Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Ford > Mustang > Mustang Talk
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 07-05-2004, 11:15 PM   #1
mustang2422
AF Newbie
 
Join Date: Jun 2004
Location: Omaha, Nebraska
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Help with cam selection/valve clerance

Well the problem I have is Im not sure how big a cam I can use in my motor. I have an 1986 5.0 roller motor.This motor has the flat top pistons with no valve releve. I would like to get any of the motorsports 303 cams but I would hate to buy one and be to big.
Any one have any experiance with this motor and how big of a cam I can use ? Thanks to any one that can help.
Aaron
mustang2422 is offline   Reply With Quote
Old 07-05-2004, 11:21 PM   #2
boosted331
AF Enthusiast
 
Join Date: Apr 2002
Location: Los Angeles, California
Posts: 1,132
Thanks: 0
Thanked 0 Times in 0 Posts
Save the money you would have spent on a junk alphabet cam and invest it in a set of good heads. Your stock heads flow like crap, adding a big cam doesn't do much to make more power when the heads still flow like crap. A set of bolted on AFR 165's or some TW's will add a boatload more power all over the powerband, and still have OEM driveability.
boosted331 is offline   Reply With Quote
Old 07-06-2004, 12:37 AM   #3
motor_head_429
AF Regular
 
Join Date: Dec 2003
Location: N/A
Posts: 209
Thanks: 0
Thanked 0 Times in 0 Posts
The question is not really how big a cam you can run, but what cam would work well with your particular combination. If you have stock heads and exhaust, then an e-cam won't do much for you. If you just want more lift then just get 1.6 roller rockers instead of the cam, that will also free up some horsepower from the decrease in friction. In any case, the e-cam should not make the valves slap the pistons, at least not with 1.5 or 1.6 rocker arms.
motor_head_429 is offline   Reply With Quote
Old 07-06-2004, 01:48 AM   #4
GTStang
Stang Guy
 
GTStang's Avatar
 
Join Date: Jan 2002
Posts: 4,189
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to GTStang
86 is a bad year...... The flat-top pistons make using any aftermarket head or cam that is worth the time and money impossible w/o flycutting the stock pistons which at that point you might as well change for new slugs. I would seriously consider using the money to get new slugs so you can use a H/C set-up that will actually be worth the time and money.
__________________
R.I.P. Hypsi- Andy your one of the best people I ever had the priviledge to know. AF and the world
has lost one of the truly wonderful people...

GTStang is offline   Reply With Quote
Old 07-06-2004, 07:45 AM   #5
351wStang
AF Enthusiast
 
351wStang's Avatar
 
Join Date: Nov 2003
Location: Asheville, North Carolina
Posts: 2,271
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Help with cam selection/valve clerance

Some 9.5-10:1's with the Performer RPM heads, hydro roller cam, and the newer Performer RPM II intake would make your car a screamer on the streets with a 5 spd and 3.73's.
351wStang is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Ford > Mustang > Mustang Talk

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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



All times are GMT -5. The time now is 07:19 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts