Re: [Amc-list] 390 vs. 401 crank casting numbers ....

[Wrambler242@xxxxxxxxxxx]

You're correct in everything except the stroke on the 390-401 crank being the same.
If it was Greg would not be gaining 10cu.in. by using a 401crank over the 390 crank.

Not, 100% sure the 304 and 360 cranks are 100% the same, IIRC they are balanced different from the factory for the larger 360 pistons?  



--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrac II
" I realize that death is inevitable.
I just don't want to be around when it happens! "

 -------------- Original message ----------------------
From: "Armand Eshleman" <aje1@xxxxxxxxxxxxxxx>
> Greg,
> 
> I thought I read somewhere about clearance problems putting a 401 crank in a
> 304. Could you please confirm that the 401 crank and rods actually fit into
> the 304 block without interference problems?
> 
> Gang,
> 
> IIRC cast cranks have a very fine parting line,
> & forged cranks have a larger wider parting line
> 
> 304 and 360 used cast cranks, same stroke.
> 
> 390 and 401 are forged, same stroke.
> 
> Is this correct??
> 
> Can any 304 crank be used for the crank in a 360?
> 
> 
> 
> thanks,
> Armand
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "Greg Taylor" <amundaza@xxxxxxxxx>
> To: "AMC-LIST" <mail@xxxxxxxxxxxx>
> Sent: Monday, November 10, 2008 12:13 PM
> Subject: [Amc-list] 390 vs. 401 crank casting numbers ....
> 
> 
> Hey guys,
> Got news that the crank for my 304 stroker may indeed be a 401 crank,
> instead of the 390 crank ... which changes things a bit ... by +10 CID and
> perhaps a few $$$$ for the stroker build.
> 
> Does anyone on the list have casting numbers for the 390 and 401 cranks?
> 
> I bought this crank from Kenedy back around 1993 or 1994 for $390, new in
> the box with AMC bearings. It is the earlier "BW" crank, which I had the
> adapter machined into the rear flange, for the 727 tranny. Also had it cross
> drilled.
> 
> Thanks for the information, guys!
> 
> 
> 
> Sincerely,
> Greg Taylor :) <><
> Rochester Hills, MI
> 1989 Jeep Grand Wagoneer "TRMN8R2"
> 
> And the testimony is this, that God has given us eternal life, and this life
> is in His Son. He who has the Son has the life; he who does not have the Son
> of God does not have the life. - 1 John 5:11-12
> 
> 
> 
> 
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL:
> http://splatter.wps.com/pipermail/amc-list/attachments/20081110/8c9134e8/attachm
> ent.htm
> _______________________________________________
> Amc-list mailing list
> Amc-list@xxxxxxxxxxxx
> http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list
> 
> 
> 
> -- 
> No virus found in this incoming message.
> Checked by AVG.
> Version: 7.5.549 / Virus Database: 270.9.0/1778 - Release Date: 11/9/08 2:14
> PM
> 
> 
> _______________________________________________
> Amc-list mailing list
> Amc-list@xxxxxxxxxxxx
> http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list

_______________________________________________
Amc-list mailing list
Amc-list@xxxxxxxxxxxx
http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list