Any recommendations where to go for reasonably priced 4 inch LS1 cranks? Everything I've found is pushing 2 grand. I'm looking to build a 383. Anything will help!!!

 

Not sure what your time frame is but the LS7 will have a 4" crank. It's got to be cheaper than $2,000. Not sure what the fitment issues are but someone probably knows.

I'm really waiting to see what SDPC can do with the LS7 parts (like they are doing with the 402 LS2s).

 

I thought the Z07 had a 4.125 inch crank? The LS1/LS6 blocks have to be ground down to fit that crank. I'm not entirely sure though............Anyone?

 

ls7 has a 4.125 bore and 4.00 stroke, hence 427

eagle 4" strokes are $999 from just about every sponsor.

 

Cool! Thanks for the info.

 

Any good recomendations on where to pick up some resonable cranks? Thanks

 

eagles about your only option; callies, lunati, and others are as you already know cost about twice as much.

like i said, you can pick up an eagle crank from just about any sponsor; TR, TSP, MTI, Tybrne, ect.

 

Is Eagle of decent quality? I'll look them up.......Thanks for the help.

 

there first batch way back had some issues but they rectified that and you'll find most guys running a 4" stroke are running the eagle one.

 

So far my forged Callies has been great, If I had of had the money I would have gone with a billet Lunati.

 

thats the point lol

what do you drive Elite? Im in Flower Mound

 

I have built motors with all three cranks listed above (Lunati, Callies, Eagle). For the money, the Eagle is very hard to beat for a quality crank in a street/strip application.

However, a good bit of care and time needs to be taken before assembly with the Eagle. Of the few LS1 Eagle cranks I have used, both the rod and main journals have a considerable amount of taper and out-of-round. Also, the manner in which the counterweights are finished poses a problem with alot of the off-the-shelf pistoins in terms of counterweight to skirt and pin boss clearance. My best advice is to purchase the entire rotating assembly from one company who has specific experience with this crank. HPE, for example, offers an Eagle rotating assembly with pistons and rods that work without any fitment issues. Just something to keep in mind when looking at the lower cost alternative.

Jason

 

seriously just find a rotating assembly already balanced or buy a short block already balanced.

NAte

 

You can shave another couple hundred bucks off a new eagle crank by searching ebay, theres atleast one guy selling them. If it were me, id buy from a sponsor just for piece of mind.

 

And there, dear sirs, is some good advice.

Thanks!

 

Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle Eagle

Put your money into the induction, not the crank.

 

This is what I'll do! You guys rock........... Thanks for the great info. I'll keep you posted on the outcome. There is a shop here who deals with strictly LS1/LS6's. I'll talk to him about the install. I'm sure he know's what to do. But I think I'm gonna buy the whole rotating assembly.

 

If your still looking for a crank I have them in stock ready to ship for $779.95 + shipping. Let me know if I can help!!

 

SLP uses eagle cranks in their 402/382 shortblock assemblies. mine is holding up quite well.

 

Hey I just checked at Summit Racing and they got a Eagle kit all forged with a 4" 4340 crank and 6.2" H-beams with forged flat tops. All balanced with rings

PN- ESP-B12804STD for $2600


Now I'm thinkin I'll stroke the LS1 for the Blazer