cylinder head question for pontiac 350 - 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
  #1 (permalink)  
Old 07-31-2012, 12:46 AM
Registered User
 
Join Date: Jul 2012
Posts: 63
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
cylinder head question for pontiac 350

Hi guys and gals i have a question regarding heads for my pontiac 350. my enigine is out of a 1972 lemans, it has 7H1 heads i guess i have read on here if i swap the heads i can a lot more power, my engine was only rated 175hp new.

So i found a set of rebuilt # 97 heads off a 1967 ram air gto that someone is selling for 700 bucks. will these heads work on a pontiac 350?

thanks ahead for the advice

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-31-2012, 08:16 AM
Registered User
 
Join Date: Nov 2011
Location: Virginia
Posts: 705
Wiki Edits: 0

Thanks: 0
Thanked 75 Times in 75 Posts
As a "rule", 350 "likes" the small valve heads better than the large valve. The cylinder bore is too small, "shrouding" the intake valve significantly. While Pontiac DID use large valve heads on the '69 350 "HO", it was found to make more power by replacing the 48s with 47s (small valve, small chamber).

A 72 CC chamber will be good for the 350. As said, 47s are good 350 heads. So are 11s and 17s.

That price for the 97s is pretty good, even if they aren't what you're after. Rare.

FWIW

Jim
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-31-2012, 09:30 AM
Registered User
 
Join Date: Jul 2012
Posts: 63
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ok thanks for the info. I guess ill pass oj the heads because I can't afford to buy heads that won't work well on my car limited funds and all. Unless its not a huge power drop going with the 97 heads vs. The 17 heads

Thanks
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:
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
Coolant in both Cylinder Head of 350 Marine18 Engine 10 03-19-2012 08:43 AM
Pontiac Cylinder Head Question recnepswilliams Engine 25 01-25-2011 05:07 PM
cylinder head question 75chev4x4 Engine 13 01-18-2011 08:08 PM
cylinder head question chev7616 Engine 3 02-19-2010 07:24 PM
Cylinder head question 85Sierra Engine 1 02-20-2005 08:29 PM


All times are GMT -6. The time now is 11:55 PM.


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.