BDHG940 Posted July 19, 2007 Report Share Posted July 19, 2007 car is a 99 cobra with a novi 2k. Looking into building a motor and trying to find out what all I would be getting myself into. I really have no idea on what the hp potential is and right now its all stock internals(440rwhp). If anyone can let me know some details if you have experience and hp, let me know. I havent done anything with the car in a long time and debating on what to do. I am looking to stay PUMP GAS, what can I expect Quote Link to comment Share on other sites More sharing options...
thorne Posted July 19, 2007 Report Share Posted July 19, 2007 Jump on corral There is allot of info there. Whats done to the car already to make 440rwhp? Quote Link to comment Share on other sites More sharing options...
Spidey2721 Posted July 19, 2007 Report Share Posted July 19, 2007 check these guys out... http://www.dssracing.com/modular%20engines.htm back when I was doing 4.6 stuff these guys had some pretty good motors. Course that was 2 or more years ago. Rob http://www.LaSotaRacing.com would be a great person to talk to if you don't know him thru here already. Quote Link to comment Share on other sites More sharing options...
BDHG940 Posted July 19, 2007 Author Report Share Posted July 19, 2007 Jump on corral There is allot of info there. Whats done to the car already to make 440rwhp? Novi 2k, ill put up a post over these as well Quote Link to comment Share on other sites More sharing options...
NTHER91 Posted July 20, 2007 Report Share Posted July 20, 2007 honestly the 4.6 has a weak point (rods) Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted July 20, 2007 Report Share Posted July 20, 2007 It depends on the 4.6 you're talking about. The 03-04 based 4.6 for the Cobra has the good rods, and the pistons just have too close of a piston to wall clearance. I may be selling my motor (most likely longblock, possibly just short) this winter. If you're looking for something soon, Modular Mustang Racing is going to be your best bet. Building a motor is going to cost you, and you'll need to decide what kind of setup you want. FI vs NA (personally I would do FI on a 4.6), etc... Quote Link to comment Share on other sites More sharing options...
Scotty2Hotty Posted July 20, 2007 Report Share Posted July 20, 2007 I'm partial to the Windsor block. Upwards of 408 cubic inches can be obtained from this beast. If you check out some NMRA cars, they're normally running the Windsor, but you also have the 331, 347ci crowd aswell. N/A a windsor is usually good for upwards of the 470 RWHP mark, and not to mention parts readily availible, cheaper, and not to mention it has push rods Quote Link to comment Share on other sites More sharing options...
99BlownYellowGT Posted July 20, 2007 Report Share Posted July 20, 2007 The question was i believe how much to build up a 4.6 and i will simply answer it with TOO MUCH Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted July 20, 2007 Report Share Posted July 20, 2007 Around 4000-6000 for a new shortblock, 10k+ for a longblock. Quote Link to comment Share on other sites More sharing options...
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