Re: R block cam Journal question
[Re: RAY1969CARS]
#1782221
03/19/15 11:42 AM
03/19/15 11:42 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I have 1 more 50mm cam(UGL) for the 48*.. I was hoping that it was a babbit one but it isnt... some where I got rid of the one I had
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Re: R block cam Journal question
[Re: J_BODY]
#1782223
03/19/15 11:51 AM
03/19/15 11:51 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Our R3 project stalled for about 3 months last year as we couldn't find a core..... my R3 now has BBC cam bearings
What journal.. babbit or 50
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Re: R block cam Journal question
[Re: RAY1969CARS]
#1782228
03/19/15 01:38 PM
03/19/15 01:38 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Is it the 50 mm needle bearing a lot thicker than a regular bearing ? I don't know off hand If it is couldn't I just bore out the cam tunnel seems to me that the 50mm care are easier to come by my experience with the 1st R block being so old and they r3 a lot newer. If anybody's done is what would be the price on doing it Machine whys is it a real big deal ???
On my new R3 block it came with the 50m cam tunnel but I still had to have it machined to line it up and have the bearings fit.. the tunnel was a bit undersize.. I had to have the mains line honed also.. it was bad
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Re: R block cam Journal question
[Re: MR_P_BODY]
#1782229
03/19/15 04:31 PM
03/19/15 04:31 PM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
OP
pro stock
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OP
pro stock
Joined: Apr 2007
Posts: 1,390
CA.
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Quote:
Quote:
Is it the 50 mm needle bearing a lot thicker than a regular bearing ? I don't know off hand If it is couldn't I just bore out the cam tunnel seems to me that the 50mm care are easier to come by my experience with the 1st R block being so old and they r3 a lot newer. If anybody's done is what would be the price on doing it Machine whys is it a real big deal ???
On my new R3 block it came with the 50m cam tunnel but I still had to have it machined to line it up and have the bearings fit.. the tunnel was a bit undersize.. I had to have the mains line honed also.. it was bad
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I guess this is half the fun lol
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Re: R block cam Journal question
[Re: MR_P_BODY]
#1782233
03/19/15 10:54 PM
03/19/15 10:54 PM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
OP
pro stock
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OP
pro stock
Joined: Apr 2007
Posts: 1,390
CA.
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Quote:
Quote:
Quote:
Quote:
Is it the 50 mm needle bearing a lot thicker than a regular bearing ? I don't know off hand If it is couldn't I just bore out the cam tunnel seems to me that the 50mm care are easier to come by my experience with the 1st R block being so old and they r3 a lot newer. If anybody's done is what would be the price on doing it Machine whys is it a real big deal ???
On my new R3 block it came with the 50m cam tunnel but I still had to have it machined to line it up and have the bearings fit.. the tunnel was a bit undersize.. I had to have the mains line honed also.. it was bad
.
I guess this is half the fun lol
If your gonna run a big lift cam you would be far better to have the cam tunnel bored to 50mm specs.. that way the cam wont flex like the stock type core being that you have to grind the base of the cam to get the lift... but then you would want good rockers also.. but you said you were going with TD if I recall and if you go that way I would go push rod oiling for the rockers.... nothing easy on these things EDIT Let me take a look around.. I think I have a set of 50mm bearing... if I have them you can have them but they would need a washing
Talk to a couple shops QMP. Bob Lemback I guess it can be done boring to a 50mm one more call to Brian at Imm that's the shop that will be doing all the machine work and the assembly and put it on the pump still need to know the pros and cons don't want to back myself into a corner to go a certain way with the motor oiling etc. etc.
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Re: R block cam Journal question
[Re: MR_P_BODY]
#1782235
03/20/15 12:12 AM
03/20/15 12:12 AM
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Joined: Oct 2007
Posts: 3,978 Hilltown Pa
1967dartgt
master
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master
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
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I would go with a Babbitt cam, the factory 2" size(1.998) and predator cams has cores. A Babbitt bearing is much more reasonable then rollers and cores are cheap also.
Brett Miller W9 cnc'd heads STR Chassis fabraction
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Re: R block cam Journal question
[Re: 1967dartgt]
#1782236
03/20/15 01:23 AM
03/20/15 01:23 AM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
master
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master
Joined: Oct 2011
Posts: 3,036
bean town ....Ca
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You live close to the best shop in the west.stop banging your head on the key board and get it done . And get it to the track the more money you try to save the more it cost you. This is what I found out the hard way on my w8 dill
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: R block cam Journal question
[Re: vc360]
#1782239
03/20/15 10:26 PM
03/20/15 10:26 PM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
OP
pro stock
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OP
pro stock
Joined: Apr 2007
Posts: 1,390
CA.
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Do the 50 mm roller bearing cams have holes in the journals for oil as well as A grove cut them ???
Last edited by RAY1969CARS; 03/20/15 11:44 PM.
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