Block Markings / external ribs ?
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Block Markings / external ribs ?
Hello,
Working on my First FE (360) and I picked up an extra 390 for $100, and I was looking at the block.
I have heard there is an X cast into the HD/high nodularity blocks, and I have heard there are ribs on the outside of some 390 blocks.
Soooo... the 390 has nothing on the outside (from a 70 XLT) and my 360 has the ribs... I checked the stroke and they are 360 and 390 respecively.
What's going on? I realize at this late stage of the game these may not be original or even correct crank/block matches, but do the different markings on the block mean anything?
TIA,
Eric
3 Early Broncos
2 Early Mustangs
2 Lincoln Mark VIIIs
1 F250 Highboy
1 Driver - so many vehicles, so little time
Working on my First FE (360) and I picked up an extra 390 for $100, and I was looking at the block.
I have heard there is an X cast into the HD/high nodularity blocks, and I have heard there are ribs on the outside of some 390 blocks.
Soooo... the 390 has nothing on the outside (from a 70 XLT) and my 360 has the ribs... I checked the stroke and they are 360 and 390 respecively.
What's going on? I realize at this late stage of the game these may not be original or even correct crank/block matches, but do the different markings on the block mean anything?
TIA,
Eric
3 Early Broncos
2 Early Mustangs
2 Lincoln Mark VIIIs
1 F250 Highboy
1 Driver - so many vehicles, so little time
New User
Joined: Sep 2006
Posts: 9
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From: North east California
FE-FT Block
One of the best FE-FT block to rebuild is the "Mirror image 105" block. High nodularity and thick cylider walls...I've built several 428's out of them. The "105" is located where the"352" normaly is. Late in production,built as 330,360,361, 389,390,391.
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New User
Joined: May 2006
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Know of any pics online that I can look at? Be nice to know what I am looking for...
TIA,
Eric
TIA,
Eric
Originally Posted by M-HF950Cliff
One of the best FE-FT block to rebuild is the "Mirror image 105" block. High nodularity and thick cylider walls...I've built several 428's out of them. The "105" is located where the"352" normaly is. Late in production,built as 330,360,361, 389,390,391.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Originally Posted by M-HF950Cliff
One of the best FE-FT block to rebuild is the "Mirror image 105" block. High nodularity and thick cylider walls...I've built several 428's out of them. The "105" is located where the"352" normaly is. Late in production,built as 330,360,361, 389,390,391.
