year model
Thread Starter
|
Senior User
Joined: Jul 2006
Posts: 493
Likes: 0
year model
How can i find out what year my motor is?I just got the motor.The guy said it is a 390 with factory 4 bbl heads and intake.He also said it only has 2100 miles on it since it was total rebuilt.But he didnt know the year of the motor.Thanks Tony
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Date code on the block behind the oil filter adapter will tell the exact year the block was cast. The head date code is inside the valve cover. And 2 bbl & 4bbl---no difference in the heads. That sounded like sales hype to get you to cough up more cash. 
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
Likes: 2
From: CT
Actually block date code is below the oil filter adapter not behind. Head date code is between the center 2 valve springs under the VC's. Just to clear that a bit as it sounded like the head date code was in the valve covers!! LOL 
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
Likes: 2
From: CT
You can also check the stroke easy enough to verify 360 vs 390. Other than that if she runs good enjoy the truck.
Trending Topics
Thread Starter
|
Senior User
Joined: Jul 2006
Posts: 493
Likes: 0
Ok this is what i found,The number on the heads are 3M11 and 4A16 and the block number below the oil filter adaptor is 4M82.So what does this say?And does the head have the same number?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic 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
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Heads would be December 11 1973 (3M11) and January 16 1974 (4A16) If the block is a 70's casting then it's a year later casting December 1974, the "82" doesn't jive for the day of the month, maybe it should be "22" ?
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Originally Posted by FFR428
Actually block date code is below the oil filter adapter not behind. Head date code is between the center 2 valve springs under the VC's. Just to clear that a bit as it sounded like the head date code was in the valve covers!! LOL
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
Likes: 2
From: CT
The heads 3M11 is 73/Dec/11th and 4A16 is 74/Jan/16th. Providing the block is a D3 block it has a 74/Dec/?? date code. That 82 is not correct. The last one or two numbers is the day of the month it was cast. I'd say the heads are possibly original to each other being a little over a month apart. The block is a year off tho. So either the block or heads are original. You'd have to find the build date of your truck to see which is closer to the date codes you have. Typical time frames are 30-90 days apart for engine date codes from the build date of the truck.
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
Likes: 2
From: CT
Originally Posted by baddad457
Heads would be December 11 1973 (3M11) and January 16 1974 (4A16) If the block is a 70's casting then it's a year later casting December 1974, the "82" doesn't jive for the day of the month, maybe it should be "22" ?
yep ya type faster than I do!!! LOL
Thread
Thread Starter
Forum
Replies
Last Post
Jmatthews
General NON-Automotive Conversation
51
Sep 30, 2014 06:41 PM
excavator
1999 - 2003 7.3L Power Stroke Diesel
9
Mar 10, 2014 07:04 PM
smash fascism
1994.5 - 1997 7.3L Power Stroke Diesel
9
Aug 19, 2012 08:22 AM
