SBF Balance question.. Neautral... 28.. 50..

[SSDiv6]

Originally Posted by Stephen & Horace Johnson

I have not had any issues with scat or eagle in my engines or the ones I have built for others ... maybe I was just lucky .....good luck

Stephen,

It is touch and go with Eagle and Scat. I have heard that Eagle improved their machining, but some issues still linger. The last two Scat crankshafts I used, required rework.
Still, if a replacement crank is available from Molnar or Callies, that is the way I prefer to go. Everything I get from Tom Molnar is right on the money. Tom was the guy at Oliver Rods for many years and the quality of his products is outstanding and he stays behind his products.

[HawkBrosMav]

Originally Posted by SSDiv6

Stephen,

It is touch and go with Eagle and Scat. I have heard that Eagle improved their machining, but some issues still linger. The last two Scat crankshafts I used, required rework.
Still, if a replacement crank is available from Molnar or Callies, that is the way I prefer to go. Everything I get from Tom Molnar is right on the money. Tom was the guy at Oliver Rods for many years and the quality of his products is outstanding and he stays behind his products.

Not sure if it's actually enforced, but being a stocker only the Eagle and Callies cranks are legal... looking at Callies it doesn't even look like they produce the stock legal crank any more. I've run Scat stuff in all my bracket car motors with no issues. I agree all the eagle stuff I've ever bought needed to be turned to use it.. at this point I think we're just going to stick with a stock crank at 50 oz. on our budget with our performance goals it doesn't sound like this is really worth it.. we'll focus on other places to better invest our money that may be worth something as we know there are places elsewhere in the car that could use some attention. This was more of an opportunity presenting itself type situation ha

thanks for the input all

[RJ Sledge]

Brad
In your Combo a nice well prepped OEM crank will work great at 6500 rpms. Cryogenic treatment helps but it’s not a must.

Eagle steel crank 3.00 stroke neutral balanced turning 8800 for 2 years now with no issues.

Good luck.’
RJ

[Ralph A Powell]

I ran a Boss 302 crank stroked to 3.25. Pin width was 1.820 @ 2.00 dia. BME Aluminum rods 5.35 length big end width.900. Assembly was 100 percent internally balanced with a Fisher damper. Ran this combo to 9500 rpm for 3 years with no crank or Block problems. Block was a Boss 302 ( D1ZE- B service block. Bore started @ 4.030 and ended up 4.080.