they alow the motor to take in more air via intake and evacuate more air via exhaust. thus creating more power. in short the more air and fuel you can move through a motor EFFICIENTLY the more power you will build.
yes it will fit, 262-400ci chevy smallblock manifolds are interchangeable.
under the intake
A complete engine with flywheel, headers, intake, and carb will weigh around 520 pounds.
yes it will fit, any smallblock Chevy intake from 86-55 are interchangeable, the 86 and newer have bolts that go staight down instead of on a angle
Mounted in the heads.
if you have EFI engine, replace your stock intake, headers, exhaust. installing racing filters improves air intake which can add power to your engine. replacing your stock headers and exhaust pipes with custom headers and mufflers can eliminate back pressure. doing this upgrade can give you additional 10 - 20 HP.
right front, left rear of intake manifold. most engines are equipped with correct stamped steel brackets for this purpose.
Depends on a few things such as if you are using aluminum heads & intake and headers, or the factory iron parts. If it is all factory, with the exhaust manifolds on it about 620-640 lbs. Substituting aluminum heads, intake, and headers saves about 75-80lbs.
Yes they do at the intake manifold.
There are two knock sensors on your engine, and they are underneath the intake manifold. You will have to remove the intake to get to the sensors.
There is 2 of them on that engine and there underneith the intake manifold. You can't see them are even get to them until the intake is removed.
What was the situation with DexCool and the Chevrolet 3800 series II engine and how do i get the replacement intake manifold from Auto-zone and what is the part #