1988 BMW 325i S50B30 Swap


1988 BMW 325i S50B30 Swap
Fresh in on consignment, courtesy of a fantastic local enthusiast is this professionally swapped and maintained 1988 BMW E30 325i sedan, with an E36 M3 S50B30. This was a daily driver, and is ready to continue its duty. With that being said, this is a drivers car, so cosmetics may not be showroom ready. However you can hop in this E30 and drive it anywhere, whether it be groceries or a day at the track. We have full confidence in this build, which does not come easily from us. So if you’re in the market for a dialed E30 that makes plenty of power and is ready to rip, look no further. The chassis on this build sits around 300k+ miles, but please keep in mind the mechanics reflect different, lower mileage.
Provided by the owner is this lengthy list of history/build specs. If you have any questions pertaining to this, please don’t hesitate to reach out.
Exterior: Overall this car is in solid shape, sporting original paint that has seen a handful of miles. There are some areas where the paint is burnt through causing discoloration, mainly on the hood near the windshield. Corrosion wise there is some rust in the battery tray area as usual with these e30’s, caused by a failing/leaking battery years back. The rest of the car is solid, paint shining nicely. We would call this one a 10 footer with confidence.
Zinnoberrot exterior with plastic bumpers
new 5-piece euro bumper trim
new OE front valance
Hella US ellipsoids
new Euro headlight grills
new 318is oil cooler "delete" lower grill
325is trunk lid + satin black spoiler
heated Zinnoberrot mirrors from an '88 325i cabrio
shadowline trim (painted)
Drivetrain: This car was owned by an individual who works in the automotive industry, specifically focusing on BMW’s, so it’s safe to say this car runs and drives beautifully. She fires right up with no hesitation, smoke or odd noises. The car pulls strong through every gear, cruising beautifully on the highway.
S50B30 US “from my former personal 8/95 M3 (eh06888), engine was installed in June, 2018; the donor M3 had 152,085 miles when dismantled. estimated 175k miles on engine currently”
Supersprint replica exhaust manifolds
OBD2 E36 center section w/ cats
UUC System U muffler
Turner Motorsport tune
Dinan big-bore throttle body
Dinan air filter
e30 m3 wiring harness covers
Race skids m/s50 skid plate
e30 325i radiator, expansion tank, 80c thermostat, 82c cooling fan switch, heater hose from thermostat to heater core + cylinder head to heater core (all new in June, 2018)
e36 upper/lower radiator hoses, water pump, drive belt (all new in June, 2018)
90a alternator (new Feb, 2024)
s52 timing chain tensioner (June, 2018)
e34 525i oil pan, pick-up and dipstick
e28 535i engine mounts (new in June, 2018)
Getrag 260 from e30 325i (miles unknown, does whine at higher speeds, but does not grind or pop out of gear)
e30 323i factory lightweight flywheel
Sachs "618" heavy duty pressure plate, clutch disc/TOB and pilot bearing
custom transmission brace with e21 320i transmission mounts
e30 325i shifting components with custom dual-shear selector rod, z3 1.9 shift lever (all above parts new June, 2020)
e30 325i driveshaft (new November, 2017)
3-clutch 3.73 limited-slip (rebuilt November, 2017) w/ M-coupe differential cover
Suspension:
e30 m3 front struts + rear trailing arms
H&R Sport springs and Bilstein dampers (older but very serviceable)
Textar rotors/pads (March, 2020)
GC heavy-duty sway bar front links, Ireland Engineering 22/19mm anti-roll bars, reinforced trailing arm mounts
e36 m3 steering rack, modified steering knuckle
e36 m3 low pressure hoses, reservoir w/ bracket (March, 2020)
16x8 BBS RZ 469 wheels with new 205/45/16 tires
AKG 95a "black race" subframe and trailing arm bushings (November, 2017)
Treehouse Racing front "eyeball arm" control arm bushings
front wheel bearings, front control arms + tie rods (March, 2020)
rear wheel hubs and bearings (November, 2017)
e30 325i fuel tank and fuel pump
all new 8mm fuel hoses and fuel filler hose (June, 2020)
Interior:
Recaro SRD Confetti seats with custom brackets on stock e30 sliders
two door center console (for a cleaner look)
e30 m3 parking brake boot + leather handle
Weathertech all-weather floor mats
Vehicle is sold with a clean Oregon title.