retro roller cam / timing chain question!
Thread Starter
Melting Slicks
Joined: Oct 2002
Posts: 3,193
Likes: 1
From: Cincinnati Oh
retro roller cam / timing chain question!
I'm putting an LPE 219 roller cam in a non-roller block - the CompCams 2100 timing chain that Summit recommended does not fit the bolt pattern of the LPE cam I'm using, even though I told them this was a retro situation. It will fit the stock cam I took out though.
The cam is "machined" for the OEM retainer plate - can I still use this cam with a "roller" timing set on the 78' block or is the cam itself not compatible? or are there other caveats I've missed?
The cam is "machined" for the OEM retainer plate - can I still use this cam with a "roller" timing set on the 78' block or is the cam itself not compatible? or are there other caveats I've missed?
Burning Brakes
Joined: Nov 2004
Posts: 781
Likes: 0
It's not the bolt pattern, it's the machined area for the roller style retainer plate. You need a timing set/cam gear for a '87-newer roller block and a cam button (unless you have a machine shop that can modify the block to accept a retainer plate).
Thread Starter
Melting Slicks
Joined: Oct 2002
Posts: 3,193
Likes: 1
From: Cincinnati Oh
I've got a cloyes cover and cam button to control thrust - I just wanted to make sure that Summit gave me the wrong cam sprocket and that I wasn't missing something important.
thanks though.
thanks though.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by Ramanstud
I've got a cloyes cover and cam button to control thrust - I just wanted to make sure that Summit gave me the wrong cam sprocket and that I wasn't missing something important.
thanks though.
thanks though.
The late timing set and the LPE kit are all you need.
RACE ON!!!
Thread Starter
Melting Slicks
Joined: Oct 2002
Posts: 3,193
Likes: 1
From: Cincinnati Oh
CFI-EFI,
thanks for the clarification. I already have a cam button, but do I *need* the "wear plate" that fits around the machined portion of the late-model cam snout? Is there an issue with the timing sprocket rubbing up against the block face - I wouldn't think it would be an issue? Or does the wear plate keep the cam from moving too posteriorly into the block?
thanks for the clarification. I already have a cam button, but do I *need* the "wear plate" that fits around the machined portion of the late-model cam snout? Is there an issue with the timing sprocket rubbing up against the block face - I wouldn't think it would be an issue? Or does the wear plate keep the cam from moving too posteriorly into the block?
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
I have not personally done this. I DO know that you need the OE roller cam sprocket to fit the OE roller camshaft. Since you are using the non-roller block, you must make a provision for camshaft movement. To the best of my knowledge, the LPE kit is an excellent way to mate the new with the old. Others that have done it, may have a better idea.
RACE ON!!!
RACE ON!!!
Burning Brakes
Joined: Jan 2002
Posts: 993
Likes: 4
From: Glen Burnie MD
I had the LPE kit for my original plan of putting a 219 in a non-roller block (scrapped that plan for a couple reasons). I was quite disappointed in it... the button would not stay in the end of the cam and the wear plate was poorly machined and brittle (it later cracked). I'd recommend a needle-bearing spacer button which doesn't rub against the timing cover. Competition Products (800-233-0199) has them for about $10. At the time, a couple people warned me against the LPE teflon button because it does wear down and need replacing. How long does it take? Nobody could tell me that...
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Le Mans Master
Joined: Mar 2002
Posts: 5,889
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From: Castro Valley Calif.
St. Jude Donor '03 thru '26
I used a Torrington bearing against the block and a Cloyes 2 piece cover with the integral button. It's a nice piece, but it's thickness (the timing cover) necessitated using an Edelbrock waterpump for clearance
IIRC, the T bearing comes with the Cloyes unit.........I think..........
Gawd, I got CRS disease.........
IIRC, the T bearing comes with the Cloyes unit.........I think..........
Gawd, I got CRS disease.........
Thread Starter
Melting Slicks
Joined: Oct 2002
Posts: 3,193
Likes: 1
From: Cincinnati Oh
I went ahead and ordered a thrust plate from Comp Cams so hopefully it will be a smoothly machined piece. I also am using the CLoyes 2-piece cover with integral/adjustable cam button. That should do the trick, but I was unaware of fitmet issues with the water pump... I'll have to check that out tomorrow!
edit: there was no thrust bearing with my cloyes t-cover, just the cam button that's a part of the cover....
edit: there was no thrust bearing with my cloyes t-cover, just the cam button that's a part of the cover....
