Thread: 391/361 steel crankshaft info
Threaded View
-
06-29-2007 09:23 AM #11
FE Building
You guys are hitting some good points here. I'd run a 30 yr Ford crank
cast or steel before I'd run a Chinese POS for sure. Be careful not to get
the reciprocating weight to heavy with a 2 bolt block, Lemans rods are
heavy. I have raced a 427 with cast cranks for over 20 yrs and never
had a crankshaft problem. My 390 I ran 7000 and the 427 a little more.
I blew one up at 8500 (stupid) ,broke a rod, ruined a block, but did not
hurt the crank. I did see one in a Stock race car (Calverts 428 CJ) with a
heavy bottom end pull the block webbing and destroy everything. Very rare.
Of course with the longer crank throw on a non race motor you don't
want to turn the RPM's of the shorter arm. Good Luck with the parts. These
are definetly tough old motors.
Ron
Well I've sure gotten old too so don't worry about it! I've had two bypass surgeries, new knees, fought prostate, cancer and diabetes. I'm half blind, can't hear anything quieter than a jet engine,...
the Official CHR joke page duel