Need Swap Information Now
Thread Starter
|
Junior User
Joined: Mar 2005
Posts: 78
Likes: 0
From: Warsaw, In
Need Swap Information Now
I have a 68 390 truck engine now. It needs overhauled and I have a chance to buy a 76 360 truck engine with fresh overhaul cheaper than I can rebuild mine. My question is: Will the Flywheel, bell housing, harmonic balancer and the vertical adapter for the oil filter on my 68 390 be directly installed on the stock 76 360 engine that I'm considering buying. Thanks, I need to know tonight.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Yes, it will swap right in, but I'd keep the 390 around and rebuild it as funds become available. I think you'll be disappointed by the performance of the 360. It'll work fine for a daily driver, but the loss of power will bug you every time you drive it. I'd also look for a 4V intake and carb, along with headers. This should negate the loss of power, you may even gain some over the stock 390.
When you're ready to rebuild the 390, ask for options on modification. They can be built for almost any purpose with some relatively simple changes.
When you're ready to rebuild the 390, ask for options on modification. They can be built for almost any purpose with some relatively simple changes.
Thread Starter
|
Junior User
Joined: Mar 2005
Posts: 78
Likes: 0
From: Warsaw, In
I bought the 360 engine. It has new pistons and rings, cam and lifters, rebuilt D2TE-AA heads, new rods and was bored .030 over. It's got a .010 under reground crank and bearings but while it's sitting on the engine stand, I thought I'd order a rebuilt 390 crank and bearings. I already have a new 500 cfm holley and I want to keep the 2 barrel intake.
My question now is: Do I NEED another cam ( if so, which one ) and do I NEED to have 390 rods to keep from having to run a higher octane gas. Also, what kind of horsepower am I looking at with this setup.
Don't laugh but my objective is to have the most horsepower possible while maintaining good gas mileage and burning 87 octane gas.
My question now is: Do I NEED another cam ( if so, which one ) and do I NEED to have 390 rods to keep from having to run a higher octane gas. Also, what kind of horsepower am I looking at with this setup.
Don't laugh but my objective is to have the most horsepower possible while maintaining good gas mileage and burning 87 octane gas.
Thread Starter
|
Junior User
Joined: Mar 2005
Posts: 78
Likes: 0
From: Warsaw, In
Bear,
Didn't they used to have a 485 cfm 4 barrel on a early 390 that had more horsepower than a truck 390. I'm probley wrong, but if that's the case, what's wrong with a 500 cfm holley. My old 335 horse fairlane got 15 mile per gallon and used a 600 cfm holley, that's if I stayed out of the back two. Even then I thought it ran very well.
Didn't they used to have a 485 cfm 4 barrel on a early 390 that had more horsepower than a truck 390. I'm probley wrong, but if that's the case, what's wrong with a 500 cfm holley. My old 335 horse fairlane got 15 mile per gallon and used a 600 cfm holley, that's if I stayed out of the back two. Even then I thought it ran very well.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
Originally Posted by JimNolan
Bear,
Didn't they used to have a 485 cfm 4 barrel on a early 390 that had more horsepower than a truck 390. I'm probley wrong, but if that's the case, what's wrong with a 500 cfm holley. My old 335 horse fairlane got 15 mile per gallon and used a 600 cfm holley, that's if I stayed out of the back two. Even then I thought it ran very well.
Didn't they used to have a 485 cfm 4 barrel on a early 390 that had more horsepower than a truck 390. I'm probley wrong, but if that's the case, what's wrong with a 500 cfm holley. My old 335 horse fairlane got 15 mile per gallon and used a 600 cfm holley, that's if I stayed out of the back two. Even then I thought it ran very well.
Trending Topics
Postmaster
Joined: Nov 2002
Posts: 3,447
Likes: 1
From: Littleton, CO
With the taller pistons, I think you are going to have to go with the 390 rods. The cam you probably would want has a grind similar to the Crane 901. Check your current cam specs before ordering a new one though.
Just my $.02's --Mike
Just my $.02's --Mike
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
Thread Starter
|
Junior User
Joined: Mar 2005
Posts: 78
Likes: 0
From: Warsaw, In
Thanks for all that input. I've decided that the crank and rods will be 390, the pistons will be 360 and the cam will be the 901. I'm looking for a 4 barrel intake also. Hopefully it'll run on 87 octane with 9.5 compression and I won't have to change anything else. If anyone has something to add, something I missed, please do. I need all the help I can get. Oh yes, has anyone got an idea of how many horsepower this setup would have using D2TE-AA heads and stock exhaust.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
I'd rethink the cam selection. I have a larger cam in my 390 (343941), and I had pinging problems on 89 octane. Your compression should be close to what mine is, since I'm using TRW L2291 pistons which are very close if not identical to 360 pistons dimensionally, except the TRW's are forged. Now my motor is really touchy when it comes to timing and gasoline octane, but I did get the problems worked through and it runs good now. Should you go with a smaller cam (343901) I really think you'll have serious problems with pinging. I'd look for something larger like the 343941.
Let me know your decision and I'll run some HP numbers through Desktop Dyno.
Let me know your decision and I'll run some HP numbers through Desktop Dyno.
Thread Starter
|
Junior User
Joined: Mar 2005
Posts: 78
Likes: 0
From: Warsaw, In
Rusty,
I broke down and started figuring compression ratio, etc. You're right, there's no way I can run that setup and buy gas at the same time. I'll have to think about what I want to do next. Sounds like a 390 stock with 2 barrel is my only way out. For years the flying community has been hearing about the 82 octane gas which will take the place of all unleaded gasoline. I think with these oil prices we may see something like that. When I rebuilt my 0-320 I went to high compression pistons for 10 horsepower. I may wish I hadn't done that. Thanks for letting me know what your engine needed.
I broke down and started figuring compression ratio, etc. You're right, there's no way I can run that setup and buy gas at the same time. I'll have to think about what I want to do next. Sounds like a 390 stock with 2 barrel is my only way out. For years the flying community has been hearing about the 82 octane gas which will take the place of all unleaded gasoline. I think with these oil prices we may see something like that. When I rebuilt my 0-320 I went to high compression pistons for 10 horsepower. I may wish I hadn't done that. Thanks for letting me know what your engine needed.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Oh, you can run your setup, just step it up to the 343941 cam and it'll work fine. You see, the bigger cam builds less compression in the cylinders because it closes the intake valve later. Mine works great now, and I see no reason not to recommend it. However, I was simply pointing out that with a smaller cam than I am using, I may not have been able to sort it out.
Sorry if I caused any confusion.
Edit: Alternatively, you could run dished pistons with the 1.76" compression height. These will lower your compression ratio to a level perfect for the 343901 cam. It will still be above stock, probably around 9.0:1.
82 octane??? yuck!
Sorry if I caused any confusion.
Edit: Alternatively, you could run dished pistons with the 1.76" compression height. These will lower your compression ratio to a level perfect for the 343901 cam. It will still be above stock, probably around 9.0:1.
82 octane??? yuck!
Last edited by rusty70f100; Apr 9, 2005 at 06:51 PM.
Thread Starter
|
Junior User
Joined: Mar 2005
Posts: 78
Likes: 0
From: Warsaw, In
UPDATE
I switched engines, (oil burning 390 to completely rebuilt 360 ) and I don't have the blue smoke coming out the back of my 57 Fairlane any more. I also don't have the power to make blue smoke. I'll use this engine this summer, (runs absolutely beautiful ), but I'll rebuild my 390 in the mean time. For anyone considering a 360 over a 390, Don't. I had no idea I'd be losing that kind of power. By the way, I paid $500.00 for the 360 engine with rebuilt D2TE heads and rocker assembly, 30 over remanufactored block, new pistons, 10 under reground crank, new cam and lifters, new timing gears and chain and it was completely assembled. That's why I bought it.
I switched engines, (oil burning 390 to completely rebuilt 360 ) and I don't have the blue smoke coming out the back of my 57 Fairlane any more. I also don't have the power to make blue smoke. I'll use this engine this summer, (runs absolutely beautiful ), but I'll rebuild my 390 in the mean time. For anyone considering a 360 over a 390, Don't. I had no idea I'd be losing that kind of power. By the way, I paid $500.00 for the 360 engine with rebuilt D2TE heads and rocker assembly, 30 over remanufactored block, new pistons, 10 under reground crank, new cam and lifters, new timing gears and chain and it was completely assembled. That's why I bought it.