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4.15 B engine stoker crank/chevy rods

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?
Posted By: MR_P_BODY

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 06:23 PM

Callies will make you up one... I bought a 440 main
2.2 4.15 from them... they will turn the mains... call them
Posted By: pittsburghracer

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 06:56 PM

I would give either Todd @ Competition Wedge or Dan @ Performance only or Bob @ Bob George Racing a call. All members and you can't go wrong with any of them.
Posted By: AAR-B4

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 07:00 PM

You could be in luck.
Mancini overstock sale:
http://chucker54.stores.yahoo.net/384st6bo10ea.html
Posted By: MR_P_BODY

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 07:04 PM

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
Posted By: AAR-B4

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 07:17 PM

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




It would be worth a call. Eagle has the rods for this combo (6.760) in both 2.375 and 2.200.
Posted By: Cab_Burge

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 07:22 PM

Quote:

Anyone know if there is a source for a 4.15 stroke, 6 bolt, 400 main stroker crank with chevy 2.20 rod journals?


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
Posted By: Bill Koski

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 07:33 PM

Ohio Crankshaft!
Posted By: supercomp

Re: 4.15 B engine stoker crank/chevy rods - 04/20/13 10:47 PM

K1 makes one. 383-4150TC6F
Posted By: CompWedgeEngines

Re: 4.15 B engine stoker crank/chevy rods - 04/21/13 03:01 AM

That is correct Supercomp. That is the low deck 4150 X 2.200 crank. I just checked on one of these last week.

The Eagle dont have 2.200, nor do the RPMS, but they do both make a 4.150 low deck, just not 2.200. The 6 bolt stuff is a little tougher to get usually.
Posted By: moparacer

Re: 4.15 B engine stoker crank/chevy rods - 04/21/13 04:21 AM

Quote:

K1 makes one. 383-4150TC6F




Shows that its 8 bolt.

Thanks for all the options. Will start calling around Monday and checking.

I might get stuck just ordering that .10 .10 crank off mancini and turning the rod journals down.
Posted By: supercomp

Re: 4.15 B engine stoker crank/chevy rods - 04/21/13 03:02 PM

Must have changed it. We bought one last year and it was a 6 bolt. Better call. Same part number.
Posted By: 64Post

Re: 4.15 B engine stoker crank/chevy rods - 04/21/13 04:14 PM

Quote:

Must have changed it. We bought one last year and it was a 6 bolt. Better call. Same part number.




Yeah, the 6 in the PN used to correspond to the number of holes in the flange.
Posted By: sr4440

Re: 4.15 B engine stoker crank/chevy rods - 04/21/13 06:46 PM

I am pretty sure Molnar Technologies makes a 6 bolt 4.15 crank. contact http://www.4secondsflat.com/ and ask for a quote, you won't believe the price.
I just got a 4.25 stroke and it is dead on spec.


Joe
Posted By: CompWedgeEngines

Re: 4.15 B engine stoker crank/chevy rods - 04/21/13 09:20 PM

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,...
Posted By: 64Post

Re: 4.15 B engine stoker crank/chevy rods - 04/22/13 01:21 AM

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,...




Well that's what I get for ASSuming...
Posted By: CompWedgeEngines

Re: 4.15 B engine stoker crank/chevy rods - 04/22/13 05:41 PM



Well that's what I get for ASSuming...




Oh, dont worry 64, we ALL been there a time o r two!..

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?)
Posted By: 64Post

Re: 4.15 B engine stoker crank/chevy rods - 04/22/13 07:21 PM

Quote:



Well that's what I get for ASSuming...




Oh, dont worry 64, we ALL been there a time o r two!..

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?)




How hard could it be to reprogram the CNC to do a 6-bolt flange?
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