Previous Thread
Next Thread
Print Thread
318/340 swap question or two.......... #1154790
01/11/12 04:44 PM
01/11/12 04:44 PM
Joined: Apr 2003
Posts: 915
near New Haven, CT
F
fireeng Offline OP
super stock
fireeng  Offline OP
super stock
F

Joined: Apr 2003
Posts: 915
near New Haven, CT
I am swapping a 318/904 to a 340/727. I should say I'm paying to have this swap done. The 340 and 727 were together at one time, but they were dressed down and striped when I got them.

I'm trying to find out if the crossmember from the 904 will mount the 727 or do I need to locate one? If so, where is the place to buy?

Are the Brackets from the 318 for the alternator and power stering pump the same?

Will the power streering pump from the 318 work on the 340?

Is there a source to get motor mounts for the 340?

I have a floor shift, with the linkage from the 904 hook up to the 727 or is that different?

Any help, would be sweet...............Thx Scott


2016 Diesel Ram 3500 Mason Dump
1971 Challenger
2013 Jeep Wrangler
1979 Dodge Ram Power Wagon 400 Mini Pumper
My other car is a Fire Truck.
Re: 318/340 swap question or two.......... [Re: fireeng] #1154791
01/11/12 05:12 PM
01/11/12 05:12 PM
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 75,020
U.S.S.A.
Quote:

I am swapping a 318/904 to a 340/727. I should say I'm paying to have this swap done. The 340 and 727 were together at one time, but they were dressed down and striped when I got them.

I'm trying to find out if the crossmember from the 904 will mount the 727 or do I need to locate one? If so, where is the place to buy? yes the same

Are the Brackets from the 318 for the alternator and power stering pump the same? yes the same

Will the power streering pump from the 318 work on the 340? yes

Is there a source to get motor mounts for the 340? yes, the drivers engine bracket is different and available , everything else is the same

I have a floor shift, with the linkage from the 904 hook up to the 727 or is that different? Mostly all the same , the bracket to the trans tail may be different and also the shape of the linkage rod to the shifter lever on the trans .

Any help, would be sweet...............Thx Scott



Re: 318/340 swap question or two.......... [Re: JohnRR] #1154792
01/11/12 05:26 PM
01/11/12 05:26 PM
Joined: Apr 2003
Posts: 915
near New Haven, CT
F
fireeng Offline OP
super stock
fireeng  Offline OP
super stock
F

Joined: Apr 2003
Posts: 915
near New Haven, CT
That just about covers that..... thanks JohnRR

more to follow....


2016 Diesel Ram 3500 Mason Dump
1971 Challenger
2013 Jeep Wrangler
1979 Dodge Ram Power Wagon 400 Mini Pumper
My other car is a Fire Truck.
Re: 318/340 swap question or two.......... [Re: fireeng] #1154793
01/12/12 09:29 AM
01/12/12 09:29 AM
Joined: Apr 2003
Posts: 915
near New Haven, CT
F
fireeng Offline OP
super stock
fireeng  Offline OP
super stock
F

Joined: Apr 2003
Posts: 915
near New Haven, CT
How but the fuel pump?


2016 Diesel Ram 3500 Mason Dump
1971 Challenger
2013 Jeep Wrangler
1979 Dodge Ram Power Wagon 400 Mini Pumper
My other car is a Fire Truck.
Re: 318/340 swap question or two.......... [Re: fireeng] #1154794
01/12/12 11:39 AM
01/12/12 11:39 AM
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 75,020
U.S.S.A.
The fuel pump will interchange, but depending on it's age and type you may want to upgrade that.

Aside from the engine mount bracket difference on the drivers side, externally the 340 is the same as a 318, if it bolts to the 318 it will bolt to the 340.

Re: 318/340 swap question or two.......... [Re: fireeng] #1154795
01/12/12 11:52 AM
01/12/12 11:52 AM
Joined: Jun 2003
Posts: 21,439
It's a dry heat
gtx6970 Offline
Too Many Posts
gtx6970  Offline
Too Many Posts

Joined: Jun 2003
Posts: 21,439
It's a dry heat
I'm trying to find out if the crossmember from the 904 will mount the 727 YES

Are the Brackets from the 318 for the alternator and power stering pump the same? YES

Will the power streering pump from the 318 work on the 340? YES

Is there a source to get motor mounts for the 340? Used only as far as I know, but all you need is the drivers side engine bracket

I have a floor shift, with the linkage from the 904 hook up to the 727 YES

Re: 318/340 swap question or two.......... [Re: gtx6970] #1154796
01/12/12 04:21 PM
01/12/12 04:21 PM
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
C
can.al Offline
pro stock
can.al  Offline
pro stock
C

Joined: Feb 2009
Posts: 1,274
Ontario.Canada
..not sure but i think a 3/8" spacer will let you use the 318 driver side mount..
schumacker probably have a replacement

Re: 318/340 swap question or two.......... [Re: gtx6970] #1154797
01/12/12 04:21 PM
01/12/12 04:21 PM
Joined: Aug 2003
Posts: 461
Texas
Ron69rr Offline
mopar
Ron69rr  Offline
mopar

Joined: Aug 2003
Posts: 461
Texas
Do you have to reverse the cross member as the lengths of the 904 and 727 were different iirc. I do know that the 3 and 4 speeds are different and require a different cross member.

Re: 318/340 swap question or two.......... [Re: Ron69rr] #1154798
01/12/12 04:27 PM
01/12/12 04:27 PM
Joined: Jun 2005
Posts: 4,442
Texas
D
Daty Rogers Offline
World's Greatest Husband. I love you Robyn
Daty Rogers  Offline
World's Greatest Husband. I love you Robyn
D

Joined: Jun 2005
Posts: 4,442
Texas
Quote:

Do you have to reverse the cross member as the lengths of the 904 and 727 were different iirc. I do know that the 3 and 4 speeds are different and require a different cross member.




No, mount pointis the same.

-Daty

Re: 318/340 swap question or two.......... [Re: Daty Rogers] #1154799
01/12/12 07:29 PM
01/12/12 07:29 PM
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 75,020
U.S.S.A.
Quote:

Quote:

Do you have to reverse the cross member as the lengths of the 904 and 727 were different iirc. I do know that the 3 and 4 speeds are different and require a different cross member.




No, mount pointis the same.

-Daty




What he said . He will need a shorter driveshaft if that wasn't already mentioned .

Re: 318/340 swap question or two.......... [Re: JohnRR] #1154800
01/12/12 08:18 PM
01/12/12 08:18 PM
Joined: Jan 2003
Posts: 11,912
APACHE JUNCTION AZ
J
Joesixpack Offline
I Live Here
Joesixpack  Offline
I Live Here
J

Joined: Jan 2003
Posts: 11,912
APACHE JUNCTION AZ
mounts are avail on moparts.com small block engine parts for sale section.







Powered by UBB.threads™ PHP Forum Software 7.7.1