Determine Motor Size
Thread Starter
|
New User
Joined: Aug 2009
Posts: 10
Likes: 0
From: Washington
Determine Motor Size
HELP! I was given a 1978 Ford pickup, F-150 4x4. It belonged to my father who passed away a few years ago and I would like to restore it. He replaced the motor with something other than the original and I have no idea how to determine the size. I am fairly certain it is a 360 or 390 but then again...
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
Welcome to the site:
There are a few ways to determine what you have. The FE engine was not available in the particular year, though it is possible that one could have been installed, but it is more likely that another series of engine would have gone in there.
Perhaps another 335 series, or maybe a 385 series.
DO you know how many valve cover bolts there are?
Have you any pictures of this engine?
There are a few ways to determine what you have. The FE engine was not available in the particular year, though it is possible that one could have been installed, but it is more likely that another series of engine would have gone in there.
Perhaps another 335 series, or maybe a 385 series.
DO you know how many valve cover bolts there are?
Have you any pictures of this engine?
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
First welcome to FTE
Here is a start to atleast figure out the engine family your dealing with.
Engine Identification:
=================
351C/M/400 335 series: 8 bolts in rectangular valve covers. Timing chain housing is part of block. Thermostat housing on block. Exhaust bolt holes diagonal.
351M/400 335 series: intake is 12.7" wide the 351C is narrow. The 351M and 400 are identical externally, only internal parts examination can tell them apart.
351W/302/5.0L 6 bolts on trapezoidal valve covers. Thermostat housing on intake. Exhaust bolt holes horizontal.
429/460 385 series: 7 bolts in rectangular valve cover
352/360/390/427/428 FE series: Intake goes under valve covers.
Here is a start to atleast figure out the engine family your dealing with.
Engine Identification:
=================
351C/M/400 335 series: 8 bolts in rectangular valve covers. Timing chain housing is part of block. Thermostat housing on block. Exhaust bolt holes diagonal.
351M/400 335 series: intake is 12.7" wide the 351C is narrow. The 351M and 400 are identical externally, only internal parts examination can tell them apart.
351W/302/5.0L 6 bolts on trapezoidal valve covers. Thermostat housing on intake. Exhaust bolt holes horizontal.
429/460 385 series: 7 bolts in rectangular valve cover
352/360/390/427/428 FE series: Intake goes under valve covers.
Thread Starter
|
New User
Joined: Aug 2009
Posts: 10
Likes: 0
From: Washington
351/400?
The valve cover has 8 bolts and the exhaust manifold bolts are angled diagonally downwards. Guessing this is the 335 series? Is there a way to narrow down to the exact motor? I would like to put a 4brl intake/carb on it as well as headers, etc. but are the parts interchangeable?
There is a lable on the valve cover with "KL606AB" not sure if that means anything. Sorry for all the questions...'new Ford fan"
Clint
There is a lable on the valve cover with "KL606AB" not sure if that means anything. Sorry for all the questions...'new Ford fan"
Clint
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
measure the intake width to determine for sure that it is NOT a 351C (should be over 12" across) that would leave 351M/400 and the only difference is the stroke then. You would need to somehow measure the stroke 4" = 400, 3.5" = 351
Senior User
Joined: Mar 2003
Posts: 259
Likes: 2
From: SOUTHERN NEW JERSEY
Also the 351m/400 has the 460 (big block) bell housing pattern. where as the 351c has the small block bell housing pattern.
There is a early 400 (70's) that has the small block bell housing pattern, but is a rare find.
There is a early 400 (70's) that has the small block bell housing pattern, but is a rare find.
Thread
Thread Starter
Forum
Replies
Last Post
treeves68
1973 - 1979 F-100 & Larger F-Series Trucks
4
Nov 29, 2010 12:54 PM
Reefmonster
1973 - 1979 F-100 & Larger F-Series Trucks
13
Jun 5, 2009 05:09 PM
chitown65
1948 - 1956 F1, F100 & Larger F-Series Trucks
4
Apr 15, 2004 07:49 AM
