Originally Posted by moparmuscle
I'm looking for another Magnum to go with my 07 R/T.
I have some options and need to know if there are swap parts available and would like some opinions on which way to go.
I have a Keith Black aluminum 540 short block (same as a 440) and will need heads and intake to complete it. Are there mounts, oil pan and headers available to put it in a Magnum? Is it possible to adapt it to the 5 speed or would I need to use a 727?
Or should I just sell the 540 and build a Hemi for it?
I want it to be a nasty street machine.
I applaud your 'go big or go home" lol, however I have to ask; did you want the car to still function semi normally? Here's why:
1. Absolutely NOTHING in the way of bolt in or on ANYTHING to put an old RB into a modern LX chassis. That means custom EVERYTHING.
2. Even the first gen LX's are pain in the ass rolling computer networks. Half the car won't function if it doesn't get the inputs it requires.
3. A KB 540 would blow a stock NAG1 apart. Hell it'll blow a stock 727 apart. A trans would need to be built regardless.
4. Honestly for what you could sell the 540 for, you could get a good head start (probably more) on a forged 6.1 based (iron or aluminum) 426 stroker built for boost.
An iron block 426 stroker with P&P Apache (392) heads, a stout but not too wild hydraulic roller cam and a 4bbl will make over 700hp N/A:
Add enough blower to that mix and you're tickling 1000hp or more. Then comes all the usual other stuff; stiffen the chassis, need bigger brakes, need built trans, need built rear, etc etc.