PRO250

welcome stumpy no brown storys mate youll be safe

^^^^^^theres somone that knows what there talking about its not the exhaust its the pipes that go into them. if you have good pipes it would work even if there was no exhaust whats your name on the other forum mate? if your from there im having a hard time remembering whos who now

so a 4 inch + exhaust on a what was one of fords most basic engines that ran good numbers but nothing realy cause my old $500 engine in my corty ran 14.2 in a 2 gear blaze of wheel spin. I must be doing it worng my ute runs a twin 3inch system and would rip a old gt to shreads but to think it felt all choked up with a small system on it and still makes big real good torque down low so good it runs a 3.5 gears but it should run 3.9 4.11s im making a new 3inch system for a car soon i should do a back to back test i bet it will make the same TQs if not more then it had

put your XF or XH next to a stock v6 commondore and watch what happens, you will get blown and by a car thats 2 ton not a 1400kg ute they dont rev around town either torque moves a car and a new VE will kick a XH any time so there making the tqs to match there revs you would be the first to say 5litres dont have any torque to my Vn ss many moons ago would rape the tyres easy and you did not even have to rev it. they make much better TQs then a injected 5litre falcon but from what i can gather your falcons just pull there gearing much better then the holdens do there longer geared and althow it would not be much im sure you could feel it if your in the worng gear

thats also rubbish have you got a good 250? not trying to be a arse but thats just worng daves XF had a 3inch system on a next to stock engine and it still went good not loss of TQs even in the lower revs the bigger the engine the bigger the system you want a spot on size for a stock engine is 2 1/2 inch that a stock engine nothign done at all look at it like this the new crapodores run twin 2 1/2 inch systems on there stock v6s why do you think that is?

your kidding right? im driving my mates ute around at the moment i reved that to 5500 5 times today its a stock bottomend with a cam and carby LOL 4250 id rev a 500.000km stocker that hard hoping to kill it but i bet it would not die

people forget how much 250hp is hey, its heaps more then a injected 5litre commondore that 214 214 camed combo i showed ive made 170rwhp out of and was a stock and i mean stock head not even valve springs but thats what killed it my mate was tyre frying it in 3rd gear and it was valve bouncing before i said dont do that it will,,,,,,,,,,,, it droped a valve on the upside it cost $500 to build it and i just built a better one Id to that to. numbers mean shit i bet i have at least 2 160rwhp crossys that would rape the arse off a 200hp engine it not how much power it has its how it makes it

crow 214 214 stock head no rollers stock dissy coil extractors will work with your 500 but will feel stronger with a 4 barrel this will work with a stock stall auto and stock gears and will pull good and all sorted out nice will keep/beat you mates crapodore easy fit 3.45s and he will have no chance and will not fall to bits cause its a small engine

I have no idea how you want 250 flywheel HP and dont even want to fit the real basic gear. rollers will make your valve train last a heap longer as the crow 650 is getting some decent lift for stock rockers. basic head work is easy HP, might as well do it crap go buy a die grinder and do it yourself (just port the inlet side nice rounded work and just a zip in the exhaust port and then send it off for reco with a 22cc pistons 0.030 deck hight 0.030 head gasket on a 3.68 bore and a 3.91 stroke that engine will have 8.97 to 1 comp and with 8cc pistons it will have 10.53 to 1 (i did this on a comp thing on the net so ball park) why build to 5000rpm is the cam goes past 5000? and what does roller rockers go to do with its compression? and good ignition is also free HP but if you plan to use stock stuff just fit a MSD blaster coil and i spoze that will do 250hp is 1 hp per cubic inch and althow people will say a stock engine can make that ( and im one of them) its not always easy to make it last and fit a 4 barrel to it 2 barrels are for 4cylinders LOL

the glovers run a dry sump in there TE ill find pics tomorrow

yep looking sweet i have a 86da block if you cant find one in WA