427 Service Block?
Thread Starter
|
New User
Joined: Oct 2002
Posts: 20
Likes: 0
From: Casper, Wy
427 Service Block?
I recently came across an Fe motor and I am looking to verify what I think it is. The block has no casting number, vertical ribs on the side of the block near the oil pan mounting service. And a date code of 2M16. These numbers tell me it is a service block produced on Dec 16 of 1972. The heads have a casting number of C8AEH. According to my book thses are 68 std 360/390/428 w/AIR w/ 68.1-71.1 combustion chambers. However the problem is that the rear of the block is cast w/ a 66-427 (w/ a P over the 427). It also has all the cast bosses & bumbs(no machining) for a side oiler set-up. My gut tells me this is a 360 or 390 that was rebuilt in the early 70's w/ a service block. Am I wrong? I cant find any info on what the 66-427 or the side-oiler bosses mean. Is this block something special? Does it have enough meat in the cylinder walls to go to a 427 bore? I can get the entire engine for $100. Is it worth it? Thanks
Lead Driver
Joined: Apr 2001
Posts: 6,175
Likes: 21
From: Texas
does it have a crank in it? measuring the bore and stroke would get us headed in the right direction. if it has a 390/427 stroke, that will at least limit some options. although, there are lots of FE "Mutt" engines out there.
also, do a search in here for the drill bit test to see how much room you have in the cylinder walls.
as for the price. $100 can probably be made up in parting out a 360, if you put in a little work. So, yeah, I think it's worth a gamble. the "66-427" markings would be tempting enough for me.
also, do a search in here for the drill bit test to see how much room you have in the cylinder walls.
as for the price. $100 can probably be made up in parting out a 360, if you put in a little work. So, yeah, I think it's worth a gamble. the "66-427" markings would be tempting enough for me.
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
Likes: 2
From: CT
The sideoiler rear bulkhead was used on lots of blocks. Besides the 66-427 they have the rear sideoiler galley boss cast into it also. And if the date code has two dots under the first number it's for sure a 70's era casting. Ford used the sideoiler rear bulkhead qutie a bit on FE blocks for some reason. So what the owner is telling you is most likely true. You can gap the cyl wall cores to see aprox thickness through the freeze plug holes in the block. 360/390 blocks take a 17/64" drill bit. Some 406 and all 428's a 13/64" bit. And for a 427 either a 8/64" or 5/64" drill bit shank will fit snugly.
G.
G.
Thread Starter
|
New User
Joined: Oct 2002
Posts: 20
Likes: 0
From: Casper, Wy
Thanks for the info. The motor is complete from carb to oil pan and it does have the 2 dots in the date code. I am looking to start a new motor build for my crew cab and from what you are all saying this motor is most likely a good place to start for the $100. I will try and pull a freeze plug and try the drill bit test. Am I correct in assuming that the block was a service Block? And if so do the service blocks have any valuable features? Like heavier webs and etc?
Thanks
Thanks
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Get the casting number off of it. It'll be something like D3TE, C6ME, or something like that. Also, look on the front right hand side of it, where the "352" would normally be. Is there a "352" there, or a mirror image of a "105", or is there nothing there?
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
Likes: 2
From: CT
Didn't some 70's blocks have the casting number in or around the lifter valley? It was somewhere else other than the normal places on the side of the block. I remember someone here talking about that a good while back on a 70's block. So if the engine is assembled possibly that could be an option. Anyway yea for $100 you can't go wrong. You can either measure the stroke or look for the crank's casting number to be sure it's a 390 if you haven't yet.
Trending Topics
Thread Starter
|
New User
Joined: Oct 2002
Posts: 20
Likes: 0
From: Casper, Wy
The block has no casting number in the normal places. I've looked all over the block and found nothing except the date code. It does have the 352 cast on the front. Won't be able to do the drill bit test until next week. Thanks again
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
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
Thread
Thread Starter
Forum
Replies
Last Post
427mike
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
2
May 13, 2012 02:41 PM
66_in_ky
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
21
Oct 5, 2010 12:41 AM
bertha66
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
6
Jul 12, 2008 08:15 AM
arctic y block
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
26
Jan 30, 2007 08:48 PM
Racemaster33
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
18
Jan 5, 2007 11:18 AM
