Ford "D Block"? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

Brut33 · 11-13-2005, 17:37

Anyone able to tell me if they know of crate and/or "Ford D Block" (I think they are called) motors that you can buy here in Australia? I am interested in a 351 Cleveland naturally aspirated style.

xagt_coupe · 11-14-2005, 01:26

Try e-bay, or someone in the us. here they will cost heaps. why not just get a square block

Brut33 · 11-14-2005, 14:12

Excuse my ignorance but what is a square block?

jg66me · 11-14-2005, 15:01

Quote:

Originally Posted by Brut33

Excuse my ignorance but what is a square block?

A 1972 Cleveland as opposed to a 1970. Much more common. "D" blocks were used in XW, XY and XA up until about June/July 1972.

Steve

XAFALCONGS · 11-14-2005, 17:03

Quote:

Originally Posted by jg66me

A 1972 Cleveland as opposed to a 1970. Much more common. "D" blocks were used in XW, XY and XA up until about June/July 1972.

Steve

Steve,

I thought all big port 4V motors were D blocks as they were all imported. If that is true then the D block was still available til Dec 73 in the 4spd equipped XB GTs.

--J

paull · 11-14-2005, 17:28

Quote:

Originally Posted by XAFALCONGS

Steve,

I thought all big port 4V motors were D blocks as they were all imported. If that is true then the D block was still available til Dec 73 in the 4spd equipped XB GTs.

--J

No, as stated above. The later XA's and all XB's, even the manual XB '73 cars, had the square blocks.

Paul

jg66me · 11-14-2005, 18:14

Quote:

Originally Posted by XAFALCONGS

Steve,

I thought all big port 4V motors were D blocks as they were all imported. If that is true then the D block was still available til Dec 73 in the 4spd equipped XB GTs.

--J

My XA GT is August 72 build with original engine, JG66ME16499K. It had the square block (D2AE-CA) with 4 "Dot" heads. I think Donnys XA is the same engine (Sept build isnt it Donny?). The D blocks (D0AE-J) got the 4V heads. 4"Dots" have a slightly larger combustion chamber (still closed chamber). I think compression is 1/2 a point lower.

Steve

jas24zzk · 11-15-2005, 04:18

And here i was sitting on my squat under the belief that D blocks had 4 bolt mains and Square blocks had 2 bolt.

Anyone to correct what i may have been mis-informed??

Jas

northey · 11-15-2005, 11:43

Most D blocks are 2 bolt; if you come across a 4 bolter, it was more than likely done by someone after it left factory.

There is no strength difference between them. As others have said here before core shift in any block can be a problem resulting in thin cylinder walls. That applies to any brand though.

xagt_coupe · 11-15-2005, 15:51

Yes mine is a square block also. 9/72 dated. The CK617JI-W as fitted to the RPO 83's and early manual xb gt's was a square block.