Magnaflux and stress cracks
07-01-2007, 01:00 AM
#1
TECH Regular
Thread Starter
iTrader: (1)
Join Date: Nov 2006
Location: Greenup, Kentucky
Posts: 439
Likes: 0
Received 0 Likes
on
0 Posts
Magnaflux and stress cracks I was talking to a guy about his crankshaft in his upcoming build, and he said it needs to be turned because it has "microscopic cracks that are only detectable through magnaflux". Well, I told him I think that it's junk, and his response was,
So what's everyone's take on this?
"The crank is usable. If you ever hear of guys having their stock cranks 'polished' or 'turned', this is the same thing. It's not useless, it's quite usable in it's current condition. But a polish or turn will remove the microscopic stress cracks seen under magnaflux."
07-01-2007, 02:24 AM
#3
TECH Regular
Thread Starter
iTrader: (1)
Join Date: Nov 2006
Location: Greenup, Kentucky
Posts: 439
Likes: 0
Received 0 Likes
on
0 Posts
Nice. Only problem now is if I build a 383, my milled heads will have too much compression. Dang it! What heads are being used with 383's lately?
07-01-2007, 03:37 AM
#5
TECH Senior Member
Originally Posted by LS1rulz
Nice. Only problem now is if I build a 383, my milled heads will have too much compression. Dang it! What heads are being used with 383's lately?
07-01-2007, 09:11 AM
#6
TECH Regular
Thread Starter
iTrader: (1)
Join Date: Nov 2006
Location: Greenup, Kentucky
Posts: 439
Likes: 0
Received 0 Likes
on
0 Posts
Good point. I'm calculating though that I'd still have a DCR of 9.25 if I kept my heads (243's milled .030") and had 4cc valve reliefs. I guess I could even go with a slight dish, so that later I could put on truck heads and a procharger. Would dished pistons be a horrible idea with a 383?
