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engine swap v8 to v6 truck #2377986 09/27/17 10:10 PM 09/27/17 10:10 PM
Joined: Mar 2005 Posts: 3,138 Central NC gch OP master
gch OP master Joined: Mar 2005 Posts: 3,138 Central NC	I can get a very nice 89 short bed truck with a 3.9 manual trans.What would be any hurdles to swapping the 360 out of my 87 long bed automatic truck? Will the manual trans bolt up? Any other issues? Thanks.

Re: engine swap v8 to v6 truck [Re: gch] #2378022 09/27/17 11:33 PM 09/27/17 11:33 PM
Joined: Jan 2003 Posts: 16,808 Between Houston & Galveston TX SattyNoCar Smarter than no class Flappergass by a mile
SattyNoCar Smarter than no class Flappergass by a mile Joined: Jan 2003 Posts: 16,808 Between Houston & Galveston TX	Are you trying to make a slow truck? 3.9's get about the same MPG as a 5.2. Also, it's getting to the point even stock replacement parts for the 3.9 are drying up. John The dream is dead, long live the dream.......😥

Re: engine swap v8 to v6 truck [Re: SattyNoCar] #2378158 09/28/17 09:37 AM 09/28/17 09:37 AM
Joined: Dec 2007 Posts: 2,682 Des Moines IA S Soopernaut master
Soopernaut master S Joined: Dec 2007 Posts: 2,682 Des Moines IA	Originally Posted By Satilite73 Are you trying to make a slow truck? 3.9's get about the same MPG as a 5.2. Also, it's getting to the point even stock replacement parts for the 3.9 are drying up. He wants to go the other way, 3.9L to 5.9L. 1970 Dodge d100/eventually going on a 77 D100 frame

Re: engine swap v8 to v6 truck [Re: gch] #2378315 09/28/17 03:20 PM 09/28/17 03:20 PM
Joined: Sep 2003 Posts: 7,831 east side of Ohio basketcase master
basketcase master Joined: Sep 2003 Posts: 7,831 east side of Ohio	i swapped the V6 5 speed from in my '88 to the 318 auto from my '87. The drivers side motor mount had to be fabbed, and one of the trans cross member bolt hole didn't line up. And since I was going from a manual to automatic, I swapped the steering columns, which required the dash harness as well since the '88 had the dimmer and wipers on the turn signal switch. Dave 1981 Dodge D150 360 auto

Re: engine swap v8 to v6 truck [Re: gch] #2378610 09/29/17 01:09 AM 09/29/17 01:09 AM
Joined: Jan 2003 Posts: 10,527 Freeport IL USA poorboy I Live Here
poorboy I Live Here Joined: Jan 2003 Posts: 10,527 Freeport IL USA	The 3.9 manual trans stuff will bolt up to the 360, but the flywheel won't have the offset balance the 360 requires. You will need a 360 flywheel. All the other manual trans stuff should work. Do you know which manual trans is in the 89 truck? There may be wiring/computer issues you will have to deal with, an 89 could tbi or carb. Gene

Re: engine swap v8 to v6 truck [Re: Soopernaut] #2378612 09/29/17 01:09 AM 09/29/17 01:09 AM
Joined: Jan 2003 Posts: 16,808 Between Houston & Galveston TX SattyNoCar Smarter than no class Flappergass by a mile
SattyNoCar Smarter than no class Flappergass by a mile Joined: Jan 2003 Posts: 16,808 Between Houston & Galveston TX	Originally Posted By Soopernaut Originally Posted By Satilite73 Are you trying to make a slow truck? 3.9's get about the same MPG as a 5.2. Also, it's getting to the point even stock replacement parts for the 3.9 are drying up. He wants to go the other way, 3.9L to 5.9L. I saw the subject line V8 to V6....... I got it now..... John The dream is dead, long live the dream.......😥

Re: engine swap v8 to v6 truck [Re: SattyNoCar] #2379209 09/30/17 10:19 AM 09/30/17 10:19 AM
Joined: Feb 2006 Posts: 2,262 Groveland, MA SteveS top fuel
SteveS top fuel Joined: Feb 2006 Posts: 2,262 Groveland, MA	Originally Posted By Satilite73 Originally Posted By Soopernaut Originally Posted By Satilite73 Are you trying to make a slow truck? 3.9's get about the same MPG as a 5.2. Also, it's getting to the point even stock replacement parts for the 3.9 are drying up. He wants to go the other way, 3.9L to 5.9L. I saw the subject line V8 to V6....... I got it now..... Me, too. Steve Someday I'll have another C-body.

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