1970 engine size?
Thread Starter
|
New User
Joined: Feb 2004
Posts: 11
Likes: 0
From: Cleveland, Oh
1970 engine size?
I recently got a 1970 ford f-100 sport custom from ebay. The seller said that the engine was a 351, and original as far as he knew. There is a 360 sticker on the intake, and I just assumed it was a replacement part with an incorrect sticker (looks newer). However, I went to autozone for a new battery, and they said that they didn't have a 351 engine in the 1970 f-100 in their computer database. Does anyone know if they made a 351 for that year, or if I may have a 360? Thanks guys.
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Hi! Yes Ford mad two different 351's that year but none of them went into the trucks. You most likely have a 360 but count the number of valve cover bolts. Can you describe what that 360 sticker on the intake is all about?
Elder User
Joined: Sep 2002
Posts: 622
Likes: 0
From: Urbandale, Iowa
I'm guessing he means the sticker is on the air intake cover, not the intake manifold.
If the intake manifold / head surfaces mate under the valve covers, you have an FE engine - most likely 360, could also be 390, but who knows in a 34 year old truck? It could be any of the FE series.
You are looking for 5 bolts holding the valve covers on....
I just re-read this - "mating" - "under covers"? Freudians would have a field day....
If the intake manifold / head surfaces mate under the valve covers, you have an FE engine - most likely 360, could also be 390, but who knows in a 34 year old truck? It could be any of the FE series.
You are looking for 5 bolts holding the valve covers on....
I just re-read this - "mating" - "under covers"? Freudians would have a field day....
Thread Starter
|
New User
Joined: Feb 2004
Posts: 11
Likes: 0
From: Cleveland, Oh
Yeah, I was refering to the air intake cover where the 360 sticker was located. Ok, so if there are 5 bolts holding the valve covers on then it is most likely the 360? Thanks again
Elder User
Joined: Sep 2002
Posts: 622
Likes: 0
From: Urbandale, Iowa
5 bolts on the valve covers means an FE engine. In 1970, two FE's were offered in trucks - the 360 and the 390. More 360's than 390's.
Assuming that you KNOW the motor is original, and the 4th digit of your VIN is a Y, then you have a 360. If it's an H, you have a 390.
If you have an FE - but don't know for SURE it's an original engine, then you will have to check the stroke, or look at the crank stamping.
To check the stroke, put the number 1 cylinder at TDC, pull the #1 and #4 plugs. Put a dowel down each hole and make a mark on it. Measure the difference between marks - 3.5 inches is a 360, 3.75 (really 3.78) is a 390. Pulling the oil pan to look at the crank might be a bit much just to ID a motor in order to buy parts.
All that being said, if you can determine that you have an FE, you can tell the parts guy it's a 360 or a 390 - doesn't matter, they share the exact same block and bore. The only parts that are different are the pistons, rods, and crankshaft - and if you have to replace those, you can id it off the crank! Simple, huh?
Assuming that you KNOW the motor is original, and the 4th digit of your VIN is a Y, then you have a 360. If it's an H, you have a 390.
If you have an FE - but don't know for SURE it's an original engine, then you will have to check the stroke, or look at the crank stamping.
To check the stroke, put the number 1 cylinder at TDC, pull the #1 and #4 plugs. Put a dowel down each hole and make a mark on it. Measure the difference between marks - 3.5 inches is a 360, 3.75 (really 3.78) is a 390. Pulling the oil pan to look at the crank might be a bit much just to ID a motor in order to buy parts.
All that being said, if you can determine that you have an FE, you can tell the parts guy it's a 360 or a 390 - doesn't matter, they share the exact same block and bore. The only parts that are different are the pistons, rods, and crankshaft - and if you have to replace those, you can id it off the crank! Simple, huh?
Thread
Thread Starter
Forum
Replies
Last Post
LarryH1
1967 - 1972 F-100 & Larger F-Series Trucks
6
Nov 2, 2010 01:14 AM
tl1965
1967 - 1972 F-100 & Larger F-Series Trucks
2
Sep 25, 2008 04:43 PM
goodstiff88
1967 - 1972 F-100 & Larger F-Series Trucks
4
Feb 20, 2008 04:18 PM
