SC motor
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Joined: Sep 2000
Posts: 33
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From: IA,USA
Car: 2004 Mercury Marauder
Engine: 4.6L DOHC
Transmission: 4R75
Axle/Gears: 4.10 gears/8.8 rear
SC motor
OK, assuming you are going to build a motor to run with 12-15 pounds of boost, which of the following would you run? Would be topped off with a TPIS MiniRam II and AFR heads and looking to run 11's and still have a good street powerband.
1) 355
2) 383
3) 396
And what compression ratio would you run?
1) 355
2) 383
3) 396
And what compression ratio would you run?
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Joined: Jul 2001
Posts: 4,991
Likes: 1
From: Cheyenne, Wyoming
Car: 1992 B4C 1LE
Engine: Proaction 412, Accel singleplane
Transmission: built 700R4 w/custom converter
Axle/Gears: stock w/later 4th gen torsen pos
Im going 415 but I'm in the cu$tom pi$ton trap. 383's and larger usually need custom pistons (unless you go short rod) to obtain blower friendly compressions even with large cc combustion chamber heads. This is no problem as long as you can afford pricey pistons. But, if not don't lose heart because some of the fastest blown cars in the country are 355's with heavier trw turbo/blower pistons (tough little anvils). https://www.thirdgen.org/rides/index...ew&rideid=3980
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