lifter bore grooving

[Belgian1979vette]

Did someone here ever groove their lifter bores to aid in the oiling of roller lifters to prevent failure. Pro's con's ?

 

[Twin_Turbo]

Not me, maybe CNCBlocks???

 

[CNC BLOCKS]

Not me, maybe CNCBlocks???

I have never had to groove any lifter bores in any of the engines I have built as that was designed for flat tappet engines not roller lifter engines.

 

[larrywalk]

Been thinking about getting one of those tools for my flat tappet applications, but IMO, they're not needed for roller lifters.

 

[CNC BLOCKS]

Been thinking about getting one of those tools for my flat tappet applications, but IMO, they're not needed for roller lifters.

I would not bother with lifter bore clearance and oil pressure there is more then enough coming around the lifter bore.

That grooving tool came out when the market was getting hit with mexican and chinese lifter and cheap cam cores.

I build alot of circle track engines with flat tappet cams and no issues, But I always use a P-55 cam core and on hyd. lifters use only GM lifters with the steel bottoms and solid lifters I use only tool steel lifters and they seem to work fine.