swapping 360 for a 460
Thread Starter
|
New User
Joined: Jul 2005
Posts: 19
Likes: 0
swapping 360 for a 460
i have a '71 3/4 ton highboy p/u. i've been trying to replace a 360 ci engine with a 460 ci engine. i've bolted the bell housing on before putting it in and the engine turned over. after putting engine in truck with about 3/8" gap between bell housing and back of engine the engine locks up i can't see where anything is rubbing or binding up can anyone give me any suggestions? i would appreciate it cause i'm out of ideas thanks. Vern
Last edited by vernsfords; Jul 2, 2005 at 07:32 PM.
Elder User
Joined: Mar 2004
Posts: 976
Likes: 0
From: SOUTH CAROLINA
i assume that its a manual trans by stating you bolted up the bellhousing once before. is the input shaft aligning with the splines in the clutch correctly? and if its an automatic you might not have the torque convertor seated all the way onto the input shaft. that will stop it from closing up on the back of the block. if you try to force it you will destroy the front pump. spin the convertor as you push it back. there are two seperate sets of splines in the convertor. hope this is some help.
Moderator
Joined: Dec 2003
Posts: 97,598
Likes: 2,008
From: Saskatoon, Saskatchewan
Hopefully you have the correct cluch disk. Most likely the splines on the input shaft are not going in thru the cluch disk or the throw out bearing holder isn`t in place. Sometimes I need to step on the cluch petal when installing the motor/transmission to help with the alignment.
FTE Leadership Emeritus
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
...Welcome Vernsford, to Ford Truck Enthusiasts! Please read the Guidelines, it will help you to navigate through and understand this site.
We are happy you have chosen the best source for Fords!
Enjoy FTE....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.
We are happy you have chosen the best source for Fords!
Enjoy FTE....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.
Postmaster
Joined: Sep 2004
Posts: 3,166
Likes: 2
From: wi
do ya have a diafram clutch or a 3finger clutch either if ya have the 3finger one its probably hittin the bell a diafram wont hit then if the pilot bushing sits toward the end of the crank itll hit the splines when i do the 460 swap i use a pilot bushing for a 302 from mid 70's it gos in farther its funny a 360 pilot will fit but itll sit at the end and a 302 pilot is small and itll fit to just in ferther dos you clutch fork have a clip style or the ball style?
Trending Topics
Thread Starter
|
New User
Joined: Jul 2005
Posts: 19
Likes: 0
thanks for helping
i have taken the driveshaft off so that tells me that since i can't see any scarrin on the bell housin and it doesn't lockup when i bolt the bell up, out of the truck that its not hittin the bell housin. since i've dropped the driveshaft am i thinking right that it should turn over even if the splines or clutch don't line up which i feel certain they are. that leaves me to think the splines on the clutch are hittin the shaft that the throwout bearin slides on let me know if i'm wrong i'm using a 3 finger clutch and the flywheel is off the 360 will the balance be off i was told it would'nt be thanks vern
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Moderator
Joined: Dec 2003
Posts: 97,598
Likes: 2,008
From: Saskatoon, Saskatchewan
Check the 460 engine forum, there are some knowledgeable members there and you will get an answer quick. Go into the forums listing and go down the list about 1/2 way. Good luck and let us know what happens. 
Freshman User
Joined: Jul 2004
Posts: 30
Likes: 0
Considering that the motor turns with the clutch and bellhousing installed, and the tranny is about 3/8" from seating all the way, it sounds like the pilot bushing in the crank is the wrong size. When you attempt to tighten the tranny down you are pushing the crank forward in the block and pining it against the thrust bearing not allowing the motor to turn.
Look at the clutch alignment tool that you used, and compare the part that fits inside the pilot bushing with the input shaft on the tranny you're using. It's also possible that the front of the input shaft where it mates to the pilot bushing is to long, and would need to be trimmed down.
Look at the clutch alignment tool that you used, and compare the part that fits inside the pilot bushing with the input shaft on the tranny you're using. It's also possible that the front of the input shaft where it mates to the pilot bushing is to long, and would need to be trimmed down.
