DOHC on CHEVY 350? POSSIBLE? - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 01-31-2010, 06:45 PM
XeroVolume's Avatar
Registered User
 
Join Date: Jan 2010
Location: Texas
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
DOHC on CHEVY 350? POSSIBLE?

Just for fun, I was wondering what all might be involved in running Dual Overhead Cams or even a Single Overhead Cam with an early model Chevy 350 CID engine. Has this ever been attempted? Is it even possible?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-31-2010, 06:51 PM
XNTRCI-T's Avatar
AKA Lee in KC
 
Last photo:
Join Date: Apr 2006
Location: Overland Park, KS
Age: 66
Posts: 530
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Never mind.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-31-2010, 07:00 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,670
Wiki Edits: 7

Thanks: 44
Thanked 10 Times in 10 Posts
I have read about a couple companies that have made heads or maybe i am thinking 3 or 4 valve heads. But either way they are big $$$$$$$$ though. Do a google search for it.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-31-2010, 07:30 PM
Registered User
 
Join Date: May 2007
Location: Winona, mn
Posts: 79
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
If I was a millionaire I may try that for fun. Maybe there is a 4cyl gm motor with the same head bolts, water passages, and bore spacing? I'm interested now... If one of the big three just used the same spec from half a v8 for an inline 4 I think it would be GM. If you want you could check head gaskets at the auto parts store? Head bolts are a biggie.. water passages and oil can be routed for a one off. I would start off with a old 2.5 inline 4 and compare the head gaskets. Got a friend at the auto parts store? or go in when they are slow and keep comparing head gaskets?
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-31-2010, 07:31 PM
Registered User
 
Join Date: May 2007
Location: Winona, mn
Posts: 79
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What is funny is a volvo DOHC will fit on a 2.3 ford motor with some modification. It really isn't that horrible...
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 01-31-2010, 07:37 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,670
Wiki Edits: 7

Thanks: 44
Thanked 10 Times in 10 Posts
Quote:
Originally Posted by TTFiveOhRanger
What is funny is a volvo DOHC will fit on a 2.3 ford motor with some modification. It really isn't that horrible...
lol thats strange. I have read that the GM LS series heads will bolt onto a ford windsor 302
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 01-31-2010, 07:48 PM
Registered User
 
Join Date: May 2007
Location: Winona, mn
Posts: 79
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That is just plain hilarious if it is true..
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 01-31-2010, 07:52 PM
Registered User
 
Join Date: May 2007
Location: Winona, mn
Posts: 79
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Check this out! http://forums.hybridz.org/showthread.php?t=158418
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 01-31-2010, 08:07 PM
Registered User
 
Join Date: May 2007
Location: Winona, mn
Posts: 79
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Those guys were talking about filling in block areas and taping for head bolts! That would be a serious feat to weld that to work without cracking and or warping..?
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 01-31-2010, 08:21 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 48
Posts: 9,792
Wiki Edits: 0

Thanks: 48
Thanked 599 Times in 537 Posts
Not Overhead Cam but 4-valve cylinder head for SBC, BBC, SBF at www.araoengineering.com Nelson Racing Engines has a video in their gallery of Arao heads on a supercharged 406 SBC that is something to see www.nelsonracingengines.com Heard through the net that delivery is very slow from Arao.

Moser Engineering did a OHC conversion on the SBC in the 70's.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 01-31-2010, 08:58 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,670
Wiki Edits: 7

Thanks: 44
Thanked 10 Times in 10 Posts
I forgot about the LT5!! 32 valve DOHC 350! Ugh can you imagine doing a valve job on those heads.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 01-31-2010, 09:16 PM
Rickracer's Avatar
ASE Master Tech, Fabricator
 
Last wiki edit: Taurus 2-speed fan control wiring diagram Last photo:
Join Date: Jan 2010
Location: Kissimmee, Florida
Age: 55
Posts: 937
Wiki Edits: 8

Thanks: 0
Thanked 3 Times in 3 Posts
I remember some time, I think the mid 80s, there was a company making a DOHC 32 valve conversion heads for SBCs, I can't for the life of me remember the name of the company right at the moment, (CRS disease, ), but if I do, I'll post it,
Reply With Quote Quick reply to this message
The Following User Says Thank You to Rickracer For This Useful Post:
zmaxmotorsports (03-05-2013)
  #13 (permalink)  
Old 01-31-2010, 09:28 PM
Blazin72's Avatar
You got a leaky spark tube...
 
Last wiki edit: Rearend removal
Last journal entry: General Lee
Last photo:
Join Date: Jul 2005
Location: Union, WA
Age: 32
Posts: 2,868
Wiki Edits: 19

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by zildjian4life218
I forgot about the LT5!! 32 valve DOHC 350! Ugh can you imagine doing a valve job on those heads.
The LT5 was a completely different, one-off design though. It is more closely related to the Northstar and Aurora V8s that came after it than with the more common Gen I and Gen II SBC V8s.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 01-31-2010, 10:23 PM
gas_guzzler's Avatar
Registered User
 
Last photo:
Join Date: Feb 2008
Location: Perth, Australia
Posts: 155
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
Do a search for Weslake chevrolet heads. I saw a pair of these for sale a couple years ago, pretty sure they were 4 valves per cylinder. Very expensive and rare. I think they made ford v8 ones too?
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 02-01-2010, 02:39 AM
Registered User
 
Last photo:
Join Date: Nov 2003
Location: oklahoma
Age: 33
Posts: 250
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
ENGINE

350 c.i. V-8 ZR1 LT5 lotus designed and bult by mercruy marine.

C.R.
11.0:1

Horsepower
375@5800

Torque
370@4800

Acceleration
Sec.

0-60 mph
4.9

Standing 1/4 mi.
13.4@109 mph


It is amazing how much performance has changed in last 20 years. It only cost $58,995. What would that be in inflated dollars.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
finally finished chevy 350 build redneckrodder Engine 7 05-30-2011 07:03 PM
350 chevy heads question pena0724 Engine 7 03-02-2009 07:09 AM
350 chevy pena0724 Engine 2 02-17-2009 09:04 PM
350 Chevy in a '73 TransAm Lawngodfather Engine 7 06-10-2008 09:08 AM
El Camino Engine - 350 Chevy or 455 Pontiac bjam2 Engine 16 08-07-2007 04:45 PM


All times are GMT -6. The time now is 12:06 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.