Which crank for rebuild??

[GooeyGus]

So i'm rebuilding a 1990 GSX that I picked up a few days ago.

I've decided to go with weisco pistons and eagle H beam rods, but the verdict is still out on the crank.

At first I was thinking of just using the stock 2.0L crank, but then I saw the prices on the new eagle cranks

I think the 100mm stroke crank (does 100mm stroke = 2.4L?) is only around $600 or so.

My question is: Does anyone have experience with the eagle cranks? I've heard a few stories of people breaking cranks on stroker motors, but I think these were using 4g64 cranks rather than the eagle crank.

My goals aren't huge, but I want a really strong foundation in case I decide to really put down some power in the future. For now I'm just looking for reliable 12's, but I love the torque of the stroked 4G63's (my brother had a 2.3L with an FP3065... fast!!!)

Do I need to use different rods with the stroker crank or can I just use factory size rods? What about pistons?

Thanks!!

 

[josh38127]

go to thedsmgraveyard.com they can help with many questions. I think you should go with a MANLY crank. they offer a lite weight crank rated up to 400hp

 

[jrohner]

Just get an OEM 2.4 crank. They've handled over 1000hp easily. Your transmission will HATE the torque though.

 

[LiquidX]

Stock is a exceptional choice for a crank. It holds power VERY well and most builds consist of a stock crank. I belive most of the stroker builds are with Eagle cranks but the stock 2.4 crank (spyder?) will work just fine.

 

[GooeyGus]

I know a stock 2.4 crank will be strong enough, just like the stock rods and pistons will probably be strong enough for my current goals. I guess I just want this thing to be bulletproof for peace of mind as well as goals I may have in the future. Right now I can't afford to maintain a 10 second race car, but in the future it would be great if I could just throw on a huge turbo without having to worry about the bottom end.

I would go for the Manley crank, but it looks like they are only being made for the 7 bolt motors right now.

That being said, does anyone know how the oem 2.4 crank and the eagle crank compare? Is the eagle crank significantly stronger ?

 

[rlacasse1]

From my research and bumming of information.

Using a 2.4 crank will only yield a 2.3 so you have to bore your engine out to get up to a 2.4. And with the 100MM crank you will have to use rods and pistons designed specifically for a stroker. The stock will no work, at least that is what I am told. As for what crank will work, if i'm not mistaken, you will need a crank from the g4cs if you have a six bolt engine. the 4g64 is for a seven bolt. Anyway find the crank out of a 89-91 sonata.

 

[GSXeclipsePSI]

Stock is a exceptional choice for a crank. It holds power VERY well and most builds consist of a stock crank. I belive most of the stroker builds are with Eagle cranks but the stock 2.4 crank (spyder?) will work just fine.

+1

 

[GooeyGus]

I already have a full stroker crank from a g4cs sitting in my garage with bearings and everything.

The problem is the crank was ground and would need to be re-coated (nitrited?) before I would feel comfortable running it.

I'm guessing for the amount of money/work I would need to do to my 2.4 crank, I could just have an eagle crank and feel much better about it.

Plus with a brand new crank I dont need to worry about getting it machined, which is another bonus.

I guess at this point I'm leaning towards the eagle 100mm crank, but I would still like some feedback from anyone who has built a motor using one.

I'm hoping to have this car on the road by June, so I need to start buying parts asap.

 

[red1993gsallmt]

a stock 2.0 crank is a great crank as long as it hasent been cut. 2.4 cranks are goot but the throws dont overlap as much as a 2.0 crank so they arent as strong as the 2.0, but they have seen as much as 600hp on daily driven cars. as far as rods go you can use stock rods with a 100mm crank but you need Stroker pistons. If you have to have a crank cut just get it done by a very good shop such as mr. crankshaft in ny