Sentences with phrase «needle roller rocker»
A 150 PS (110 kW) supercharged version of the smaller engine was added to the line - up in February 1987, [7][9] using the world's first needle roller rocker arm assembly.
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Part Number: 19260835 Engine Type: LS - Series Small - Block V - 8 Displacement (cu in): 454 cu in (7.4 L) Bore x Stroke (in): 4.185 x 4.125 (106.3 x 104.8 mm) Block (P / N 19244057): LSX cast iron with 6 - bolt cylinder head attachment Crankshaft (P / N 19244018): 4340 forged steel Connecting Rods (P / N 19166964): 4340 forged steel Pistons: (P / N 19166958): 4032 forged aluminum Camshaft Type (P / N 19166975): Mechanical roller Camshaft Lift (in):.738 intake /.738 exhaust Camshaft Duration (@.050 in): 250 ° intake / 270 ° exhaust Cylinder Heads (P / N 19166979): Drag race cylinder heads 6 - bolt LSX aluminum Valve size (in): 2.250» x 6.370» intake 1.625» x 6.400» exhaust Compression Ratio: 13.1:1 Rocker Arms (P / N 19201808): Shaft mounted with needle bearing fulcrum and tip Rocker Arm Ratio: 1.9:1 Recommended Fuel: Race fuel (110 octane minimum) Maximum rpm: 7,100 Reluctor Wheel: 58X Balanced: Internal
• Two - lobe overhead cam and a pair of needle - roller rocker arms reduce friction by 50 percent for increased fuel efficiency and torque.
Low - friction technologies such as an offset cylinder and a roller rocker arm are supplemented by such techniques as intelligent control to lessen friction during power generation and the first adoption of a shell - type needle bearing for the rocker arm shaft.
Titanium intake valves operated by roller rocker arms with needle bearings and fixed fulcrums contribute to a low - inertia valve train.
Valve train Lightweight titanium intake valves are operated by roller rocker arms with integrated low rolling resistance needle bearings that significantly reduce friction between the cam and the sliding parts.