All Small Six XFlow Head

[aussie7mains]

What’s the benefit of Hydraulic for a Strip application?

None really, but if your going to use a 250 even a crossflow, you wont get a lot of power beyond 6000 even with a quite radical engine, SO, hydraulics will work and save a lot of expense. The stock rocker arms are OK when new, we down here have iron fulcrums for the rockers, not alloy. Also the crossflows need fairly stout valve springs due to the valve train mass, and they only have a small base circle on the camshaft, some guys get lobe wiping if the pre-run lubrication of the cam is inadequate, this would be worse with a solid lifter cam. As another indiction, Ive had Windsor V8s to run to over 6500 on hydraulics without any fancy works.

 

[gb500]

Re solid cross flow cams- search the crow cams website.

They List 4 solid grinds for the crossflow six.

For a $499 AUD.. which is about $330 USD

 

[chad]

"...valve float and lifter pump up starting at 5200 rpm. Shimmed the springs for another 20 lbs and the engine will now go to 6500 but I feel there is still..."
same ol, same ol? The OP/builder needs to dial in the typical Q of:
"80% of the application's RPMs.", no?

Need to focus on this as he's lookin 4 a 'multipurpose' vehicle (st/strip) ?
We find it w/the bronk (on/off rd). Tough enuff w/a vehicle but add the 'dual purpose'
it all gets away from me quickly.