Deck hight 351W ??

S

stang-69

New Member

Jun 5, 2003

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Sweden

Sep 20, 2007

#1

• Sep 20, 2007

• #1

Hi
I have a 351W engine block with tha cast# D1AE 6015 DA 5.
This is what I know about it:
D1 = 1971
AE = ??
6015 = ??
DA = ??
5 = ??

Actually I don´t care that much about all the numbers, my biggest question is.
What is the deck hight of this block?
I know that Ford changed the hight from 9.48 to 9.50 somewhere -71-72.
Is there any sure way to find out ?

B.T.W
Did u know that SRP doesn´t have their dome-pistons for std bore. It came as a surprise to me anyway.
I Think it´s foolish to have a block bored if it´s not necessary.

I could have the pistons custom made for the nice price of 920 USD and wait for 3-4 weeks.
(sorry, just getting a bit frustrated)

 

B

bnickel

Founding Member

Aug 21, 2002

5,640

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lubbock, texas

Sep 20, 2007

#2

• Sep 20, 2007

• #2

you have a 9.50 deck block. only the 69 and 70 blocks had the 9.48 deck. they are C9 and D0 castings so you're fine.

i have the same problem, i'm planning on building a long rod windsor and KB doesn't have a standard bore piston for that either.

 

D

D.Hearne

New Member

Sep 29, 2000

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south louisiana

Sep 20, 2007

#3

• Sep 20, 2007

• #3

You're only looking at a .020 difference in deck height. Not something to worry over. I quick pass on a mill will take that off and true up the surfaces. Nothing wrong with boring to the next size piston, I'd do that before spending the bank on custom pistons. 351W blocks aren't rare commodities.

 

B

bnickel

Founding Member

Aug 21, 2002

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lubbock, texas

Sep 20, 2007

#4

• Sep 20, 2007

• #4

the problem is that most of teh aftermarket pistons are made for the 9.5 deck block so the piston would stick up out of the hole if you use them in a 9.48 deck block.

KB willl actually tell you not to use their long rod pistons in the early block for just that reason, though they tell you it doesn't leave anything for decking the block.

 

D

D.Hearne

New Member

Sep 29, 2000

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south louisiana

Sep 20, 2007

#5

• Sep 20, 2007

• #5

In that case, mill the pistons .020 Seems to me there would be shorter 351 pistons as there are with the 289/302's. 289/302 pistons that are ..020 shorter are common (1.585 pin height)

 

65ShelbyClone

Founding Member

Sep 9, 2000

4,675

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119

Antelope Valley, SoCal

Sep 21, 2007

#6

• Sep 21, 2007

• #6

D.Hearne said:

Nothing wrong with boring to the next size piston, I'd do that before spending the bank on custom pistons. 351W blocks aren't rare commodities.

Click to expand...

Maybe here, but I doubt they grow on trees in Sweden. Still, I agree and would opt for the less expensive oversize pistons.

 

H

htwheelz67

Member

May 18, 2007

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mission viejo ca.

Sep 21, 2007

#7

• Sep 21, 2007

• #7

I decked my 94 block to 9.48 to get the pistons at zero deck on my 408, I dont think there is a problem with pistons, I beleive all stock style pistons for 351w's are based on the early design and are a little down in the hole in later blocks, I maybe wrong but the 69 351w's I have built the pistons were near zero, I think when there is problems is when using a 69 block which has been decked and is lower than 9.48.

 

B

bnickel

Founding Member

Aug 21, 2002

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lubbock, texas

Sep 21, 2007

#8

• Sep 21, 2007

• #8

in my case the problem is that the pistons i want to use aren't a stock style piston, it's basically a custom piston that just happens to be available off the shelf.

 

H

htwheelz67

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May 18, 2007

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mission viejo ca.

Sep 21, 2007

#9

• Sep 21, 2007

• #9

look at the pin height comapred to a stock 69 piston............

 

B

bnickel

Founding Member

Aug 21, 2002

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lubbock, texas

Sep 22, 2007

#10

• Sep 22, 2007

• #10

htwheelz67 said:

look at the pin height comapred to a stock 69 piston............

Click to expand...

it's moved up about 1/2 an inch