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  A deck height question

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Author Topic:   A deck height question
Calcat
Journeyman

Posts: 75
From: Los Angeles, CA
Registered: Feb 2002

posted 11-29-2002 01:13 PM     Click Here to See the Profile for Calcat   Click Here to Email Calcat     Edit/Delete Message   Reply w/Quote
Can anyone tell me what the deck height is on a 68 302. TIA

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V8 Thumper
Gearhead

Posts: 3529
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 11-29-2002 02:40 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
8.206", as with all 221-255-260-289-302 V8 Windsors

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1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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V8 Thumper
Gearhead

Posts: 3529
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 11-29-2002 03:18 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
...assuming of course that it hasn't been decked. That's the factory spec; likely to be plus or minus a few thou front to back and bank to bank

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1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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mstngjoe
Journeyman

Posts: 64
From: Oregon
Registered: Aug 2002

posted 11-30-2002 09:34 AM     Click Here to See the Profile for mstngjoe   Click Here to Email mstngjoe     Edit/Delete Message   Reply w/Quote
There are some 73-76 blocks that have a 8.229 deck height. These could lower cr if you don't compensate with pistons and/or heads.

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My Mustang
My next engine

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mustangboy
Gearhead

Posts: 670
From: Ont, Canada
Registered: Mar 2002

posted 11-30-2002 10:42 AM     Click Here to See the Profile for mustangboy     Edit/Delete Message   Reply w/Quote
mstgjoe is there anyway to identify one of these blocks?I just pulled a 74 302 and filed it away for future use.

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1968 mustang j-code [email protected] 306cu.in, stock ported heads,weiand exellerator,650 holley DP,hedman hedders,comp 292 Magnum cam,4-speed,8 inch 4.11 detroit locker

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n2oMike
Gearhead

Posts: 1590
From: Spencer, WV
Registered: Jan 2001

posted 11-30-2002 12:50 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
My D1ZM Mexican block had that 8.23" deck height... But had to be cut 0.058" down to 8.17" because of some #^%$% Probe pistons.

I hope there's still enough metal in the decks for the 1/2" ARP studs to keep the Loc-Wire gaskets in check when the 200hp shot of the bottle is letting it's presence be known.

Good Luck!

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Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220

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mstngjoe
Journeyman

Posts: 64
From: Oregon
Registered: Aug 2002

posted 11-30-2002 03:38 PM     Click Here to See the Profile for mstngjoe   Click Here to Email mstngjoe     Edit/Delete Message   Reply w/Quote
Mustangboy:
Two books I have both indicate 73-76 blocks with the taller height. Neither of them specifiy a given casting #. However, I would guess that D1, D4 and D5 blocks are all possible. I'm not even sure going strictly by the assembly date would be a valid way to confirm. I should think the only way to be sure is to have it measured by your machine shop.

N2OMike:
I'm glad you let me know about your Mex block. My Mex with an assembly date of 4K17 and a casting # of 75ZY-6015-AA has not been machined yet. I now wonder if mine too has the taller deck height.

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My Mustang
My next engine

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