352 or 390?
Thread Starter
|
New User
Joined: Sep 2002
Posts: 17
Likes: 0
352 or 390?
I was told this truck had a 390 in it, and that it had been bored .030 over. I think I verified the bore work b/c I can see the pistons are stamped .030 on top. The front drivers side of the block is stamped with two numbers, 31 over 352. Does this mean this is a 352? If so, and it is bored .030 over, what would the cubic inches be roughly? My last question is whether or not it is worth spending any more money on this motor, or should I find a true 390(assuming this is not). Any info on this would be greatly appreciated. Thanks guys for helping out a new comer.
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
352 or 390?
If you can see the pistons, do you have the heads off?
If so, then just measure the bore diameter.
352 = 4.00 bore (standard)
360, 390 = 4.05 bore (standard)
With your 30-over pistons, add .03 to these numbers. Might want to measure the stroke too.
Barry
If so, then just measure the bore diameter.
352 = 4.00 bore (standard)
360, 390 = 4.05 bore (standard)
With your 30-over pistons, add .03 to these numbers. Might want to measure the stroke too.
Barry
Thread Starter
|
New User
Joined: Sep 2002
Posts: 17
Likes: 0
352 or 390?
So how do you tell the difference b/w a 352 and a 390? No,
I don't have the heads off but when piston #1 is TDC I can see
the .030 on it. I have noticed alot of the parts for these two engines
are exactly the same. Can somebody help me figure this out short of removing the heads and measuring the cylinder?
I don't have the heads off but when piston #1 is TDC I can see
the .030 on it. I have noticed alot of the parts for these two engines
are exactly the same. Can somebody help me figure this out short of removing the heads and measuring the cylinder?
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
352 or 390?
jg, the easiest way is to measure the stroke. Drop a white jacketed wire through the spark plug hole. Have a bud turn the engine with a socket wrench while you mark the wire with a Sharpie. Measure the length of the mark and post it back here. We should be able to help then. 
http://www.clubfte.com/users/jowilker/USFlag.gif
John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member 0004 since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
http://www.clubfte.com/users/jowilker/USFlag.gif
John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member 0004 since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
Thread Starter
|
New User
Joined: Sep 2002
Posts: 17
Likes: 0
352 or 390?
The block is stamped C6ME-A(I think, it is hard to read). The heads are stamped C8AE-H. The intake is an Edelbrock aftermarket. I am trying to get my hands on someone to help me check the stroke length. Thanks for all your help.
Trending Topics
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
352 or 390?
Run of the mill block, 68 heads were used on 360s & 390s. The measure will help.
http://www.clubfte.com/users/jowilker/USFlag.gif
John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member 0004 since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
http://www.clubfte.com/users/jowilker/USFlag.gif
John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member 0004 since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
352 or 390?
3 1/2" stroke and 68 parts, looks likely you got a good ol 360.
http://www.clubfte.com/users/jowilker/USFlag.gif
John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member 0004 since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
http://www.clubfte.com/users/jowilker/USFlag.gif
John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member 0004 since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
New User
Joined: Sep 2002
Posts: 3
Likes: 0
352 or 390?
ya i had the same problem but mine was a 360 with a 352 stamped on it. i found out there all the same blocks and the diffence between a 360 and a 390 was the stroke since they have the same bore and the 360 valves are actually bigger than the 390. i had my 360 bored .30 and stroked with 390 crank and rods. it has unbelievable power you have a good motor either way
Junior User
Joined: Sep 2002
Posts: 75
Likes: 0
From: Monroe USA
352 or 390?
Sounds like exactly what I am doing... Right John? hehe :P
lata
CHRIS
>i had my 360 bored .30 and stroked with 390
>crank and rods. it has unbelievable power you have a good
>motor either way
lata
CHRIS
>i had my 360 bored .30 and stroked with 390
>crank and rods. it has unbelievable power you have a good
>motor either way
