Short stroke crank was installed
into its cylinder block, and the diameter of the cylinders was diminished to 84 mm.
It is the same as QR20DE, but new crankshaft with piston stroke 100 mm was installed
into cylinder block.
Not exact matches
Better still, a blower and intercooler could be slotted
into the vee between the
cylinder banks at the front of the
block, meaning that the engine would be only an inch taller than the naturally aspirated LTI in the C7 Stingray.
The
cylinder block is split
into two halves.
Cylinders are cast
into an engine
block formed of cast iron or aluminum and then bored and drilled to the final bore diameter
Secure sealing between the
cylinder heads and the
block is a critical component of making reliable horsepower, so Chevrolet Performance puts the same engineering excellence and manufacturing precision
into their gaskets, head bolts, and
cylinder head studs as the
blocks and heads they secure.
It was built on the basis of FB20
cylinder block, modified
into square bore / stroke ratio.
New
cylinder liners that were now pressed
into the aluminium
block instead of the original cast - in variants allow a thinner liner, which in turn allows a larger capacity of 4.7 L.
The two direct - injection V8s share 90 percent of their parts, including
block, heads and two turbos with twin - scroll impellers wedged
into the V — meaning one air pump for every two
cylinders.
To that end, a
cylinder block rapid warm - up system suppresses the flow of coolant
into the
block when the engine is cold, and a piston cooling oil jet control system cuts the supply of oil to the pistons to improve warm - up speeds.
The Nicom (nickel and silicon) coating, electroplated
into the
cylinder walls by U.S. Chrome, creates a structurally stronger engine
block.
The
cylinder liners are made of high - silicon aluminum and are cast directly
into the aluminum
block.
Its aluminum
cylinder block is incased
into a magnesium shell.
Dual in -
block balance shafts were integral to the design, the power - steering pump was mounted directly to the
cylinder head and driven by the intake camshaft, the water - pump housing was cast
into the
block, and the A / C compressor and alternator were mounted directly on the
block without brackets.
A look at a four -
cylinder on an engine stand showed the lack of an exhaust manifold, with runners cast
into the
block routing gasses directly to the turbo.
The increase in
cylinder bore is facilitated by a move to
cylinder liners that are pressed
into the pre-machined aluminium alloy
block, allowing a thinner liner than was possible with the cast - in design of the 4.3 litre engine.