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Originally Posted by DEI37
If you were to build up a realistic sleeper, what would you do? I'm not talking about buying the car, but building one up, that one wouldn't assume to be quick. I.E....buying a GNX and/or building up a GN/GNX.
Here's my thoughts, hopefully to turn in to a realistic project:
1. Start with a 1997 Olds Cutlass Supreme sedan
2. Remove crappy 3100 V6 and 4T60-E transmission
3. Remove front brake hardware
4. Remove all four wheels and tires
5. Obtain either a L67 (Supercharged GM 3800 V6) equipped donor car, or entire powerplant stuff, including engine, trans, axles, wiring...stuff like that
6. Rebuild the L67 motor with a better valvetrain, P&P heads, performance cam, computer, headers, smaller pulley, CAI, full exhaust
7. Build up the 4T65-E HD transmission to take more torque
8. Install cross drilled front rotors, and possibly four piston front calipers, use race pads
9. Install slotted rear rotors, and replace the crappy GM rear calipers with something else, use race pads
10. Install Mille Miglia HT-3 18x8 rims in Carbon Grey, along with 225/40-R18 Bridgestone Potenza S-O3 Pole Position tires
11. Install various but necessary engine monitoring guages to keep things in check.
12. Keep up with Corvettes on the dragstrip!
This should be a $6000 or so project, yielding me a new motor, transmission, and other go fast goodies. The only outward cues will be the 18" wheels, and the upgraded brake hardware poking through.
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There were no 97 cutlass supreme 4 doors that used the "crappy 3100" V6 engine, no 4t60-e transaxle as all 97 cutlass were still rear wheel drive. None came with rear disk brakes and although it is possible to convert to disk brakes that is not going to make the 87 sedan a front driver. If you started with a 90 model you could do these mods and be on your way. I have an 88 base supreme 2 door that I sold new in 88 and bought back from the owner and it is about as base as the got that year. It came stock with a 2.8, auto overdrive, "am" radio, crank windows, pie plate wheel covers on 14" wheels, column shift, P-steering, P-brakes and no air conditioner, etc. Now this is going to be a sleeper with a built-up L67, 4t65e-hd, quick ratio steering, later 11.25" front rotors, replacement rear disks and calipers, upgrade pads and struts, HD radiator, headers and exhaust from borla with intake from K and N cone infront of the rad, 16" stock "International" wheels and tires. In that way it will appear "stock" until the performance is shown by the sound of the pipes as it accelerates away from the unsuspecting "victim". In 1988 I was selling these cars and the car in question was one of the first ones that we got in at the dealership that 1st year of the new front-drivers. In my case the on the road cost shoud not exceed $4500. Hope this bit of info helps you in your quest to build a "sleeper cutlass supreme". By the way my car has only 7500 miles on it and is mostly still original-as-delivered.