Difference In 96 Block And A 04 Block?

sonicblue · November 7th, 2006, 08:12 PM

is there any difference in a bare block out of a 96 gt and a 04 gt?

mdvaldosta · November 7th, 2006, 08:13 PM

Nothing that I know of, maybe something small like a timing cover bolt or something but fundamentally they should be identical and are certainly interchangeable.

sonicblue · November 7th, 2006, 09:46 PM

thanks. sounds good. i should be sending it out soon. i will post some pics when i get it back and everything else all assembled

phalcrow · November 8th, 2006, 08:12 PM

The 96-98 blocks have less dish in the pistons, how much, I don't know. Because the chamber of the PI heads are smaller, Ford went with a larget dish in the 99+ motors. I know that PI heads on a 99+ motor yields about 9.5:1 while the same heads on a 96-98 motor yields about 10.5:1 compression. Plus, some blocks are Windsor and some are Romeo castings. The differences are listed in this link: http://www.tccoa.com/articles/engine/index.html#
They are minimal and should not affect anything, excet maybe the bolt pattern for the driveplate.

November 7th, 2006, 08:12 PM	#1
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	Difference In 96 Block And A 04 Block? is there any difference in a bare block out of a 96 gt and a 04 gt? __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

November 7th, 2006, 09:46 PM	#3
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	thanks. sounds good. i should be sending it out soon. i will post some pics when i get it back and everything else all assembled __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

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November 7th, 2006, 08:13 PM	#2
mdvaldosta MM Fanatic 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,940 iTrader: 0 reviews	Nothing that I know of, maybe something small like a timing cover bolt or something but fundamentally they should be identical and are certainly interchangeable.

November 8th, 2006, 08:12 PM	#4
phalcrow Newbie Join Date: Nov 2006 Posts: 6 iTrader: 0 reviews	The 96-98 blocks have less dish in the pistons, how much, I don't know. Because the chamber of the PI heads are smaller, Ford went with a larget dish in the 99+ motors. I know that PI heads on a 99+ motor yields about 9.5:1 while the same heads on a 96-98 motor yields about 10.5:1 compression. Plus, some blocks are Windsor and some are Romeo castings. The differences are listed in this link: http://www.tccoa.com/articles/engine/index.html# They are minimal and should not affect anything, excet maybe the bolt pattern for the driveplate.

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