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Oct 24, 2004 | 05:17 PM

#46

rusty70f100

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From: Iowa

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

Oct 24, 2004 | 05:29 PM

#47

Scouder

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From: Evanston, WY

Quote:

Originally Posted by rusty70f100

I'm surprised more people arent building 410's.

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

Oct 24, 2004 | 05:40 PM

#48

rusty70f100

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From: Iowa

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

Oct 24, 2004 | 06:35 PM

#49

"Beemer Nut"

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From: "Islander"

Scat in cast or forged?

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>..........

Oct 24, 2004 | 07:00 PM

#50

rusty70f100

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From: Iowa

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

Oct 24, 2004 | 08:21 PM

#51

Scouder

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From: Evanston, WY

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

Oct 24, 2004 | 08:50 PM

#52

"Beemer Nut"

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From: "Islander"

Cast crank and rings

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>..