| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
02-22-2024, 09:42 AM
|
||||
|
||||
Clevite or Federal Mogul Bearings?
I pulled out the 463 for routine maintenance and inspection. My bearings are showing a little wear from racing and occasional nitrous use. The crank looks great but I'll measure everything today.
With that said, the motor currently has Clevite bearings in it -.010 crank and -.020 rod. Looking on Butler, they are twice the price as the FM bearings. KRE doesn't even list Clevite bearings, only FM. Is there a quality difference between the two to justify the price difference?
__________________
 Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
| The Following User Says Thank You to Johnny406 For This Useful Post: | ||
|
#2
02-22-2024, 07:05 PM
|
|||
|
|||
|
When FM moved all their bearing production to Mexico, the oil clearances were not as consistent as the older USA production. I like the design, 3/4 groove and thrust faces of the FM bearings however. In the last 8-10 years I have been using King bearings because of their quality and consistent oil clearances.
|
| The Following 2 Users Say Thank You to mgarblik For This Useful Post: | ||
|
#3
02-23-2024, 02:01 PM
|
||||
|
||||
|
Another consideration for any bearing how hard it’s surface layer is which is a factor in allowing dirt to embed in the bearing and not chew up the journal it’s rotating on.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#4
02-23-2024, 02:48 PM
|
||||
|
||||
|
So how many of you all redrill the main oil hole to match the block?
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
| The Following 3 Users Say Thank You to Skip Fix For This Useful Post: | ||
|
#5
02-23-2024, 03:39 PM
|
||||
|
||||
|
I do, and I also open up the Vee groove that passes the oil from the block oil passage into the hole that feeds the bearings.
The area of that Vee groove formed by the factory drilling process is less then the oil passage hole.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#6
02-24-2024, 03:11 PM
|
||||
|
||||
|
Quote:
__________________
Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
|
#7
02-24-2024, 09:27 PM
|
||||
|
||||
|
Quote:
__________________
1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
| The Following User Says Thank You to AG For This Useful Post: | ||
|
#8
02-25-2024, 07:57 AM
|
||||
|
||||
|
John I do not currently have a block apart, but I found this picture.
Look at the thrust bearing oil feed hole and you will see how the Vee groove is a restriction. You will need a 1/4” Ball head burr to grind it out.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
| The Following User Says Thank You to steve25 For This Useful Post: | ||
|
#9
02-25-2024, 11:01 AM
|
||||
|
||||
|
I always do it also. Ever wonder why the bearing companies don't locate it in the best spot to begin with?
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
|
#10
02-25-2024, 12:36 PM
|
||||
|
||||
|
Just to make sure I understand, I want to open/clean this up a little bit, correct?
__________________
Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
|
#11
02-25-2024, 06:28 PM
|
||||
|
||||
|
Correct!
It needs to ground out to a bit bigger the the oil passage that feeds it off of the main galley from the filter return.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
| The Following User Says Thank You to steve25 For This Useful Post: | ||
|
#12
02-26-2024, 04:20 PM
|
|||
|
|||
|
Oil feed
Quote:
Steve, does that mean that the figure 8 ends up looking more like an oval, or is the v groove just ground down deeper.?
__________________
Frank M. 75 Firebird 68 Firebird 400 RAIII 66 Chevy II 461 Pontiac in AZ |
|
#13
02-26-2024, 06:32 PM
|
||||
|
||||
|
Turn the V into a tall and bit wider U in other words.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
| The Following 3 Users Say Thank You to steve25 For This Useful Post: | ||
|
#14
02-29-2024, 02:34 PM
|
||||
|
||||
|
Ia2a oil holes just for reference
FM .010 bearing will be opened up to help flow But I wouldn’t loose sleep over it the area of the slot is probably more then large enough to compensate for the obstruction
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
|
#15
02-29-2024, 02:40 PM
|
||||
|
||||
|
And the IA2A has an oil hole through the front main stud for an accessory feed like a turbo.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
|
#16
02-29-2024, 02:48 PM
|
||||
|
||||
|
Yes I haven’t looked at an iron ia2 yet but o don’t think the oil passes thru the stud on an iron ia2 curious why I assume strength and desire to leave extra material
In the area same reason the outer main fasteners are studs and not bolts
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction Last edited by mysticmissle; 02-29-2024 at 03:37 PM. |
|
#17
02-29-2024, 08:15 PM
|
||||
|
||||
|
How's this? I didn't want to overdue it.
__________________
Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
|
#18
02-29-2024, 08:27 PM
|
||||
|
||||
|
Looks good to me
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
|
#19
03-01-2024, 06:50 AM
|
||||
|
||||
|
Looks fine.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#20
03-01-2024, 08:55 AM
|
||||
|
||||
|
Mod bearings
Need to dress a bit more w a round file but you get the idea
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
