Roller Cam Conversion - 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 07-14-2003, 03:28 PM
lakecityg's Avatar
Join Date: Jun 2003
Location: Lake Charles, Louisiana
Age: 38
Posts: 94
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Roller Cam Conversion

If you are converting a Ford 302 non-roller block to a roller block using the spider piece and stock lifters, is it necessary to use a special camshaft with a smaller base circle? or can you use a regualr cam?

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 07-14-2003, 03:45 PM
Dozier768's Avatar
Join Date: Jul 2003
Location: Portland, OR
Age: 38
Posts: 122
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
as far as i know the tops of the lifter boses must be machined flat for the lifter allignment bars to rest flat the valley must be tapped to hold the spring down and you need to use a cam button to keep the cam from walking "the stock roller 302 uses a retaining plate"and you must use a cam designed for a roller lifter, as they are perfectly flat and a flat tappet cam has an angle grond into it to keep the cam in place. your best bet would just be to get a retrofit roller setup from like crane cams. basically you dont want to put rollerlifters on a flat tappet cam.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-14-2003, 04:11 PM
eric302's Avatar
Why be normal?
Last photo:
Join Date: Jul 2003
Location: Waukesha WI
Age: 62
Posts: 122
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
I did this conversion last year on my 70 302 block. I used the comp cams hyd roller set up with the spider. I had to drill and tap the valley in 2 spots to hold the spider down and also where the dog bones sat on the lifter bores you had to make sure they sat flat on the top of the bores. I had to do a little grinding. If I did this again I would definately go with the lifters with the link bar alignment setup. This would eliminate the whole spider deal. I would go with the same manufacturer for the lifters and cam. Also call the cam help lines for advice. Good luck!
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-15-2003, 02:11 AM
mustang66maniac's Avatar
Ford Freak
Last photo:
Join Date: Feb 2002
Location: Rockville, MD
Age: 33
Posts: 676
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
all small fords use a retaining plate. you can use flat tappet cams in a roller block without the spider/dog bones, but you have to do some machining to use a roller cam in a flat tappet block. You cant interchange roller and flat tappet cams. Roller cams are steel and require a steel or bronze distributor gear.
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

All times are GMT -6. The time now is 02:22 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.