4.15 B engine stoker crank/chevy rods
#1422493
04/20/13 02:19 PM
04/20/13 02:19 PM
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Joined: Mar 2003
Posts: 2,498
PA
moparacer
OP
top fuel
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OP
top fuel
Joined: Mar 2003
Posts: 2,498
PA
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Anyone know if there is a source for a 4.15 stroke, 6 bolt, 400 main stroker crank with chevy 2.20 rod journals?
67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
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Re: 4.15 B engine stoker crank/chevy rods
[Re: MR_P_BODY]
#1422495
04/20/13 02:56 PM
04/20/13 02:56 PM
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Joined: Feb 2005
Posts: 20,170
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,170
PA.
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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.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: 4.15 B engine stoker crank/chevy rods
[Re: Cab_Burge]
#1422500
04/20/13 03:33 PM
04/20/13 03:33 PM
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Joined: Sep 2007
Posts: 99
Nv
Bill Koski
member
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member
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Posts: 99
Nv
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Re: 4.15 B engine stoker crank/chevy rods
[Re: Bill Koski]
#1422501
04/20/13 06:47 PM
04/20/13 06:47 PM
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Joined: Feb 2004
Posts: 3,441
Mo.
supercomp
master
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master
Joined: Feb 2004
Posts: 3,441
Mo.
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K1 makes one. 383-4150TC6F
Last edited by supercomp; 04/20/13 07:01 PM.
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Re: 4.15 B engine stoker crank/chevy rods
[Re: supercomp]
#1422502
04/20/13 11:01 PM
04/20/13 11:01 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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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.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: 4.15 B engine stoker crank/chevy rods
[Re: moparacer]
#1422504
04/21/13 11:02 AM
04/21/13 11:02 AM
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Joined: Feb 2004
Posts: 3,441
Mo.
supercomp
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master
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Mo.
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Must have changed it. We bought one last year and it was a 6 bolt. Better call. Same part number.
Last edited by supercomp; 04/21/13 11:16 AM.
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Re: 4.15 B engine stoker crank/chevy rods
[Re: supercomp]
#1422505
04/21/13 12:14 PM
04/21/13 12:14 PM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
64Post
master
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master
Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
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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. 
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Re: 4.15 B engine stoker crank/chevy rods
[Re: moparacer]
#1422506
04/21/13 02:46 PM
04/21/13 02:46 PM
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Joined: Feb 2008
Posts: 714
Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 714
Central TEXAS!!!!
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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
Without Data, you’re just another guy with an opinion.
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Re: 4.15 B engine stoker crank/chevy rods
[Re: 64Post]
#1422507
04/21/13 05:20 PM
04/21/13 05:20 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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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,... 
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: 4.15 B engine stoker crank/chevy rods
[Re: CompWedgeEngines]
#1422508
04/21/13 09:21 PM
04/21/13 09:21 PM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
64Post
master
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master
Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
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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... 
Last edited by 64Post; 04/21/13 09:29 PM.
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Re: 4.15 B engine stoker crank/chevy rods
[Re: 64Post]
#1422509
04/22/13 01:41 PM
04/22/13 01:41 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: 4.15 B engine stoker crank/chevy rods
[Re: CompWedgeEngines]
#1422510
04/22/13 03:21 PM
04/22/13 03:21 PM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
64Post
master
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master
Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
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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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