Need info on my head swap - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Sep 10th, 03, 10:01 AM Thread Starter
 
Join Date: Apr 2000
Posts: 161
Post

As some of you know I am changing my 882's for the vortec's.I know the vortecs are a 64cc head.Can someone tell me the cc's for the 882's?Also how much of a jump in CR can I expect?I'm asking this in part because I'm thinking of switching over from my Holley 650 to a new 750 that I have had sitting in my closet for about 3 yrs.now.Also how about any jet changes should I make if this 750 is the way to go with these heads.Do I need to change the power valve.The one in the carb is a 6.5. I'm sorry.This is for a 350 that still has the stock cam.The only mods are headers/flowmasters,and an alum.intake.

[ 09-10-2003, 12:20 PM: Message edited by: zgator ]
zgator is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old Sep 10th, 03, 11:11 AM
Senior Tech
John
 
Join Date: Feb 2001
Location: Maine
Posts: 3,099
Post

the 882 heads are a 76cc chamber head. The Vortecs are a 64cc. That is over one full point of compression difference.

If the engine has a fairly stock cam, the smaller carb will work fine.

John

- '68 Chevy Camaro (sort of done, but always subject to improvement)
- '63 Pontiac Tempest (work in progress)
- '72 Datsun 240-Z (back-burner for now)
boodlefoof is offline  
post #3 of 4 (permalink) Old Sep 10th, 03, 01:05 PM Thread Starter
 
Join Date: Apr 2000
Posts: 161
Post

Thanks boddlefoot.Will it hurt my performance at all if I do put the 750 on it?I do plan on a cam swap in the near future.Any ideas on a cam would be good. [img]graemlins/beers.gif[/img]
zgator is offline  
 
post #4 of 4 (permalink) Old Sep 11th, 03, 03:32 AM
Senior Tech
John
 
Join Date: Feb 2001
Location: Maine
Posts: 3,099
Post

For a mild 350, the 750 is probably "over carbing" the engine. The 750 can be made to run well on it with proper tuning, but the 650 will probably get you better throttle response at a similar level of proper tuning.

You should check out an article that came out in Chevy High Performance Magazine awhile back... they did a buildup of a 350 using the Vortec heads and a Comp XE268 camshaft and made over 400 horses and plenty of torque. Here's a link... http://www.73-87.com/chp/gm3505.htm

John

- '68 Chevy Camaro (sort of done, but always subject to improvement)
- '63 Pontiac Tempest (work in progress)
- '72 Datsun 240-Z (back-burner for now)
boodlefoof is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user 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.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome