[jimmyblaze22]

Hey, I am trying to mod my stang in the right order and would like some input. I currently have K&N CAI, 70mm T/B, Accufab upper plenum, Ported Pi heads, Bullet stage 2.5 cams, Pi intake, Ram clutch, 3.73/s, Aluminum driveshaft, 30lb injectors, ect..... I was wondering if I could get a supercharger with this setup(want the KB twin screw) or if I should get the 03/04 Cobra shortblock first. And does that shortblock bolt right up to my 2v heads? what other mods would I need to make to make it work? Prolly an 8 bolt flywheel,right? Since it's and 8 bolt crank. I just figured that if I got that shortblock and match it with my brand new ported Pi head, I'd have a brand new engine which could handle the hp of all the mods including a supercharger. Thanks for any input.

[fsttang96]

If you are still running the 98 stock pistons with PI heads the compression will be to high to run a supercharger !! Some people have done it but you can only run 3 to 5 pounds of boost !!

[WickedSnake00]

Originally Posted by jimmyblaze22 Hey, I am trying to mod my stang in the right order and would like some input. I currently have K&N CAI, 70mm T/B, Accufab upper plenum, Ported Pi heads, Bullet stage 2.5 cams, Pi intake, Ram clutch, 3.73/s, Aluminum driveshaft, 30lb injectors, ect..... I was wondering if I could get a supercharger with this setup(want the KB twin screw) or if I should get the 03/04 Cobra shortblock first. And does that shortblock bolt right up to my 2v heads? what other mods would I need to make to make it work? Prolly an 8 bolt flywheel,right? Since it's and 8 bolt crank. I just figured that if I got that shortblock and match it with my brand new ported Pi head, I'd have a brand new engine which could handle the hp of all the mods including a supercharger. Thanks for any input.

Correct, you'll need a new flywheel to match the 8 bolt crank.

Your CR won't be ridiculously high, it should be in the 9.1-9.5:1 neighborhood. The Cobra pistons have the same dish (-17/18cc) as the SOHC GT. The difference in compression is due to the displacement in the heads. The DOHC's have a larger combustion chamber in the head. So basically you'll be at stock compression with SOHC heads, as opposed to 8.5:1 with the DOHC heads.

If you're too concerned you can always get a build shortblock from MMR or someone and pick your piston dish accordingly.

[97S281]

96-98 npi motors have a 10cc dish while 99-04 have a 17cc dish.

As opposed to buying a cobra shortblock and still having cast rods and pistons I would buy a new forged rotarting assembly for your existing block and get the CR that you want by adjusting the dish on your new pistons.

If you google "compression ratio calculator" you should get a fill in the blank form that will help you get where you want to go.

[WickedSnake00]

Originally Posted by 97S281 96-98 npi motors have a 10cc dish while 99-04 have a 17cc dish. As opposed to buying a cobra shortblock and still having cast rods and pistons I would buy a new forged rotarting assembly for your existing block and get the CR that you want by adjusting the dish on your new pistons. If you google "compression ratio calculator" you should get a fill in the blank form that will help you get where you want to go.

Well he's got PI heads, so PI head volume with a -17/18cc dish (03/04 Cobra pistons) should give him stock PI compression, around 9.5:1, if I'm thinking correctly. That shouldn't be too bad for boost. Lots of guys running a fair amount on stock PI compression.

I also assumed when he said Cobra shortblock he meant with the 03/04 forged rotating assembly.

[jimmyblaze22]

Thanks guys, and yeah, the whole reason I was gonna get the 03/04 cobra shortblock is so I'd have a forged rotating assembly(which they come with) which I assume will handle 750hp+. That way, I can run a little higher compression and still run boost. I'd get a meth injection system or intercooler too. Now, as far as bolting this shortblock up, will all my parts bolt onto the terminator and I'll be ready to roll? Like oil pan, heads, timing system, ect.... except for the 8 bolt flywheel. Thanks for all the input

[Speedstang302]

dont waste your time on stock crap ive seen the stock termi shortblocks go with 400rw...HE HAS PI HEADS right now if he was to bolt a blower too it..his 10.5:1 is too high a tuner cant save that....now yes if he does swap the shortblock out depending on his piston choice he could be very safe...kenne bell sells 2v pi blowers no npi anymore...so you dont need to swap to 4v heads to get a kb...and you sure as hell dont need a 4v shortblock..plus you dont want that low a compression..9-9.5:1 would be ideal...i say talk to mmr about building a shortblock..i mean idk where you are finding a termi shortblock but there not 700+ hp capable and knowing ford racing its WAYY over priced..for $2500 you could have a real forged shortblock or for less build your own...

[Jaa1456]

How much power are the 99-01 blocks rated for? I see the termis running 500 and up all the time.

[WickedSnake00]

Originally Posted by Jaa1456 How much power are the 99-01 blocks rated for? I see the termis running 500 and up all the time.

Blocks or shortblocks? The 99/01 are aluminum which are slightly weaker than the iron. We're still talking about 800-1000hp for the teksid, and 1000+ for the romeo.

As far as the rotating assembly, the 99/01 Cobra will let loose around 450-500hp. They have forged cranks, but have sintered rods like the GT.

I can vouch that the PO of my blower blew his 01 Cobra motor at 500hp/540ft-lb. Engine chucked a rod and put a few windows in the block. Wasn't pretty.

[Jaa1456]

Thanks, im debating on picking up a romeo short block with 49k on it for 400 and another 100 for the crank. And how about the heads from those cars?

[Speedstang302]

Originally Posted by WickedSnake00 Blocks or shortblocks? The 99/01 are aluminum which are slightly weaker than the iron. We're still talking about 800-1000hp for the teksid, and 1000+ for the romeo. As far as the rotating assembly, the 99/01 Cobra will let loose around 450-500hp. They have forged cranks, but have sintered rods like the GT. I can vouch that the PO of my blower blew his 01 Cobra motor at 500hp/540ft-lb. Engine chucked a rod and put a few windows in the block. Wasn't pretty.

this is new to me...99/01 had aluminum block O..o never knew

[Jaa1456]

Originally Posted by Speedstang302 this is new to me...99/01 had aluminum block O..o never knew

is that a joke? Hope you are not serious.

[1989Gt.]

If you want an aluminum block get the teksid block ive seen people get 1000hp out of those and they are fine. Youll have to change your internals tho. If you want to reach above 450hp. Also if you get a 99 cobra block they are still teksid. 01 are made at the romeo plant. And the 03/04 blocks are great blocks as well but they are more money usually

[WickedSnake00]

Originally Posted by 1989Gt. If you want an aluminum block get the teksid block ive seen people get 1000hp out of those and they are fine. Youll have to change your internals tho. If you want to reach above 450hp. Also if you get a 99 cobra block they are still teksid. 01 are made at the romeo plant. And the 03/04 blocks are great blocks as well but they are more money usually

Teksid is 96-98 Cobra, and I believe the 99/01 Cobra are actually WAP (Windsor Aluminum Plant, Windsor Ontario, not Romeo Michigan). The WAP is only slightly weaker than the Teksid. The WAP was also used on the late model Explorer engines. Even though they're 2v's some guys swap to them to save weight.

Depending on your goals, you could buy an Explorer engine, put in forged rods and pistons, and be good up to about 600hp. If you want more than that, you can get the forged crank as well. That'd all be with 9:1+ CR and still 2v if you want to go that route.

And the Romeo iron blocks the 03/04's use are nothing special. They're the same heavy iron blocks that the GT's use.

[Jaa1456]

I found a good deal near me for a Block and the crank from a 99. 450 for the both and a money back guarentee if the shop finds something wrong with them.

[WickedSnake00]

Good deal. Aluminum block and forged crank is a good foundation.

[1989Gt.]

Originally Posted by WickedSnake00 Teksid is 96-98 Cobra, and I believe the 99/01 Cobra are actually WAP (Windsor Aluminum Plant, Windsor Ontario, not Romeo Michigan). The WAP is only slightly weaker than the Teksid. The WAP was also used on the late model Explorer engines. Even though they're 2v's some guys swap to them to save weight. Depending on your goals, you could buy an Explorer engine, put in forged rods and pistons, and be good up to about 600hp. If you want more than that, you can get the forged crank as well. That'd all be with 9:1+ CR and still 2v if you want to go that route. And the Romeo iron blocks the 03/04's use are nothing special. They're the same heavy iron blocks that the GT's use.

Yeah winsor blocks my bad but im sure that 99 cobra blocks are teksid blocks. i know the 01 are windsor tho. Thats what i meant i just put it down wrong.

[jimmyblaze22]

What's the highest compression you can go and run a blower, saying I had all forged internals? Which is what the Termi will give me. Oh, and at Livernois I can get an 03/04 Cobra shortblock with the standard internals(forged) for like $2700. Thats not bad to give me a brand new engine! And I say brand new engine cuz my heads are about to arrive at my doorstep as soon as Nick at MHS sends em to me. So, all I need is the shortblock. I want 11cc dish pistons so my compression is up there until I get my blower.

[jimmyblaze22]

Anyone have any input on my last post about compression with forged bottom end and p/p pi heads?? How about 10:5 ??? Cuz that's what I'm gonna be at with my non pi block and pi heads. And 24lb injectors sound like they're good to have with a p/p pi head swap with every other bolt on possible?