picked up a gm 5.7 roller with weird bearing sizes
picked up a gm 5.7 roller with weird bearing sizes
motor looks to have never been apart
all rod bearings are .0005 with a date of 6/87 with gm stamp
mains standard except one is .0006 dated 6/87 with gm stamp
all other mains dated 5/87
and it a roller
all rod bearings are .0005 with a date of 6/87 with gm stamp
mains standard except one is .0006 dated 6/87 with gm stamp
all other mains dated 5/87
and it a roller
On Probation
Joined: Oct 2008
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From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: picked up a gm 5.7 roller with weird bearing sizes
"Select-fit" accommodates wear of the crank grinding stone to get the desired final clearance for the oil film. Dates not matching means nothing, all the bearings were mass-produced well in advance of final engine assembly. Nothing weird here.
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