Question about crank quality, newbie of sorts. - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-11-2002, 11:54 AM
Registered User
 
Join Date: Jul 2002
Location: Houston, TX
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post Question about crank quality, newbie of sorts.

Hi!, As you can see this is my first post, but more importantly i am seeking some advice in an engine build up. My first to be honest (with the help of dear ole dad, veteran rodder of sorts)

Anyway, i did a search and only came back with one topic on cranks and their respective quality. What i am really looking for is opions personal experience with the different brands. Lunati is unfortuantly out of my price range. I was looking at some of the semi-lower cost solutions. Scat, Cat, Eagle, Cola... Help a newbie out .

Cubic Inch is still open for debate on the build up: 350, 355 or 383. Its a late model one piece rear main seal, 4 bolt main 350 chevy block.

As a side note, this may be a bit of a stretch for me, but my dad and i are looking to get around 500 hp out of our built up, N/A and then possibly adding a power adder. Thanks!!

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-11-2002, 02:39 PM
4 Jaw Chuck's Avatar
Hotrodders.com Moderator
 
Last photo:
Join Date: Mar 2002
Location: Manitoba, Canada
Age: 47
Posts: 5,112
Wiki Edits: 0

Thanks: 2
Thanked 120 Times in 95 Posts
Post

You can use a factory cast crank for the horsepower level you are seeking, as long as you don't run it into detonation for long. One thing to consider when looking for a remanufacturer is ask if they index the journals, if they don't go somewhere else. This one overlooked fact causes more little problems than you can imagine particularily on forged cranks which tend to distort more over time due the forging process. If you see how a crank throw being out 2 degrees one way and the other journal being out 2 degrees the other adds up it will be obvious how this can mess up a fine tune. I have ground cranks that were 5 degrees out from journal to journal, not unusual but not typical either. You don't want to be stuck with that one crank out of 20 that is really bad.

The manufacturers you mentioned are all good I would think but I have not had a chance to see their work, although Scat does make a good crank for the SBC from what I have seen. I wouldn't waste a lot of money on a forgings unless you were going circle track racing with it, a good reground cast crank indexed and with no taper on the journals will do just fine, if you want to spend some money have the journals micropolished and nitrided. That will give you the most bang for the buck.

Have fun!
__________________
Outlawed tunes from outlawed pipes
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-12-2002, 06:01 AM
Registered User
 
Join Date: Jul 2002
Location: Houston, TX
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Thanks!! Anyone else feel like unloading on a newbie Im all ears (well eyes, i suppose). Thanks again!
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-13-2002, 02:30 PM
deuce_454's Avatar
Member
 
Last photo:
Join Date: May 2002
Location: Copenhagen, Denmark
Age: 39
Posts: 1,000
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Post

unless your engine sees only track duty a stock crank is more than enough. if you are openminded on the displacement i would contact PAW and buy a 400 block and a steel 327 crank, it can be installed using the same bareings as when building a 383 in a 400 block. the trick with that engine is that you can use LOOONG rods in it, ford 300-I6 rods are 6.209 inches. Hot rod magazine did a build-up for 2995, and because of the long rods and subsequent long dwell, the engine ran 11:1 comp and made over 400 hp on 87 octane with a stock style LT-1 cam. with a hotter cam and better heads you should be hitting 500 hp easy..

only thing is that at that HP level i would have the crank nitrided at that power level.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 05:07 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.