Posted By: moparacer
4.15 B engine stoker crank/chevy rods - 04/20/13 06:19 PM
Anyone know if there is a source for a 4.15 stroke, 6 bolt, 400 main stroker crank with chevy 2.20 rod journals?
Quote:
You could be in luck.
Mancini overstock sale:
http://chucker54.stores.yahoo.net/384st6bo10ea.html
Quote:Quote:
You could be in luck.
Mancini overstock sale:
http://chucker54.stores.yahoo.net/384st6bo10ea.html
He would still need to have it cut for chevy rods
Quote:I buy the 4.150 stroke RB/Hemi cranks and have the rods offset ground down to 4.25 or 4.300 stroke with the BB Chevy rod journal sizes and have the mains and counterweights cut down at the same time
Anyone know if there is a source for a 4.15 stroke, 6 bolt, 400 main stroker crank with chevy 2.20 rod journals?
Quote:
K1 makes one. 383-4150TC6F
Quote:
Must have changed it. We bought one last year and it was a 6 bolt. Better call. Same part number.
Quote:
Actually not true. The 6 is the number of counterweights.
Here is how that part number breaks down:
383 is obvious
4150 stroke
J is main journal ( Chysler Hemi)
C is 2.200 rods
6 is counterweights
F is forged crank
What K1 and Molnar ( Molnar used to BE K1) did, was use the prefix " 426" for any BBM crank with 8 bolt flange, and " 440" for any crank that was 6 bolt flange.Since Wiseco bought out K1, maybe they made some changes in that regard.
383-4150TC6F used to be the old K1 part number. T standing for 383/400 BBM, more so for counterweight dimensions.
I will try to get ahold of Molnar today and get an answer. I was pretty sure the old K1 383/400 WERE 6 bolt. Perhaps that has changed as mentioned. I have been trying to get a few of these guys to get more 6 bolt cranks, as many people have exisiting 6 bolt parts, and to be honest, there is no big gain in the 8 bolt style for most applications anyhow. It was from the Hemis years ago, and everyone simply stuck with it because they felt the 8 bolt Hemi pattern was superior. I have still yet so see anyone tear 6 bolt outta the crank flange,...
Quote:
Well that's what I get for ASSuming...
Quote:
Molnar only has 8 bolt flange for that crank folks, no 6 bolt. I would much rather change the flexplate to 8 bolt than grind the 2.375 journals down. ( unless this is a stick car?)