Stock Hyd Roller Lifter Limit

[MOPAROFFICIAL]

It'll be fine, like crackedback n other have said. Id say .600+ lift might be dancing in the fire, but whos on that level and not spending there anyways.
Last hyd roller I did was on the smaller side for a street rod. Herbert .532 w/1.6 225/235@.050 (112 for power accessories). It lays it for days and sounds pretty sprite

 

[TT5.9mag]

Herbert .532 w/1.6 225/235@.050 112.

I like that for a street 408. What was your combo?

 

[JoePole1]

360 Magnum with factory roller lifters. Street car with spirited driving. Oregon regrind .535 lift. 1.6 ratio and hughes 1110 spring kit.
No issues with around 5k miles.

 

[MOPAROFFICIAL]

I like that for a street 408. What was your combo?

.040 over 360
9.7 Compression /kb pistons
Ported 974 heads 260int/204exh cfm w/ 2.02,/1.60 11/32 valves.
1.6 rockers
Port matched air gap with Fitech
Headmans into 3" duals.
Sounds nastier than the specs.

 

[360duster]

I ran 250°/250° @ .050", .621" Lift with 1.6 Rockers, comp QNX Lobes #13578. Zero Problems with the stock HR-Lifters, regularely ran the engine to 6500 rpm. I personally think these are better than people think.

Michael

 

[MOPAROFFICIAL]

I ran 250°/250° @ .050", .621" Lift with 1.6 Rockers, comp QNX Lobes #13578. Zero Problems with the stock HR-Lifters, regularely ran the engine to 6500 rpm. I personally think these are better than people think.

Michael

Springs used?

 

[360duster]

unfortunately i can´t tell.....don´t have the numbers. Got these Heads prepared for the application from Brian @ IMM Engines.

 

[crackedback]

unfortunately i can´t tell.....don´t have the numbers. Got these Heads prepared for the application from Brian @ IMM Engines.

Beehives?

 

[360duster]

no beehives, regular cylindrical ones.

Merry Christmas to you all from Germany!

Michael