87 conquest 5.9 magnum s475

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turboking15

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Figured id post up a build thread of my conquest as its nearing completion. A little info on the car.

1987 chrysler conquest
-stock bottom end 5.9 magnum with new rings, bearings, and arp rod bolts
-heads are stock magnum heads that have been opened up for 2.02 1.60 8mm chevy valves. I will be porting them along with some other "experimental modifications" that i will share details and pictures of later once im done with them and feel like they might actually work, lol.
-cam will be a regrind from oregon camshaft, specs are: 234/238 @.050 .600"/.602" w/ 1.6rr 114lsa +4 degrees advance
-904 trans extra clutch in the direct, billet servo, tranzact lba rev manual vb, kevlar bands, ati reverse wound direct return spring, 4.2 lever, aside from that stock rebuild.
-probably going with a budget ptc 9.5" converter, havent made it that far yet.
-s475 96mm turbine wheel 1.32 t6 housing, 5" exhaust dumped out fender, twin 38mm vband china wastegates
-hotside is modified block huggers with 2.5" piping and v bands, to a divided t6 flange with support bracket.
-fuel system is a pair of inline 225 walbros with a mallory 4307 reg, 750dp that i have converted to blow through, added billet metering blocks, xp bowls, hp main body, etc. also has a progressive snow performance meth kit. car will be run on 93 and w/m
-timing will be controlled through a daytona sensors cd-1 ign box, locked distributo and msd crank trigger.
-front suspension is modified factory spindles to take mustang coilovers on 10 way strange struts, with crown vic 12.5" rotors and camaro 2 piston pbr calipers. along with that i built custom control arms with a second pickup point to eliminate the factory strut rod. also has been swapped to a manual rack and pinion.
-rear suspension is a 31 spline 8.8 from an explorer, that has been narrowed to take 2 short side axles. 3.31 gears, spool, girdle cover, welded tubes, 9" big bearing conversion. I also took a left and right caliper bracket for each side, cut them in half, and welded them back together to give twin rear calipers for each side. all this is set up on 31" ladder bars with double adjustable strange coilovers. plan to add ARB down the road.
-car has a 10 point cage that also connects to some additional bars underneath that tie into the ladder bar cross member, kirkey seat and aftermarket gauges, other than that its stock interior with power windows and moon roof!

im sure theres more im forgetting but thats at least a start. hope you enjoy following along from this point to completion. It may not work but at least itll be fun!!! lol

If you have any questions, comments, or concerns lets hear em!
 
Heres an engine bay pic from mockup, im heading in now to dump all the photos in here.

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Awesome build! Following this thread.

How much does the car weigh? It must be super lite. And what are your HP expectations with that stock 5.9 and that massive S475? Thanks for sharing and keep the updates coming.
 
Awesome build! Following this thread.

How much does the car weigh? It must be super lite. And what are your HP expectations with that stock 5.9 and that massive S475? Thanks for sharing and keep the updates coming.

Not sure on weight yet, would love for it to be under 3k. As far as horsepower goes im just going to keep leaning on it until it gives but i would like to get north of 600. I know you and a few others have done it or gotten close.
 
Just luv it, maybe can do that to mine. I am looking for parts. If u have any PM me. Many thanks ,C

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What S475 do you have? Is it a BW or one of the knock offs? I was pricing the legit S475s from BW and they are surprisingly cheap, like $500ish.
 
Made a little progress the last few days. Fixed the flange on my m1 single plane to get rid of the spread bore pattern, most say its supposed to improve the performance of the manifold immensely. I have to get more sanding drums to finish porting it but this is roughed in with a single cut burr.

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Yours reminds me of mine, looked just like this one. Fast as heck, bought brand new turbo powered.

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Picked up a speed controller for my die grinder so i was able to continue the porting of the intake. Heres the progress on that thus far.

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WOW.....I don't understand how some of you guys cram all that stuff into that little car..........
 
Amazing work on the intake. What purpose do the two small holes on each runner serve?
 
Good call on fixing the carb flange on that intake. I didn't fix mine and I think it hurt power. Never really got the power I was hoping for out of my magnum and procharger before the head gasket let go. Also my cam wasn't ground for boost so that probably made a big difference as well. Cool project! Can't wait to see what it does.
 
A little update, had some parts show up, namely the daytona sensors cd-1 ignition kit. Super impressed with the quality of the unit, hopefully get to see how well it works come summer. Also picked up a set of holley xp bowls and a billet baseplate to add to my home built blowthrough 750.

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Started working on plumbing the dual rear calipers. Got everything mocked up, now just need to sand blast and paint some brackets and shell be ready to go.

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