The best replacement for ls block is gsr block.

The best alternatives to ls block are rated as following:
★★★★★  gsr block
★★  b20 block

Your alternative for ls block is not listed? Suggest!
Speaking about ls block, one probably shouldn't forget about gsr head.

Other search terms related to ls block and their ratings are:
★★★★★ gsr head
★★ b16 head
★★ gsr crank and rods
★★ type r head
You have in mind a companion for ls block and it is not yet here? Propose!



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ls block
gsr block
b20 block