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Thinking about converting to a factory roller cam setup? Think again.

  • Thread starter Thread starter stock50LX
  • Start date Start date Nov 21, 2007

stock50LX

Curmudgeon
Founding Member
Oct 2, 2001
1,858
0
0
University Place, WA
Nov 21, 2007
#1
  • Nov 21, 2007
  • #1
Be ready to pay double for a cam because you will need a small base circle grind, then be ready to have the new cam reground because the lifters contact the dog bones, pushing them up at the top of the lift rotation. Have a dial indicator ready so the cam grinders know how much to remove. Be prepared to use a die grinder on the dog bones when they don't lie flat between the lifters due to irregular block casting. Be careful when you drill and tap the block for the spider, you could break-off the tap. You will need to have new cam bearings installed either way. Wince as you tighten the bolts that hold down the spider as you worry about driving them through the new cam bearings. Have an adjustable pushrod ready so you can find the new pushrod length. The distributor gear must be changed to a steel one, so be ready to take it back to the machine shop when they install the gear too high or too low on the distributor shaft. Be ready to degree-in your cam several times before and after the regrind. Did I leave anything out?

I haven't even addressed what you need to do to get a windage tray to fit in a foxbody oil pan...

Think about just buying aftermarket roller lifters...

Yeah, Al. I had to take the cam out to have .035 removed from all the lobes. I'm still looking for that elusive 106* centeriline... 107* looks good at this point. I've rotated this engine by hand to such an extent, the rings are probably already seated.
 

Mustang78

New Member
Feb 8, 2006
486
0
0
Aberdeen, WA
Nov 21, 2007
#2
  • Nov 21, 2007
  • #2
thats rediculous, hope it runs good!
 
M

MyFordsFly

Founding Member
Oct 29, 2001
151
1
18
Nov 22, 2007
#3
  • Nov 22, 2007
  • #3
Sounds like you fought a few things a bit but that just about sums it up. After you do a couple it does get a little easier but I doubt that makes you feel any better.
 

stock50LX

Curmudgeon
Founding Member
Oct 2, 2001
1,858
0
0
University Place, WA
Nov 22, 2007
#4
  • Nov 22, 2007
  • #4
MyFordsFly said:
Sounds like you fought a few things a bit but that just about sums it up. After you do a couple it does get a little easier but I doubt that makes you feel any better.
Click to expand...


I was trying to forewarn people about this task. Start early and expect delays.

Spent an entire day on the phone and dropping off, fitting, and picking up parts that had to be re-pressed, reground, again! I gained valuable repetition degreeing cams though...

Experience means a lot! The machinist should have done a better job, but the cam was no one's fault; it was just part of a process that had be completed. I consider myself fortunate to have Delta Cams nearby. They were great! Without them I would have had to send the cam back to Comp Cams. It's good to buy locally when possible. Now I can get this thing together this week instead of having it as garage furniture for another month.
 

stock50LX

Curmudgeon
Founding Member
Oct 2, 2001
1,858
0
0
University Place, WA
Nov 22, 2007
#5
  • Nov 22, 2007
  • #5
Mustang78 said:
thats rediculous, hope it runs good!
Click to expand...


So do I.
 

lamrith

Founding Member
Jun 7, 2000
1,386
2
38
Tacoma, WA
Nov 22, 2007
#6
  • Nov 22, 2007
  • #6
I will second the thumbs up for Delta Cam's. Not done the roller conversion, but on more than one occaision they have bailed me out and Jerry always tells you the situation straight up, no games or voodoo talk to make you buy something.
 
M

MyFordsFly

Founding Member
Oct 29, 2001
151
1
18
Nov 22, 2007
#7
  • Nov 22, 2007
  • #7
stock50LX said:
I was trying to forewarn people about this task. Start early and expect delays.

Spent an entire day on the phone and dropping off, fitting, and picking up parts that had to be re-pressed, reground, again! I gained valuable repetition degreeing cams though...

Experience means a lot! The machinist should have done a better job, but the cam was no one's fault; it was just part of a process that had be completed. I consider myself fortunate to have Delta Cams nearby. They were great! Without them I would have had to send the cam back to Comp Cams. It's good to buy locally when possible. Now I can get this thing together this week instead of having it as garage furniture for another month.
Click to expand...

I wasnt implying you did anything wrong. Just that after a couple of times its less of a struggle. Glad you got it all worked out and hopefully you see some healthy benefits from it. Ive used Delta quite a few times, great place to deal with.
 

WaterPog

Founding Member
Mar 12, 2001
2,201
0
0
Portland, OR
Nov 22, 2007
#8
  • Nov 22, 2007
  • #8
So, did you end up saving anything over the aftermarket lifters in the end?

My guess is that it would have been cheaper to do it that way in the beginning, even w/o taking your time into account.
 

Mustang78

New Member
Feb 8, 2006
486
0
0
Aberdeen, WA
Nov 23, 2007
#9
  • Nov 23, 2007
  • #9
hey stock50lx, do you know if that guy is still selling the front drag lites i never bought? i think his name was paul..
 

TheRedBlur

Active Member
Jul 7, 2003
15
0
38
seattle
Nov 23, 2007
#10
  • Nov 23, 2007
  • #10
bitter? lol. man, if we got in touch earlier, I have some retrofit roller lifters (link bar) that I have sitting around in some oil. I think I have a full set plus an extra pair.
 

stock50LX

Curmudgeon
Founding Member
Oct 2, 2001
1,858
0
0
University Place, WA
Nov 24, 2007
#11
  • Nov 24, 2007
  • #11
WaterPog said:
So, did you end up saving anything over the aftermarket lifters in the end?

My guess is that it would have been cheaper to do it that way in the beginning, even w/o taking your time into account.
Click to expand...

It was still cheaper using the factory stuff, since I already owned the parts. The cam was more, but many of the other expenses would have occurred with the aftermarket lifters too: new pushrods, buying and pressing on the steel gear. Nevertheless, I would have purchased aftermarket ones had I known then what I do now.
 

stock50LX

Curmudgeon
Founding Member
Oct 2, 2001
1,858
0
0
University Place, WA
Nov 24, 2007
#12
  • Nov 24, 2007
  • #12
Mustang78 said:
hey stock50lx, do you know if that guy is still selling the front drag lites i never bought? i think his name was paul..
Click to expand...

I don't know.
 

352Ford2

New Member
Oct 12, 2005
393
0
0
Seattle,WA
Nov 26, 2007
#13
  • Nov 26, 2007
  • #13
From everything i have seen in my life, link bar roller lifters and STD base circle cam (of properly matched material/process) are the way to go when doing this conversion. It may cost a few pennies more, but it is much easyer to put together and when you are done you are not stuck with a flexy small diameter cam and all the issues included with that.

my 2 cents
 

Chung Oh

Founding Member
Jul 26, 2001
129
0
0
Vancouver
Dec 4, 2007
#14
  • Dec 4, 2007
  • #14
Welcome

Welcome to the real world of high performance where direct fit means barely fit and universal means "Forgetaboutit".
 

white 89 GT

Member
Apr 3, 2003
281
0
17
Tacoma
Dec 4, 2007
#15
  • Dec 4, 2007
  • #15
352Ford2 said:
From everything i have seen in my life, link bar roller lifters and STD base circle cam (of properly matched material/process) are the way to go when doing this conversion. It may cost a few pennies more, but it is much easyer to put together and when you are done you are not stuck with a flexy small diameter cam and all the issues included with that.

my 2 cents
Click to expand...

I think small base circle is in reference to the lobe and not the shaft, so it should not flex anymore than a std diameter cam. Your more than welcome to correct me if im wrong.
 

stock50LX

Curmudgeon
Founding Member
Oct 2, 2001
1,858
0
0
University Place, WA
Dec 4, 2007
#16
  • Dec 4, 2007
  • #16
white 89 GT said:
I think small base circle is in reference to the lobe and not the shaft, so it should not flex anymore than a std diameter cam. Your more than welcome to correct me if im wrong.
Click to expand...


You're right Al: nothing is taken off the shaft. The cam looks much like an LS 1 cam. It's running pretty well too. Those new mufflers make the thing much quieter, my wife can hear me two and 3/4 blocks away now; not three like before.
 
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