milling VVT piston domes to reduce compression
#1
milling VVT piston domes to reduce compression
Like this poster from another forum says:
Chevelle Tech - View Single Post - 10.25:1 pistons for 71' 402
Anyone thought about this? Milling the rectangular pad or "dome" by 0.8 mm will reduce c/r from 10:1 to 9.7, and by 1.8 mm will reduce it from 10:1 to 9.3. I wonder if the 10:1 pistons have more meat here than the 9.4 ('99) pistons.
Y8s, can you measure the thickness of the crown of the 99 pistons you have?
Chevelle Tech - View Single Post - 10.25:1 pistons for 71' 402
Another option is if your TRW`s are in good shape, have a machine shop mill the dome down to give you the copmression ratio you want. Most hi-po machine shops should be able to do this and would be able to figure out how much to take off.
Y8s, can you measure the thickness of the crown of the 99 pistons you have?
#6
Has anyone checked to see if you can by a head shim for the mazda head. I know for my mopar 440 you can buy varying thicknesses of head gasket for this purpose.
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04-21-2016 03:00 PM