Crankshaft main bearing caps are also designed with a «four - bolt» design that is desired when building an engine to its maximum performance efficiency.
For instance, the lower brake mean effective pressure at full load in this engine allowed
the crankshaft main bearing diameter to be reduced from 52 to 48 mm, while the balance shaft chain is narrower.
That's a mistake, one made all too often by powerful CEOs whose business acumen may be admirable but doesn't remotely qualify them to assess, amend, or approve designers» work any more than it qualifies them to tell the powertrain group that they want
the crankshaft main bearing diameters increased because it «feels better» to them.
Not exact matches
The forged - steel
crankshaft is well supported by the deep - skirt block, 6 - bolt
main -
bearing caps, and a deep - sump oil pan.
The
bearing covers for the
main crankshaft bearings are of grey cast iron, and are bolted to the crankcase, as well as on the sides, for high rigidity.
The forged
crankshaft of high - grade 38MnS6BY steel alloy rotates in five
main bearings, has eight counterweights and has been optimised with respect to torsional rigidity, inertia, low rotating masses and a long operating life.
Engine block and cylinder heads and all internally lubricated parts including pistons, piston rings, pins and cylinder sleeves;
crankshaft, pulley,
main bearings, caps and bolts; connecting rods, rod
bearings, caps and bolts; camshaft (s), camshaft
bearings, buttons and plugs; timing gears and timing chain or belt; rocker arms, rocker arm pivots, shafts and bushings; intake and exhaust valves, springs, guides, adjusters, retainers and seats; pushrods and lifters; intake manifold; exhaust manifolds; balance shaft; water pump; fuel pump; thermostat; oil pump, cover, gears, pressure relief valve and screen; rotor housing, rotors, shims and silent shaft; all internal fasteners, nuts and bolts; turbocharger / supercharger assembly including boost valve and wastegate; seals and gaskets.
All internally lubricated parts, including: pistons, pins and rings, connecting rods and
bearings,
crankshaft and
main bearings, camshaft, followers and cam
bearings, push rods, valves, springs, guides, seats and lifters, rocker arms, shafts and bushings... view more details.
Engine Type: Chevy Small - Block V - 8 Displacement (cu in): 350
Bore x Stroke (in): 4.000 x 3.480 Block (P / N 10105123): Cast - iron with 4 - bolt
main caps
Crankshaft (P / N 14088526): Nodular iron Connecting Rods (P / N 10108688): Powdered metal steel Pistons (P / N 12514101): Cast - aluminum Camshaft Type (P / N 24502476): Hydraulic flat tappet Camshaft Lift (in):.435 intake /.460 exhaust Camshaft Duration (@.050 in): 212 ° intake / 222 ° exhaust Cylinder Heads (P / N 12558060): Vortec iron; 64cc chambers Valve Size (in): 1.940 intake / 1.500 exhaust Compression Ratio: 9.1 nominal Rocker Arms (P / N 10089648): Stamped steel Rocker Arm Ratio: 1.5:1 Water Pump (P / N 88894341): Cast iron, long - style Flexplate (P / N 14088765): 12.750» Recommended Fuel: 92 octane Ignition Timing: Base 10 ° BTDC, 32 ° Total Maximum Recommended rpm: 5,500 Balanced: External
The accumulated length of
main bearing journals gives a relatively torsionally flexible
crankshaft.
Cylinder Block and
Crankshaft The Civic Type R's 2.0 - liter inline 4 - cylinder engine has a lightweight die - cast aluminum block with reinforced
main bearing caps to minimize weight.
It was designed from scratch with five
main crankshaft bearings and four valves per cylinder and can be either SOHC or DOHC and one timing belt.
The structural benefit derived from the combination of a forged steel
crankshaft, optimized
main bearing journal diameters, and iron
main bearing cap inserts results in minimized noise and vibration at mid and high rpm.
The 2.0 - liter four - cylinder employs such NVH - reducing features as a chain - driven balancer unit in the oil pan; a highly rigid, ferrous - carbon inserts in the
main bearing caps for added rigidity; a one - piece
crankshaft carrier; a silent chain cam drive; and a stiff, cast - aluminum oil pan.
One - piece
crankshaft carrier with ferrous
main bearing caps for improved rigidity and durability
The
crankshaft is fitted with four bolts on the
main bearing supports.
For any engine problems that might occur in your certified pre-owned vehicle, we cover issues such as engine block and cylinder heads and all internally lubricated parts including pistons, piston rings, pins and cylinder sleeves;
crankshaft, pulley,
main bearings, cap and bolts; connecting rods, rod
bearings, caps and bolts; camshaft (s), camshaft
bearings, buttons and plugs; timing gears, chain or belt, and tensioner; rocker arms, rocker arm pivots, shafts and bushings; intake and exhaust valves, springs, guides adjusters, retainers and seats; pushrods and lifters; intake manifold; exhaust manifolds; balance shaft; water pump; fuel pump; thermostat; oil pump, cover, gears, pressure relief valve and screen; rotor housing, rotors, shims and silent shaft; all internal fasteners, nuts and bolts; turbocharge / supercharger assembly including boost valve, boost pressure control, wastegate, recirculation and blow off valve; seals and gaskets.
The cast iron
bearing bridges reduce the thermal expansion of the crankcase and thus keep the play at the
main bearings of the
crankshaft within tight limits.
The lower crankcase assembly supported the
crankshaft without conventional
main bearing caps.
First use of fracture split
main -
bearing caps, which create a superior fit between the cap and engine block for reduced
crankshaft friction to help improve efficiency.
Cylinder heads and cam covers
Crankshaft: crank pin diameter, connecting rod big - end
bearing size and crank counter-weight size are all reduced, to reduce reciprocating weight Crank
main bearings and caps High - strength forged connecting rods Pistons and piston rings Titanium inlet and exhaust valves Intake manifold and throttle body Redesigned Variable Valve Timing - intelligent Electric motor (VVT - iE) Revised Lexus D - 4S dual injection system Four - into - one exhaust headers and heat insulators Oil pan and baffle plate Alternator clutch system Engine and transmission oil coolers Spark plugs
Six - bolt
main bearing caps, a fully counterweighted forged steel
crankshaft and cast exhaust manifolds are designed for heavy - duty operation.
Cylinder Block and
Crankshaft The Civic Hatchback's 1.5 - liter inline four has a lightweight die - cast aluminum block with individual reinforced
main bearing caps to minimize weight.
Large, 70 mm - diameter
main bearings were also used to minimize
crankshaft movements.
For a solid foundation, the engine's lower end uses six - bolt
main bearing caps that clamp and lock in the forged steel
crankshaft to the deep - skirt block.
It starts with a Dart Iron Eagle 302 Short block ($ 8,500 alone), this was built with Dart Aluminum heads, Ford Racing
crankshaft, Clevite 77 rods, Clevite
main bearings, I - beam connecting rods w / ARP bolts, heavy duty forged flat top pistons, Cloyes three - piece true double roller timing set, custom performance camshaft, chrome moly pushrods, March serpentine system, MSD ignition, and topped with an Edelbrock four - barrel carburetor.
Other improvements include inverted - tooth chain driving the camshaft, forged steel
crankshaft, cast aluminum bedplate with
main bearing cap inserts made of iron, high - pressure fuel rail with rubber - isolated assembly, acoustically shielded plastic cover for the intake manifold, and structurally enhanced aluminum camshaft cover and front cover.
A forged steel
crankshaft is fitted with select fit
main bearings and is supported across five
main journals.
A forged steel
crankshaft and forged connecting rods, coupled with a cast - iron structural
main bearing beam, contribute to an extremely rigid and quiet lower structure.
All internal engine parts including pistons, piston rings, piston pins,
crankshaft and
main bearings, connecting rods and
bearings, camshaft and
bearings, timing chain / belt, timing gears, intake and exhaust valves, valve springs, valve guides, oil pump, push rods, rocker arms, rocker arm shafts, hydraulic and solid lifters, intake manifold, distributor shaft and housing, harmonic balancer, timing gear cover, and vacuum pump.
The following internally lubricated parts are covered: Pistons, Piston rings and Wrist pins, Piston connecting rods and
bearings;
Crankshaft and
main rod
bearings; push rods; Valves; Springs; Replaceable guide seats; Lifters; Rocker arms, shafts and bushings; Timing gear and chain; Timing chain tensioners and retainers; Eccentric shaft and
bearing; and Oil pump.