danzcool

I know nothing about making big power... but I'd say send off your aluminum block for a 3.7" bore with darton sleeves, put in some good pistons,rods, and a mild stroker crank, and then send your heads out to be ported. If you don't go with a stroke, you're looking at 5.0L with the stock crank, if you do stroke you could be looking at up to 5.3L easy. But what do I know.

dlazrael

Dripping with Sarcasm.... but who would do that work, and at what cost? I'm not sure where to go on piecing it together. But i am definately open to suggestions

danzcool

You can do a one-stop shop or piece it together, Darton does machining and sleeve installation... I suspect you could also get Brenspeed, Livernois, and JPC to package & do it for you and re-assemble the short block (I think you'd only get the block done with Darton). Then there are all the engine builders that advertise in the mustang magazines, MMR and CHP come to mind.

I think the sleeves/machining on my block was $2000, then you need rods/rings and pistons... stuff adds up quick after that.

For holding up to 700HP, probably either block from Brenspeed would be fine... but actually getting there with the whipple 2.3, I'd say go for the head work (I think Livernois and MMR allow you to send in you heads for porting, and then there's the ford racing heads you can just outright buy), and the bigger displacement, then make sure the exhaust is as free flowing as possible. That will allow you to make more power at lower boost, which means lower IAT in the manifold, which keeps the PCM from pulling timing.

Dino Dino Bambino

Sleeving the stock aluminum block is an expensive and time-consuming process so I wouldn't recommend it. It would be far easier and cheaper just to have the cylinders honed +0.002" and install a stroker kit with a 3.800" stroke crank that'll increase the displacement to 302ci (5.0L). The alternative is to buy a B302 short block and either keep the stock short block as a spare or sell it.
If 302ci still doesn't float your boat, get the B326 (5.3L) and throw anything you like at it including the kitchen sink. :lol: That block will handle over 1000hp without even batting an eyelid.

jpplaw

For 700 rwhp, you are talking around 825-875 flywheel hp ....I would go B326 for the iron block. I have read that at ultra high hp levels the aluminum block tends to distort at the bottom of the cylinder bores, and that's the reason Ford started making the big bore iron modular block

CMcNam

Correct me if I'm wrong but I don't believe the B302 or the FRPP A46X are offered anymore. I don't see them listed on Brenspeed's site anyways.

I hope I'm wrong, I really want one.

jpplaw

They do sell the B302 kit (crank, rods and pistons) and you either have to have your own block, have the machine work done and get it assembled, or they can do all of that for you using your block. The B302 internals (except for pistons and rings) are the same stuff used in the B326. They just don't have B302 short blocks stocked. Sometimes they can furnish a complete built short block outright depending on if they have a good stock block for a core. When I had them do my B326, I sold my stock long block to Brent. Would be cool to know who is running my old block.

danzcool

Yeah, boring and sleeving the aluminum block runs about 2k and takes a few weeks depending on how backlogged the machine shop is. For the power level he's talking about, he might as well go with the iron boss block, 2007 to 2010 GT500's used bigger iron blocks that weighed more than the 4.6 aluminum blocks, so realistically the weight isn't an issue that can't be dealt with.

dlazrael

What's a realistic power outlook for bored, honed 302 stroker, coupled with a 10-rib dedicated 13-14psi on the w140ax; into mac LT headers/prochamber ?

Simon1

Just looking at the OPs original post.

Please look around at some different clutches. The SPEC Stage 2 has been notorious in the past for being a gigantic piece of crap. Just search around a bit and decide for yourself.