Aluminum block

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96mark8

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All mark VIII are aluminum blocks right? i always thought that aluminum blocks were better then iron cuz they are lighter and don't rust right? then why are the mustang gt500 and gt500kr iron and the mustang gt is aluminum. wich is better.
 
There are two Ford aluminum blocks: Teksid, which was a 6-bolt main produced and imported from Italy- and Windsor Aluminum plant (WAP), which as the name suggests, is cast in Windsor, Ontario, and is a 4-bolt main. The Lincoln Mark VIII and 96-98 Mustang Cobra have Teksid blocks. All other RWD Fords have the Windsor aluminum plant. Both weigh less than 90 lbs, and it is generally recognized that the WAP block is the lighter choice. Both blocks will withstand 700 HP.

Aluminum block is better for weight purposes. The reason the blown Modulars are iron is because the aluminum blocks did not prove to withstand rugged durability tests in the development labs. That doesn't go on to say that the aluminum block will die if you blow it- but Ford made that call for that reason and one other more important reason: cost. The iron block is cheap, durable, can withstand just as much power as aluminum, and can be produced at a fraction of the cost.
 
Quotes from Sean Hyland Motorsport:

" SHM have successfully used the '96-'98 Cobra aluminum block as a basis for drag-race engines of up to 1500 hp. This block, part number F6LZ-6010-AB was also used in the '93-'98 Lincoln Mark VIII. Originally this block was cast in Italy by Teksid, a supplier to Ferrari and others. The block is cast in 319 modified aluminum alloy before it is heat treated and aged... Overall, we have achieved good results with this light weight 85.40lbs alloy block "

" The Teksid block is the strongest production aluminum case available "

To put the weight into perspective, a typical 4.6 iron block weighs 154lbs!
 
I hate to tell you but all the machining was done in the Romeo engine plant and only the block was cast by Teksid. The grading of cast aluminum is includes a percentage of silica which is sand like and very hard. Alot of the tools in the machining lines need to be diamond tipped for longevity, but hard means also brittle so with narrow cross section on threads they easily break off, so that will cause thread failure. They probable should of helicoiled this maintance item for sake of thread life, but we all know that cost money.
 
thanks so bacicly the iron one is more derable but the alumimum is almost as strong
 
our thick wall 93-98 teksid blocks are preferred over later'01-light weight blocks
 
From what I understand, Ford originally had the Teksid block being made for them, but contract expired and Ford decided to produce the block themselves so they could save money. The Ford made block ended up not being as strong as the original Teksid block and obviously not as strong as the iron one, so with only the Ford aluminum or iron blocks to choose from for their high horsepower beasts that are the 03-04 cobra stang, the GT500 and the Ford GT, they had to go with the iron block, for reliability reasons. The Teksid is just as strong and reliable as the iron block, from what I understand, as well as being lighter. This is why the Teksid blocks are the most desirable to use.
 
was the Teksid block in marks all years and they were mixed with windor blocks? is teksid in lsc only or is it just randomize wich car they are in?

sry i know that was one F***ed up sentence
 
All Mark VIII's have the teksid block. 93-95 years are a different casting than 96-98 and there are minor differences but they are all Teksid.
 
save money 2 cams are a lot cheaper than 4 and alot less valves to go in to the pistons when the chain breaks love these interference motors
 
even more money saved [geo metro] we are way off the topic now
 
shagdrum said:
From what I understand, Ford originally had the Teksid block being made for them, but contract expired and Ford decided to produce the block themselves so they could save money. The Ford made block ended up not being as strong as the original Teksid block and obviously not as strong as the iron one, so with only the Ford aluminum or iron blocks to choose from for their high horsepower beasts that are the 03-04 cobra stang, the GT500 and the Ford GT, they had to go with the iron block, for reliability reasons. The Teksid is just as strong and reliable as the iron block, from what I understand, as well as being lighter. This is why the Teksid blocks are the most desirable to use.
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the ford GT has an aluminum block.
 
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