[K7cobra]

i was looking around can couldent find the info i was looking for and when i did i got mixed answers is the intrenals in a 4v motor forged or not? i got something planed for the winter but i need to know this little bit of info so i know if i need to do a little bit of refreshing to the motor. and again my motor has 85k on it so i might refresh it any way let me know thanks.

[97_4V_Sleepa]

Hyperucraptic pistons, forged Crank, sinter forged powdered metal rods. the weakest link is the the rods. if you are going to stay stock bore, the stock pistons work fine. Get some eagle H-beams, total seal gapless rings and have the assy rebalanced. This setup is good to 700hp as long as the person who is tuning it knows what they are doing. they guy who did my first setup like this ended up smoking 2 of my pistons.

[SWEET2KSTANG]

^wrong on the pistons, they are hyper not forged. they are 3cc dished, ring placement is little lower from top than 99+ pistons. rods are the junk powdered rods, but the crank is forged.

[97_4V_Sleepa]

My bad on the pistons, after a closer look at the ones in the garage, they are hyper junk.
you are however wrong on the dish.
1993 thru 1998 used a 2.66cc dish
1999 thru 2002 used a 4.54cc dish

[SWEET2KSTANG]

depends on where you get the info. i have couple sets at the shop in the metal bin, i can go cc them to see what i get.

[terminated95svt]

correct me if im wrong but isnt the 4v motor from an 03 cobra have different internals then a 4v from a lets say mark v??? what vehicle is this motor out of???? or are u just referring to the one thats currently in ur mustang?

[SWEET2KSTANG]

the termi is a different motor. they recieved iron blocks as compared to earlier having aluminum. they also recieved forged pistons and manley rods. all the 96-04 cobra's got forged cranks, but the rods and pistons were still weaker stuff. the mark motors are teksids like the 96-98 cobra's, but they had 6 bolt cast cranks, same rods and pistons.

[97_4V_Sleepa]

here is a link for almost everything you need to know about a mod motor.
http://www.sullivanperformance.com/YVS450/tech/tech.htm

[acidtonic]

Originally Posted by SWEET2KSTANG the termi is a different motor. they recieved iron blocks as compared to earlier having aluminum. they also recieved forged pistons and manley rods. all the 96-04 cobra's got forged cranks, but the rods and pistons were still weaker stuff. the mark motors are teksids like the 96-98 cobra's, but they had 6 bolt cast cranks, same rods and pistons.

I agree with you here. Don't forget to mention the Iron block has a 4 bolt main compared to the aluminum teksid/wap motors which had 6 bolt mains.

Personally I'd say Teksid > Iron Cobra > WAP.
No wars on it however... just my opinion.

[SWEET2KSTANG]

^

although i did go with a WAP for my car. i deburred it, but just hope it will survive what i will be putting it through.

[K7cobra]

Originally Posted by terminated95svt correct me if im wrong but isnt the 4v motor from an 03 cobra have different internals then a 4v from a lets say mark v??? what vehicle is this motor out of???? or are u just referring to the one thats currently in ur mustang?

this is for my cobra i have a some plans for this winter and not going to say what they are. so i needed to know what the internals were. ill be tuning the car my self on a dyno i might just get the forged pistons and rods just to be safe thanks for the info.

[majorownage]

ALL mark viii's are 8 bolt cast cranks...