rotating assemblies

[Jarhead79]

I've heared about scat, and eagle, what are some suggestions on a 383 stroker kit rotating assembly. I've got a two main seal block and getting the machine work done. Just can't decide which to go with. Have heard good and bad with both.

 

[74 Shortbed]

I'd go with a Scat, all they're machine work is done in house and it's quality, unless they've changed Eagle's machine work sucks.

 

[Jarhead79]

Looking at something like this possibly.
http://www.northernautoparts.com/part/ek-ek1803c#options
Or this
http://www.northernautoparts.com/part/ek-ek1921

 

[74 Shortbed]

Speed Pro has always been good stuff used a lot of it, gotta be careful with those pistons though, they are strong but brittle they don't absorb shock and detonation will turn them into crystals quick seen quite a few like that, and ring end gap is very critical..

 

[Jarhead79]

Wondering if the pistons could be upgraded

 

[74 Shortbed]

You'd have to call them, some places will and some won't??..

 

[crazy4offroad]

I have this on my wishlist, mainly for the forged crank and rods...
https://www.summitracing.com/parts/esp-10623030

 

[74 Shortbed]

That's an Eagle crank, make sure you measure the crank real close..

 

[crazy4offroad]

Naturally. Mic the journals, snap-gauge the bearings, and if everything checks out, plasti-guage the assembly. Then check end-play.

 

[MikeB]

I used a $600-something Eagle balanced assembly for my mild 355, and I know a guy who has used their similarly-priced 383 kits with zero problems. However, it's probably not something I'd use for frequent visits to 5500 RPM.

For a high RPM engine, I think the SCAT stuff is better, especially if you use their 9000 crank. I'd also recommend bushed rods and pistons with floating pin retainer clips. My Eagle kit has pressed-in pins, but at least Eagle did that for me, and they were perfectly centered.

 

[74 Shortbed]

Eagle and Scat raw forgings all come from the same foundry, it's the machine work that makes the difference.