The Lunati billet connecting rods will clear the sleeves with room to spare without any grinding with a 4" stroke.

Steve

Ferocity02

iTrader: (60)

Thanks for the help guys...

Now the final question that needs answering... is this crank from SDPC the right one for my application? It is in the LS1/LS6 section, but the part number on the crank does not quite match that of other vendors for the same item. Again, here's the link... http://www.sdpc2000.com/catalog/4191...Crankshaft.htm

Thanks!

Beast96Z

iTrader: (21)

Although your link dosen't work, I went to the site and looked under LS-1 cranks. The eagle is on the page with the Callies and Lunati. SDPC had the same part # as thunder racing, so I would guess that it is the right one.

Ferocity02

iTrader: (60)

Fixed the link.

I didnt think the p/n was the same, maybe I misread. I'd imagine it would work, why else would they put it in the LS1 section. It sure seems awfully cheap, thats the main reason I was concerned.

Beast96Z

iTrader: (21)

That's the same price I got from another vendor.