FOR SALE New Big Block 4340 RB 4.15" Stroke Crankshaft, Chevy 2.200" Rod Journals Special Deal $699 Delivered

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
My supplier just offered me a super deal on the 2.200" Chevy journal 4.15" stroke cranks, so I am going to pass the saving on to you guys. This deal is only on the 2.200" rod journal cranks and not available on the 2.375" journal cranks. This price break will only be available until July 31st.

$699 to your door in the 48-states.

New RPM brand 4340 4.15" stroke crankshaft for RB. 2.200" Chevy rod journals, 6-bolt flange, 6.800" minimum rod length. Pre-Balanced Bobweight: 2550 grams. In a .030" over block this crank will make 493 cubic inches. With .055" over block it makes 499 cubic inches.
According to Kim (Oldkimmer) the RPM brand is of a higher quality than the cranks from 440 Source. I can sell this delivered to your door in the 48-states for $699. This is $204 less than a 440 Source crank delivered would cost. Thanks to the new tax laws I now only accept PayPal Friends and Family, Bank Check, or Personal Check with time allowed for check clearance.

Thanks for looking,
Tom

RPM MOPAR CRANK.jpeg
 

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
I was asked a few questions about the crank journal width and if this was a 2.375" Mopar journal crank that was cut down to Chevy size. So I am posting this information. The crank is not a cut down crank and was manufactured with a Chevy journal and the correct Chevy crank journal width to allow use of BBC rods. I made an inquiry and was told the crank journal width on this model crank is 2.0089"

Sorry I didn't post this earlier as some people have probably assumed it's a cut down 2.375" crank.

Thanks for the questions.

Tom
 

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
Special price has been extended through the month of August.

So still $699 delivered to your door

Tom
 

451Mopar

Well-Known Member
Feedback: 0 / 0 / 0
Local time
5:33 PM
Joined
Oct 25, 2011
Messages
3,218
Reaction score
2,538
Location
Aurora, CO
Is that for a B block or RB block main bearing size?
I like the 2.200" rod journals.

Is that the DG3-440D part number? 440 mains, 4.15" stroke, 6-bolt flange?
Asking because I noticed they also sell a 8-bolt flange version.
 
Last edited:

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
Is that for a B block or RB block main bearing size?
I like the 2.200" rod journals.

Is that the DG3-440D part number? 440 mains, 4.15" stroke, 6-bolt flange?
Asking because I noticed they also sell a 8-bolt flange version.

The crank in this ad is a DG3-440E-4150 part number with 2.200" Chevy rod journals.

440 RB main journals
4.15" stroke
6-bolt flange


For your reference the DG3-440D-4150 part number for 2.375" Mopar rod journal

Thanks,
Tom
 

451Mopar

Well-Known Member
Feedback: 0 / 0 / 0
Local time
5:33 PM
Joined
Oct 25, 2011
Messages
3,218
Reaction score
2,538
Location
Aurora, CO
Looking for a "B" block stroker crank. It does not look like they offer that stroke/rod journal for the low deck motors?
 

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
Looking for a "B" block stroker crank. It does not look like they offer that stroke/rod journal for the low deck motors?

You're in luck. I am also a Molnar dealer and can sell you the follow cranks for a 383/400 block.

CHRYSLER 383 / 400 / 440​

383-3910NC6F383/400 Chrysler - 2.200" Rod Pins3.910383/4002.2006.4502300
383-4150NC6F383/400 Chrysler - 2.200" Rod Pins4.150383/4002.2006.4502300
383-4250NC6F383/400 Chrysler - 2.200" Rod Pins4.250383/4002.2006.5002300


However while not priced as economical as the RPM cranks they are available and of the finest quality.

Tom
 

Ewinder68

New Member
Feedback: 0 / 0 / 0
Local time
6:33 PM
Joined
Aug 22, 2022
Messages
2
Reaction score
0
Location
North platte, Nebraska
The crank in this ad is a DG3-440E-4150 part number with 2.200" Chevy rod journals.

440 RB main journals
4.15" stroke
6-bolt flange


For your reference the DG3-440D-4150 part number for 2.375" Mopar rod journal

Thanks,
Tom
Could a guy use a bbc 6.76 rod with this crank or would he run into problems?
 

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
Could a guy use a bbc 6.76 rod with this crank or would he run into problems?

RPM claims that it requires 6.800". However I've wondered that myself since a 6.76" rod is only .040" shorter. The short answer is NO, but my gut tells me it would probably work, but I can't sell you one and say it will based on what RPM states.. If I was needing one for myself and had a set of 6.76" rods I could make it work even if I had to turn down the counterweights .040". Sorry I can't be more helpful on that question.

Tom
 

Ewinder68

New Member
Feedback: 0 / 0 / 0
Local time
6:33 PM
Joined
Aug 22, 2022
Messages
2
Reaction score
0
Location
North platte, Nebraska
RPM claims that it requires 6.800". However I've wondered that myself since a 6.76" rod is only .040" shorter. The short answer is NO, but my gut tells me it would probably work, but I can't sell you one and say it will based on what RPM states.. If I was needing one for myself and had a set of 6.76" rods I could make it work even if I had to turn down the counterweights .040". Sorry I can't be more helpful on that question.

Tom
No problem. I've got a 440 that spun a rod bearing was thinking bout upping the stroke so thank you for this info.
 

Nxcoupe

FBBO Gold Member
FBBO Gold Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Jul 4, 2021
Messages
1,467
Reaction score
1,303
Location
Red Lion, OH
Tom, can you get an 8 bolt one of these?
 

Geff McCarthy

FBBO Gold Member
FBBO Gold Member
Feedback: 2 / 0 / 0
Local time
4:33 PM
Joined
Aug 5, 2019
Messages
207
Reaction score
92
Location
Portland OR
Illustrating, again, my ignorance: I have a stock HP 413 sonic ram motor in pieces. Would this crankshaft fit, and increase cu in to...what? And would the 284 Street Hemi cam be correct for the resulting combo? Thanks.
 

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
Illustrating, again, my ignorance: I have a stock HP 413 sonic ram motor in pieces. Would this crankshaft fit, and increase cu in to...what? And would the 284 Street Hemi cam be correct for the resulting combo? Thanks.

The crank will fit and would yield 456" with a stock 4.18" bore. Boring the 413 block .030" over would yield 462"

A Hemi cam is not the same as a B or RB cam, so on that one I am going to say No.

Thanks,
Tom
 

PROSTOCKTOM

Well-Known Member
Feedback: 0 / 0 / 0
Local time
7:33 PM
Joined
Dec 10, 2013
Messages
87
Reaction score
57
Location
West Central Indiana
Well I hadn't planned to update this anymore, but deal has been extended through October 31st now. So buy one before China shuts off the pipeline of low cost speed parts to the USA.

Tom
 

Top