Marine Carb Selection - Page 5 - 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
  #61 (permalink)  
Old 03-06-2011, 03:20 PM
done learning, done living
 
Last photo:
Join Date: Feb 2009
Location: Middle of the Mitten
Age: 28
Posts: 1,420
Wiki Edits: 0

Thanks: 99
Thanked 55 Times in 50 Posts
the crank is a scat 9000 1 piece rms with 5.703" rods. The crank has the file number stamped on it from being balanced. When the engine was balanced the shop had the crank,rods,pistons,flexplate,and balancer so I am sure everything is correct otherwise it would have never passed the balance, right? The engine was in my truck for about a year and ran very smooth with no vibration at all.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #62 (permalink)  
Old 03-06-2011, 03:22 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 595 Times in 545 Posts
Quote:
Originally Posted by crussell85
the crank is a scat 9000 1 piece rms with 5.703" rods. The crank has the file number stamped on it from being balanced. When the engine was balanced the shop had the crank,rods,pistons,flexplate,and balancer so I am sure everything is correct otherwise it would have never passed the balance, right? The engine was in my truck for about a year and ran very smooth with no vibration at all.
You are good to go. I had thought this was an untried engine.
Reply With Quote Quick reply to this message
  #63 (permalink)  
Old 03-06-2011, 03:23 PM
done learning, done living
 
Last photo:
Join Date: Feb 2009
Location: Middle of the Mitten
Age: 28
Posts: 1,420
Wiki Edits: 0

Thanks: 99
Thanked 55 Times in 50 Posts
Well, I am still trying to figure out if the flexplate is a 350 flexplate and I can run the flywheel from the 305 on the engine?
Reply With Quote Quick reply to this message
  #64 (permalink)  
Old 03-10-2011, 08:11 PM
OLNOLAN's Avatar
Registered User
 
Last photo:
Join Date: Apr 2009
Location: Louisiana
Posts: 1,004
Wiki Edits: 0

Thanks: 209
Thanked 63 Times in 53 Posts
Flywheel

Hey C, Did you ever figure this out? I did a bit of looking around, I've got a 97 vortec 350 sitting in cold storage so I was curious about the 383 conversion. If you goggle (18)35003 you find your flexplate with the external weight. It seems your 383 is external balance if it has the scalloped flywheel and the weighted flywheel. If the 305 flywheel has the weight boss just like your flexplate I (think) you're good to go. They seem to have more ways to balance this combo. Neutral balance front of crank adding mallory to the front crank throws with neutral balance harmonic damper, mallory too expensive to do the rear, so add a weighted flywheel/flexplate. Or weighted front and rear with drilling the crank for perfect balance.

If you post this question to the pro builders, with a thread title on 383 balancing, I'm sure there is someone here that can validate it. I want to know for sure too. olnolan
Reply With Quote Quick reply to this message
  #65 (permalink)  
Old 03-11-2011, 04:28 PM
done learning, done living
 
Last photo:
Join Date: Feb 2009
Location: Middle of the Mitten
Age: 28
Posts: 1,420
Wiki Edits: 0

Thanks: 99
Thanked 55 Times in 50 Posts
Here it is Balanced 383 Rotating Assembly, Have some questions?
Reply With Quote Quick reply to this message
  #66 (permalink)  
Old 03-20-2011, 01:46 PM
done learning, done living
 
Last photo:
Join Date: Feb 2009
Location: Middle of the Mitten
Age: 28
Posts: 1,420
Wiki Edits: 0

Thanks: 99
Thanked 55 Times in 50 Posts
I have cam to the conclusion that I am going to run the 383 with the flexplate. I talked to a few different guys around my area that told me I should be fine running the flexplate.

On to the next question. I plan on running this:

383, 4.030 bore 3.75 stroke
Brodix -8pro cylinder heads http://www.brodix.com/heads/-8.php
Edlebrock Performer RPM Air Gap Intake Manifold
Stock Exhaust
Camshaft: http://www.cranecams.com/product/car...detail&p=24200
Static Compression Ratio is 10.3:1
Dynamic Compression Ratio is 8.59:1

The boat has a stock Holley 2barrel 500cfm carb. Will this be enough carb to feed this engine?

Last edited by crussell85; 03-20-2011 at 02:07 PM.
Reply With Quote Quick reply to this message
  #67 (permalink)  
Old 01-31-2012, 08:54 PM
done learning, done living
 
Last photo:
Join Date: Feb 2009
Location: Middle of the Mitten
Age: 28
Posts: 1,420
Wiki Edits: 0

Thanks: 99
Thanked 55 Times in 50 Posts
I am trying to fix some mess ups during these winter months trying to get it ready for summer. I know I have asked a few times about this but I am still looking for a cam selection and a carb choice. I think I have the cam chosen but the carb is still up in the air. I am currently running a Holley 4160 600cfm. I have been told by several people that the carb is on the very small side for a 383. I am looking at the Holley 4150 750cfm double pumper http://www.summitracing.com/parts/HLY-0-80537/ or the Edelbrock 1410 http://www.summitracing.com/parts/EDL-1410/. I'm not sure which one I want or which one is better/easier to tune.......etc.
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
carb selection for a chevy 355 small block pds23 Engine 3 07-21-2008 05:55 AM
Lean problems with BG Speed Demon carb Sixtyninemercury Engine 29 04-16-2008 08:02 AM
Carb Selection - Help Needed S10 Racer Engine 2 04-13-2008 09:53 PM
HELP cam, intake and carb selection? sniper4570 Engine 5 01-15-2002 08:16 PM


All times are GMT -6. The time now is 05:34 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.