A little more torque on the bottom end, and the hp peak moves down about 250rpm.

 

I'm sure it's just lack of knowledge and the rarity of good 428 cranks. By lack of knowledge I mean that alot of people dont understand that a 390 truck piston on a 428 crank makes a 410. It seems like it should be harder than that. The rarity of cranks is really a thing of the past now that Scat has a selection for the FE.

-Scouder

 

Shoot, you can buy 'em at DSC for $400.

 

Scouder and rusty, i don't want to steal this thread but you posted Scat cranks. Question i have is it ok to run their cast crank vs a forged one on a 4.25" stroke street motor? Big dollar difference. This will be run hard but not a bracket or drag engine. Carl....o&o>..........

 

I think the cast one will be fine. I just wouldn't run nitrous or a blower with one.

 

The jump goes from cast to billet. There is no company making a forged crank for FE. The cast cranks are good enough. Keith Craft has built some big inch FE engines using them. I used billet on my 511 because I wanted to use nitrous, and was shooting for 700+ sea level horsepower even without it. If I weren't, I would have saved the 2000 extra dollars and used cast.

-Scouder

 

Rusty, thanks again. I looking at building a 482", MR heads, F-427 intake. I would like to get 425 HP, 590-605 TQ ( magic 600 tq would be great) and not turn over 54 or 5,500 revs. In the past on the 410's i've built the compression rings were 5/64" wide, now everything is 1/16". On a long running street motor like i use what's the ring life vs the old 5/64" ring? With 5/64" i run hard at times and get over 250,000 mile plus ring life. Will open new thread as i have more engine questions, the Dynosims making more questions. Carl..o&o>..

 

So, I'f I were to turn mine into a blower motor I'd need a better than factory crank????