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With a history in the automotive manufacturing business that stretches back to the 1920s, Toyota had decades of experience when it released its 2T-C engines in the late 1970s. Made for racing cars and for speed, these powerful engines are often found refurbished in racing cars today.
General
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Toyota's 1979 2T-C engine featured four cylinders. It had a displacement of 96.9 cubic inches, a compression ratio of 9.0 to 1, and a bore and stroke of 3.35 inches by 2.76 inches. It also had a net power of 75 horsepower at 5,400 rpm and a torque of 85 ft.-lbs. at 2,800 rpm.
Valves
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Intake valves in the 2T-C featured a head diameter of 1.61 inches, a face and seat angle of 45 degrees, a seat width of .06 inches, a stem diameter of 0.31 inches and a stem clearance of .0010 to 0.0024 inches. Exhaust valves featured a head diameter of 1.42 inches, face and seat angles that are also 45 degrees, a seat width of 0.06 inches, a stem diameter of 0.31 inches and a stem clearance of 0.0012 to 0.0026 inches.
Crankshaft/Connecting Rods
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The 2T-C had main bearings with a 2.28-inch journal diameter, a clearance of 0.0009 to 0.0019 inches, a center thrust bearing and a 0.003 to 0.007-inch crankshaft end play. Connecting rod bearings had a journal diameter of 1.88 inches, a clearance of 0.0009 to 0.0019 inches and a side play of 0.006 to 0.010 inches.
Pins, Pistons, Rings and Valve Springs
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Featuring press fit rods and pistons, the 2T-C had a piston clearance of 0.002 to 0.003 inches, number one rings with an end gap of 0.006 to 0.011 inches and side clearance of 0.0008 to 0.0024 inches, and number two rings with 0.008 to 0.013 inches of end gap and a side gap of 0.0006 by 0.0022 inches. The valve springs had a free length of 1.657 inches and a closed pressure of 58.4 pounds at 1.484 inches.
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