351W blocks

SeventyMach1

Keep it lubed .... keep it straight .... and keep

Mar 30, 2005

1,940

3

36

North Carolina

Apr 7, 2006

#1

• Apr 7, 2006

• #1

How do you tell what 351 block is what? Are all '69 blocks casted C90E .... or were there other castings?

 

nmcgrawj

Advanced Member

Sep 28, 2003

3,651

4

68

Indianapolis, IN

Apr 7, 2006

#2

• Apr 7, 2006

• #2

Im pretty sure its just the C9 that tells u the year, or D4 for 74, E8 for 88 etc etc etc.

Is that what u wanted to know?

 

EXTRPR50

Founding Member

Oct 7, 1998

370

1

19

Apr 7, 2006

#3

• Apr 7, 2006

• #3

Hey, if youre gunning for a 351 block, try to get the 1st generation lightning block. It's a roller block.

 

SeventyMach1

Keep it lubed .... keep it straight .... and keep

Mar 30, 2005

1,940

3

36

North Carolina

Apr 7, 2006

#4

• Apr 7, 2006

• #4

Thanks for the info. guys. I've heard that a '69 block is the best you can get form 3 other guys. Is this true?

I was just wanting to know how I can tell if it's a 69 or not .... I guess your method works Nate.

I wish I could find a roller 351, lol.

 

nmcgrawj

Advanced Member

Sep 28, 2003

3,651

4

68

Indianapolis, IN

Apr 7, 2006

#5

• Apr 7, 2006

• #5

You dont want a roller. The whole point, well maybe not the whole point, but a big bonus to a 351 is the strength of it. Just invest in the good lifters to convert it to roller and run a 69-74 block. Those are the strongest you can get.

 

Joes95GT

New Member

Jan 23, 2003

3,132

1

0

Delaware

Apr 7, 2006

#6

• Apr 7, 2006

• #6

It's debatable whether or not the '69 blocks are THE strongest. They are one of the strongest for sure, but it seems that the '70-'74 blocks have stayed in one piece at the same horsepower levels and over extended periods of time.....just like the '69's have.

Joe

 

nmcgrawj

Advanced Member

Sep 28, 2003

3,651

4

68

Indianapolis, IN

Apr 7, 2006

#7

• Apr 7, 2006

• #7

Well i dont know the exact differences when comparing the 69-74s...the 69 has a shorter deck height doesnt it?

My point was just to say to get a 69-74...compared to 75-the 90's.

 

SWYZ721

Member

Aug 24, 2004

208

0

16

Ann Arbor, MI

Apr 7, 2006

#8

• Apr 7, 2006

• #8

What about the Dart 351 blocks, or the Ford Racing 351 blocks, how do those compare?

 

Joes95GT

New Member

Jan 23, 2003

3,132

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0

Delaware

Apr 7, 2006

#9

• Apr 7, 2006

• #9

SWYZ721 said:

What about the Dart 351 blocks, or the Ford Racing 351 blocks, how do those compare?

Click to expand...

No comparison.

Nate - from what I understand, the '69 blocks have a shorter deck height by 0.01" or so. It's almost negligible because if the piston is out of the hole by a few hundredths, it can be milled off to get the deck back to zero.

As for the differences, from what I've seen, it's in the main webbing. The webbing in the early blocks is much more beefy than in the roller blocks...

Joe

 

SorsCode

20+ Year Stangneter

Jun 10, 2003

1,024

434

113

St. Louis, MO

Apr 7, 2006

#10

• Apr 7, 2006

• #10

I didn't do the search for the 69 Block. I just got the 1996 Block so I didn't have to spend big bucks on the lifters. worst part is I still did Couldn't help it.