Swaping jets & rods on my Edelbrock 650 - 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
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 08-11-2008, 05:05 PM
Registered User
Join Date: Jun 2008
Location: Vancouver BC
Posts: 14
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Swaping jets & rods on my Edelbrock 650

Hey guys I just picked up the rods and jets the manual recommends for leaning out my carb some. Question I have is: Whats the '395' engraved on the jets represent? Both the stock jets and the supposed leaner jets have the same '395' etched into them. Don't tell me these are the same after all!



Last edited by MyHooptie; 08-11-2008 at 05:10 PM.
Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 08-11-2008, 05:12 PM
Jmark's Avatar
Last photo:
Join Date: Sep 2003
Location: phoenix
Age: 63
Posts: 5,033
Wiki Edits: 0

Thanks: 124
Thanked 103 Times in 83 Posts
If those are the ONLY numbers on the jets, i'd have to assume they are the same. You can ck them if you have some numbered drill bits. (don't drill them, just ck the hole diameter! LOL)

Here is an Edlebrock jet/rod calculator but that number is not in it.

What about the rods? They may be a tad larger in diameter. If you have a mike, you can measure them. Sometimes they are just a few thou different.

Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-11-2008, 10:26 PM
mudcatdiesel's Avatar
Registered User
Join Date: Apr 2006
Location: Reno, Nv
Posts: 9
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Edelbrock stuff

All Edelbrock jets have the gratuitous "300" attached to them. A 395 means it's actually a .095 bore jet, a 401 means it's a .101 bore, etc. I don't know why, seems odd to me. Don't be discouraged, just return them, and give your metering rods a hard look. 7042 means .070 on the "low" side, (idle, light cruise), 42 means .042 on the heavy-throttle side. Do the math: You want to go leaner, get 7547's. The fatter rods have effectively decreased the size of your primary jets. Look at Summit's web-site for all the rods and springs, etc., Edelbrock offers. Go to Edelbrock's own site: all this data is there, free. It's an "800" call to speak to their techies, and they can be helpful. Remember, metering rods are a whole lot easier to change than jets. You'll find lot's of Edelbrock stuff on E-bay too. Best of luck.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-12-2008, 02:07 AM
Registered User
Join Date: Jun 2008
Location: Vancouver BC
Posts: 14
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the replies guys. The 3 prefix is what I figured. Seemed too coincidental that it ended in 95 and was supposed to be a .095. I'll admit I know pretty much nothing about rod and jet combos but that would prob explain why the damn carb was so rich right out the box. Some wacked combo of .095 jets with the stock 7547 rods. Anyways I wound up swapping the jets out anyways (wasn't sure if they were the same at the time) and threw in some 7347 rods. It made a world of difference! Much better!

Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


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
Vacuum advance western star Engine 14 11-30-2009 10:28 PM
detonation resistance, short or long rods? Old School Nut Engine 34 12-31-2004 12:23 AM
new rods or old rods? Blob Engine 12 02-03-2004 04:35 PM
600 Edelbrock on a little guy NathanK79 Engine 2 06-24-2003 10:26 PM
600 Edelbrock Jetting NAIRB Engine 1 09-23-2002 06:50 PM

All times are GMT -6. The time now is 05:00 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.