for about a grand in Summit Racing
it's cast- how far would you trust a cast 383?

 

i seen those kits go for 450hp on motor in cars.. i think thats as high as i would go. i think cast cranks are usually fine for power, it just the rods and pistons that may fail.. so if you have strong rods and pistons, a cast crank should make lots of power

 

Its a cast crank but not cast iron. It is made of some higher grade alloy. So it is much stronger than a stock cast crank.

 

cast alloy crank, forged I beams and hyper pistons?

Should be good to 450HP or more.

I figure the crank is worth ~$300, I beams $250, and pistons $200, if you bought them all seperate. So I'd hope their premium parts for that price, or you're getting more then just those parts.
balanced together?

 

They are balanced, yes. I want to avoid having to "get" them all balanced just because I hear thats expensive.

 

i bought all my parts separately.

crank $500 used(2 drag runs)
foged rods $250 new
Hyper Pistons $75 shipped(later upgraded to forged but they were $75 shipped)
Balancing $125 at the machine shop.


eagle is overpriced IMO...

My crank is also forged and nitrided....

balancing is cheap enough!

 

How cheap?


What's more important? Forged pistons or rods? Crank is last from what I understand...

 

I can't remember my total bill, but I can tell you it cost me $90 in heavy metal to have my kit internally balanced. I used TRW forged pistons, speedomotive 4340 forged rods (i beams), and eagle 4340 forged 400 externally balanced crank. It was still actually cheaper for me to buy the 400 crank, pay the $100 to have it cut to 350 mains and internally balanced at the time over buying one right from Jegs. Back then the prices were $600+ for the 383 4340 ESP cranks.

 

I'd take slugs over the rods - as long as good rod bolts are used.

 

You'd have to look pretty hard to find a set of rods that aren't forged.

 

look into ohio crankshaft, their stuff is a really good deal. I think they can balance some stuff for you before sending it to you also.
remember, *cheap* forged pistons (ie truck stuff, or just any cheap brand forged pistons) are heavier, which is a bad thing, and if it means they have to use heavy metal when balancing, it's more $$$.
my machinist told me it was $300 to balance, if no heavy metal was needed. So I didn't.

 

Heavy metal isn't always needed to balance heavier pistons. A new crank may already have heavy counterweights that can be drilled, or a used crank may already have balancing holes drilled that can be filled in with a steel slug.

 

If you are going to spend $1000 on a non forged bottom end you may want to look into the Engine kits from Doug Herbert. I went with the 383 pro -street kit. Scat nitrided 4340 forged crank, wiseco forged pistons, 4340 forged "I" beam rods, plasma-Moly rings and clevite77 bearings. For $1359 it seems to be a very strong kit. The extra $359 is good insurance and will give you piece of mind knowing you have a forged bottom end. IMO eagle is overpriced

 

the eagle kit also comes with a balancer, flexplate,rings and bearings for that price not too bad of a deal. i was considering gettin one for my T/A

 

 

Eagle's site says that the crank is good to 500. I know its just a number, but balanced it should hold all of that, maybe more.

 

What do you want to do with the motor? How much compression are you going to run? If you're building a street/strip n/a pump gas motor with not a ton of compression you don't need to spend the money on forged pistons. Hypereutectics are just fine.

For what they are, Eagle kits and parts in general are priced very fair. They hold up very well.

 

My crank had already been balanced once before, i didn't get cheap forged pistons, for this reason, my 6.2in rod's were also a bit heavier. No heavymetal was needed for balancing if you do it all correctly.

as the saying goes
"cheap prices come to those who wait"

my engine swap parts pile started a year or more ago. EBAY IS YOUR FRIEND!!!!!!!!!!!!

I got my set of moly rings for $40.

Only the externally balanced kits come with flexplate and balancer.

86+ one piece rear main seals are externally balanced on the rear side.
383 kits come with flywheel and flexplate
85 and below dont however, notice the price difference!

 

And you get what you pay for.

Seems like everyone wants to save a buck, but when the car makes no power and runs 14's they want to blame it on the parts.

 

I run an Eagle Cast 383 Crank, Eagle H beams and Hyper pistons. been to 6700 a few times on the dyno with no problems and also put down some good numbers. Its how the engine is built and balanced that can also effect reliability.

 

take a wild guess what brand parts i have also.... you wont believe it, they were all boxed... except the crank, 2 drag runs...
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i'll give ya a hint, speed pro powerfoged pistons, Eagle "esp" h beams, crank was something like a sledgehammer or something, most expensive item i bought...


all were great deals i couldn't pass up.