6PakBee
Well-Known Member
Anyone got an idea how much lift the stock roller lifter spider based retainers can handle? I would think that there is a point where the spider can't control the lifters and you have to go to the link arrangement.
Anyone got an idea how much lift the stock roller lifter spider based retainers can handle? I would think that there is a point where the spider can't control the lifters and you have to go to the link arrangement.
How much lift are you wanting to run?
Two of my sons run the magnum spider setup.
One runs .575" lift with stock spider setup and stock magnum rockers.
The other runs .565" lift with the magnum spider and 273 adjustable rockers on edelbrock LA heads on a magnum block.
The 565 lift cam was .380" lobe lift. If I remember correctly, there was enough room for .400+ lobe lift.
The size of cam's base circle will make a difference too.
I hope this helps.
I don’t think the spider has issues. I think the oil band on the lifter body will, but at what lift I do not know. The lifter bores are much more uniform as compared to the earlier LA engines and much taller. Again, how much lift hey can handle I do not know. But Sam’s kids run a good bit I see.Anyone got an idea how much lift the stock roller lifter spider based retainers can handle? I would think that there is a point where the spider can't control the lifters and you have to go to the link arrangement.