Hopping up a Straight Six - 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 01-19-2006, 09:31 PM
joker77's Avatar
Registered User
Join Date: Jan 2006
Location: NW Quebec
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hopping up a Straight Six


I have a 25" 1950 dodge straight six. I will be tearing it down and rebuilding. It has 97 horses at the moment, and I've got a few possibilities for increasing this, and I'd like peoples opinions on what to do, and why, and if possible the possible hp and/or performance increase.
I will be splitting the intake and exhaust, but have 2 possibilities on the intake, one with 2 one barrel carbs, and the other with 2 2 barrell progressive carbs. Which should I use? I'll be making sure the head and engine are straight, but would decking be worth it, and by how much? The dual exhaust will be going out the back without crossovers, and smithys. There is also the possibility of a rebore, and a cam grind that I've been thinking about. The engine has 60000 miles on it..... any thing else that anyone can think of?
Of course, this does not include switching engines (especially not a SBC, mopar will stay in mopar), because I want to keep the look of the old engine.... but I don't want to go 500 mph either.... speed is not the issue, just looks, better performance, sound....


Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 01-20-2006, 12:46 AM
HemmiGremmie's Avatar  

Last journal entry: 52 truck
Last photo:
Join Date: May 2002
Location: Chillicothe Ohio
Age: 49
Posts: 1,419
Wiki Edits: 0

Thanks: 4
Thanked 2 Times in 2 Posts
Straight sixes are great engines.
Try www.cliffordperformance.com for speed parts. And www.inliners.org for a good tech forum. Post pics if ya can. Hg
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-20-2006, 07:47 AM
jim..'s Avatar
That 6 Cylinder Guy
Last photo:
Join Date: Jan 2006
Location: yes
Posts: 273
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Hey Allan,nice to see another guy doing up a six,not too common anymore,but real good motors with great potential.
I'm in the final stages of doing a ford 300 six,bored .050,390 flat top pistons.crane valve train,roller rockers,clifford water heated intake with 650 edelbrock,clifford dual headers into dual exhaust,(no crossover),milled head .026,polished ported and gasket matched,all getting topped off with a 150 hp nitrous kit.
Not sure how your carb combo will work but the 650 4 bbl works very good on the 300,quite efficient with power when you need it.
The headers are probably the biggest bang for your buck,don't go over 1.5 inch pipes or you may lose some exhaust velocity as well as scavenging effect,bigger is not always 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
What do you think of a 63 straight axle Falcon? 63' Falcon Gasser Suspension - Brakes - Steering 23 12-19-2013 10:16 PM
Need to paint a very straight black car firechicken383 Body - Exterior 15 08-22-2005 01:49 PM
Pushrods: How straight is straight? ESteveK Engine 6 02-07-2005 12:20 PM
76 vette pulls left, then straight, then right! corvette jim Suspension - Brakes - Steering 12 10-17-2004 09:20 PM
how straight is straight enough (push rods) minesblown Engine 8 10-23-2003 11:10 AM

All times are GMT -6. The time now is 06:30 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.