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Depends on the heads. The size is different for the exhaust valve and the intake valve, and different engines have different size valves.
The valves are mechanical devices in the engine heads that open and close. The intake valve opens to let the air/gas mixture into the combustion chamber,. Both valves close the combustion chamber during the compression stroke, and the exhaust valve opens to let the burnt gas out during the exhaust stroke.
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What is is the cc's and valve size for gm heads 10147898?
I have the same heads and from the info I found they 76cc heads with 1.72 intake valves
What is the difference between 194 and 202 chevy heads?
The only difference between the two Chevy heads is the size of valve they were designed to fit. Either size will work correctly on all valves, though.
What size valves are in a set of head with casting number 333882?
There 194 heads 1970 to 1980 heavy cast iron heads
What is cross flow head?
4 valve sohc/dohc heads and hemi heads are both cross flow heads. It is because the intake valve is across from the exhaust veruses inline as with regular 2 valve wedge heads.
Do heads have to be removed to replace valve guides and valve stem seals on a 1995 Mazda millenia?
yes heads need to be removed
Do all 350 heads have valve seals?
The Chevrolet 350 stock "O" ring valve seals attach to the valves not the heads but, yes the head assembly has valve seals.
Where are the valve covers located on a Ford?
On the top of the head/heads. The valve covers, cover the valve train.
Will 305 vortec heads fit on a 350?
Yes, but I don't know why you would want to use them on a 350. 305's are limited as far as valve size is concerned because their small bore causes clearance problems with the large valve heads... Larger valves will actually hit the block on a 305. Just about ANY 350 head is better than ANY 305 heads.
What part of the engine contians the valve train?
the heads
You have a pair of sbc heads?
need to no if the first valve is intake or exhaust The intake valve is always bigger than the exhaust valve.
Which heads bolts are blind on big block Chevy 396?
When you remove the valve cover, You can SEE ALL of them. None of them are blind. There are also a handful on the outside of the head. Some right below the valve cover and another set underneath the exhaust.
Which valve is the preferred valve to use as flow control valve at the pump discharge 8 inch size ball valve can be used for the same application?
I would use a butterfly valve to set the flow and a pitot tube to measure it. Nexus Valve makes a good one and it is price competetive as well.
