new 03-04 cobra shortblock from FRPP

[ChicagoMike]

Discuss

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[Kegger]

I saw that thing up close and personal. It was on Ken Gushi's Mustang (Formula Drift Series). He had a Whipple on top.....he didn't know what psi his tech's are running, he only knows that it laid down over 600 rwhp. He did say they went with this aluminum shortblock because it had a tremendous amount of weight savings associated with it. How can an aluminum block hold together for a long time, on a boosted motor?

 

[ShelbyGuy]

what makes you think aluminum is somehow weaker? the right alloy with a heat treat is stronger than ductile iron for sure.

 

[Kegger]

I'm by no means an expert in this subject at all. I just have common sense logic that says "iron is stronger than aluminum". If you say there is a way to make aluminum stronger than iron.....why don't more manufacturers do this? Every high boosted motor I know of has an iron block.

 

[hj16]

Every high boosted motor I know of has an iron block.

Try telling that to John Mihovetz's 2000hp Aluminum 4.6L

 

[hj16]

And on a side note, fuck them. Aluminum block is great and all, but it still has the same shitty pistons.

 

[ShelbyGuy]

aluminum is cheaper in short runs and small batches. iron is cheaper in large production runs. it takes a huuuuuuuuge amount of electricity to turn bauxite into aluminum.

I'm by no means an expert in this subject at all. I just have common sense logic that says "iron is stronger than aluminum". If you say there is a way to make aluminum stronger than iron.....why don't more manufacturers do this? Every high boosted motor I know of has an iron block.

 

[cyac5l8trfcar]

Try telling that to Jhon Mihovetz's 2000hp Aluminum 4.6L

that's a WAP block too. just like the fr500. huh, i wonder why it's the "shitty" one

 

[ShelbyGuy]

internet warriors that post a lot but never chowed their fingertips putting on a compression ring.

that's a WAP block too. just like the fr500. huh, i wonder why it's the "shitty" one

 

[cyac5l8trfcar]

internet warriors that post a lot but never chowed their fingertips putting on a compression ring.

are you talking about me or the people that destroy them by not knowing how to assemble an engine? mine's just fine.

 

[FR 500 HAND BUILT]

haha ok look at it this way-- ford for a 03 cobra motor from the blower to pan wants almost 10 grand. How much more do u think they want for the aluminator-- just think a brand new aluminum block is almost 2,000 dollars. So then they will mark it up another 1,000 or so. Then ur looking at a motor that could cost u as much as the 5.0 cammer motor. Atleast the cammer motor has a 3500 dollar intake and is pretty much bullit proofed! Have fun bending over for this motor that will still have the shitty pistons and 2 tight of clearances for the piston gap when they heat up.

 

[rocket5979]

I'm by no means an expert in this subject at all. I just have common sense logic that says "iron is stronger than aluminum". If you say there is a way to make aluminum stronger than iron.....why don't more manufacturers do this? Every high boosted motor I know of has an iron block.

Uuum, it is called "sleeving". Besides, barely EVER does a block itself fail. It is 99% of the time that a piece of the rotating assembly inside the block that fails and then sometimes punches a hole through the block. Unless your running 1,000+ you don't even need to take block metallurgy into consideration. Even at 1,000 there are still bigger fish to try than the block itself.

Don't worry about the block, worry about the pistons, rods, oil pump, and bearings instead.

 

[rocket5979]

Recipe for badass aluminum shortblock... Buy used Explorer or Aviator WAP aluminum shortblock. Gut it....Machine and bore it to 300+ci...Resleeve it....Drop in forged Cobra crank....Drop in Diamond forged pistons and Oliver billet rods.....billet oil pump gears (correctly cut)....blahblahblah.....Holds a lot more power than that thing, makes more power too. One HELL of a lot cheaper also.


I am not knocking that engine, but for anyone besides the mechanically inept, it will not be too great a deal.

All else fails, just Call Scott at VT and have them build an alum monster still for less than that will probably cost...

 

[ShelbyGuy]

ford racing crate engines have a 12,000 mile warranty.

 

[Since 1964]

I doubt if VT is any cheaper.

 

[Since 1964]

I doubt if VT is any cheaper. I could be wrong though. I really DON'T know what they charge for the same thing.

 

[rocket5979]

I doubt if VT is any cheaper.

For abouut $7,500 you can have a fully built Cobra longblock with billet internals ported heads and Crower cams. It will withstand one heck of a lot more than the stocker 03/04 engine will handle and be setup to make more power too. I believe that engine pictured is going for more than that, is it not?

Edit: Shoot, I forgot that was just the shortblock there. Well in that case it will be around $4,700 total to get an aluminum block and send it off to them to be rebuilt and machined billet internals and the works. It would cost more if you wanted to do a stroker or big bore of course.

 

[Since 1964]

I have no idea what any of this stuff costs and I do NOT want to find out. I can't hook 500 at the wheels without slicks and VHT. What would I do with 700HP but get sideways at 80 and kill myself anyway.

I would like a 600RWHP car but I ain't in no hurry.

 

[FR 500 HAND BUILT]

my fully built shortblock is going to run me

500 dollars for the block bore and machine work to the crank
2200 oliver rods, cp pistons, rod bearings, main bearings-
400 oil pan
209 built oil pump and pickup
90 windage tray
30 oil pan gasket
179 for arp main studs.
30 rear main seal.


so all in all i am assembling it with some help from steve(redman) that will save me some money!! :headbang:

3638 is my built short block- complete-