Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
One other thing I observed in the tear down is that one of the rod bearings had noticeable pits per the photo below.
Should I be worried about this? The oild passage way hole is much larger than the pits and the pits have smooth edges. The crankshaft is a GM casting number 395159; which based on my research; this is a cast crank that was used in 1970-1980 400 cid SBC. It has the XL mains; 2 piece seal and is externally balanced.
Do I need to woory about this? If so, what recommendations do you have?
Vette(s): 1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top
Looks like you are having some fun! The pitting is not a big worry since I assume you are going to have the crank cut...not a big cost at all..where did you find a 400? I haven't seen one of them laying around in some time..torque monster!
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Crank definitely needs turned to get the pits out. You wouldn't wanna actually run that crank without having it turned, imho. The rod bearings having pits also would indicate that this engine may have been setting up for a while... What are ya actually doing here? Building a new engine?
____________________________________ Joel Adams C3VR Lifetime Member #56 My Link
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