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yes heads need to be removed
take out the cylinder head bolts
its just above the transmission in between the cylinder heads
You can adjust the camshaft on your 1997 Mazda 626 with the camshaft adjustment bolts. You can access the camshaft adjustment bolts by removing the cylinder heads.
good luck its not very easy you will have to pull the intake off then the valve covers and then next will be the head of the engine I'm not sure if the millenia's have two heads or not the heads should always be milled by the machine shop and between the block and the head is the head gasket you will also have to re time the car on the timing belt.
You have to remove the engine cylinder heads to get to the lifters on the 5.3.
Remove the valve covers, the glow plugs are in the cylinder heads.
Remove carburator then intake manifold then cylinder heads
need year of vehicle first.1995
If the heads, cam, crank, and block is good then you are looking at about 1500 professional and 700 do it yourself
Cylinder heads can be bought in bulk from Sportflo in South Africa or try American Cylinder heads if based in the US. For other buyers try Bridge Cylinder Heads in Cheshire, UK.
Yes, You have to remove the intake to get the heads off.