|
Author
|
Topic: Opinions on Scat 9000 series cast 408c cranks.
|
f100cleveland
Gearhead Posts: 505
From: St. James, MN
Registered: Sep 2004
|
posted 10-08-2006 08:23 PM
 
I'm thinking about makin the 351c a 408c over the winter. Since my block will end up being my weak link (I'm guessing), I want to run the cast crank incase the block lets go. Since my bores are still good, I won't be hard-blocking it either. The only changes made to the engine will be the rotating assembly. The cam is a 242/244 @0.050 custom MME hyd roller so I'm guessing 6500-6800 will be the max rpm. I'd guess for a hp it would be in the 500-550 hp range ??????? The engine will always be naturally aspirated and I highly doubt there will ever be any nitrous used and primary use will be street with an occassional blast down the strip. So under these conditions, will the series 9000 cast Scat crank and forged I-beam rods hold up fine? ------------------
1982 Ford F100 2wd Shortbox. Powered by a 357 Cleveland w/ stuffed closed chamber 4v's and a Funnelweb. Full Roller c-6 trans with Art Car trans brake, custom 4200 JPT converter, a Gear Vendors Overdrive and 4.86 geared Detroit Locker equipped 9" rear. 336.6 RWHP @ 7000 rpm and 358.2 RWTQ @ 4500 rpm.
1982 F100 351c 4v 1977 F150 460 Burnout Truck
|
kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
|
posted 10-08-2006 09:04 PM
With that small cam and those extra inches, I would bet it will be all done making power by 6200.
|
f100cleveland
Gearhead Posts: 505
From: St. James, MN
Registered: Sep 2004
|
posted 10-08-2006 09:27 PM
KV, thanks for the reply. I talked to Mark @ MME about it and the 6500-6800 rpm peak was kinda what he was guessing. The engine makes a peak right now on a chassis dyno from 6800-7000 rpm. But you've ran a lot of Clevelands and seen a lot of them run, so I appreciate your opinion too.------------------
1982 Ford F100 2wd Shortbox. Powered by a 357 Cleveland w/ stuffed closed chamber 4v's and a Funnelweb. Full Roller c-6 trans with Art Car trans brake, custom 4200 JPT converter, a Gear Vendors Overdrive and 4.86 geared Detroit Locker equipped 9" rear. 336.6 RWHP @ 7000 rpm and 358.2 RWTQ @ 4500 rpm.
1982 F100 351c 4v 1977 F150 460 Burnout Truck
|
kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
|
posted 10-08-2006 09:30 PM
Well, he knows way more than I do, so I would go with what he has told ya.
|
BLstangin
Gearhead Posts: 856
From: St. James, MN
Registered: Apr 2002
|
posted 10-08-2006 11:20 PM
Dustin I'm gonna say that scat 9000crank will work fine for ya along with the i-beam rods. That's what we run in our circle track car and I talked to a guy that wants me to build a new motor for his modified and that's what he used in his old motor and they spin 7,500-8,000 all night on alcohol. We got 50 nights on our motor and it's seen 8,200 and it's still together so it should be fine. ------------------
1970 coupe restored with the help of my dad. currently engineless, soon to be 427w dart block based stroker, lakewood bellhousing, 4-speed toploader, and 3.50 9" locker rear.
1986 f-150, 5.0, factory towing package with original c-6 trans
http://www.supermotors.org/registry/vehicles/detail.php?id=7794
|
cookie_monster
Journeyman Posts: 70
From: south, central, us
Registered: Nov 2005
|
posted 10-10-2006 10:00 PM
I have broken 2 crankshafts in windsor-based engines. First was a Summit 393 crank (made by SCAT...was cast right into the crank), broke at the finish line and luckily didn't spill much oil under the tires. 2nd one was just about 3 months ago (genuine 4.000 stroke scat 9000). I was HARD on both engines. The 393 was a high-winder on gas. The 415" was a 7000 max alky injected job. Both ran 6-teens and 20's in the 1/8 at 113. That said, I have also run a Scat 9000 crank in a 514 I had in a '83 F100 pickup. Great engine. I beat the living crap out of that thing for at least 2 years (probably 500 + passes), pulled the maverick all over the country, and drove it daily for the most part. I did this all in probably a 3 year span as I sold (actually traded) the truck in '99 when I bought my '95 F150. The 514 is STILL in the truck and STILL running great. I got my ass handed to me by my old truck the other night at the drags....and I was in my 03 Lightning. I sure miss that thing. Just like any other cast crank, they seem to be hit or miss. Only other time I've had a problem was 2 years ago when I had a stock stroke crank (3.5") that grenaded...but it was not the cranks fault. Yanked the main webs out of the block, but it eventually took out the crank too.
|
