Anyone build 351C 2V heads w/460 intake valve? - Hot Rod Forum : Hotrodders Bulletin Board -- 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 11-13-2005, 11:23 PM

Last journal entry: Interior Removed
Last photo:
Join Date: Oct 2004
Location: near Cleveland, OH.
Age: 52
Posts: 69
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Anyone build 351C 2V heads w/460 intake valve?

Recently I have been hearing about modifying 351C 2V heads by replacing the stock intake valve (about 2.050") with the 460 intake valve (about 2.090"). Has anyone here built an engine with this modification?


Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 11-20-2005, 06:16 PM
xntrik's Avatar
Save a horse, Ride a Cowboy.
Last photo:
Join Date: Jul 2005
Location: Arkansas
Posts: 5,131
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
the more important question is why?????

The valves are almost too large anyway. Increasing the diameter reduces the short turn even more.

What are you trying to accomplish?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-20-2005, 07:56 PM
Max Keith's Avatar
Last photo:
Join Date: Jul 2003
Location: Fort Madison,Iowa
Age: 69
Posts: 2,391
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Bigger aint always better

Ill repeat the question, why bother? The 351C head with the stock valve flows about as good as it gets anyway. Having raced with Clevelands and knowing, over the years, several other people that have done the same, The stock valve size in the 2 bbl cleveland head will flow all you can ever get into the cylinder, up to and over 8500 RPM. The gain by going to a larger valve just isnt worth the effort. You are better off getting stainless one piece valves of stock size and go with that. The only people I know of that ever opted for larger valves were the guys running the 4 bbl head, and they are considereably larger valves anyway.
The stock valves in the 2 bbl head are 2.04/1.65 and the Limas ran a 2.08 inch intake with the same sized exhaust valve.
4 bbl cleveland heads had a 2.19/1.71 valve combination. If you are set on going to larger valves, go with the 4 bbl head jobs. But then the final question is, what are you going to do with this engine? If its a going to be a street engine, stay with the stock valve size, and concentrate on cleaning up the valve bowls and the exhaust runner. You will get a lot more out of it that way then just putting in bigger valves.
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
this is a saver.... GM build codes TooMany2count General Rodding Tech 24 11-23-2009 09:36 AM
Why spend money on heads? F-1Rodder Engine 8 03-07-2008 12:09 AM
Heads and Intake combo black66 Engine 4 07-23-2005 11:33 PM
Head recommendation - low HP w/LT1 intake Tim240Z Engine 0 07-08-2004 12:56 PM
Dual Carb intake for a 351C Fordyce Engine 2 05-19-2002 01:47 PM

All times are GMT -6. The time now is 09:24 AM.

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 1999 - 2012. All Rights Reserved.