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just ck'd this w/ GM, same part number, I was interested to see the recent jump to the LS7 lifter, it's just a nomenclature change the #'s are the same
if anyone has contradicting information, please post
I thought I saw something over on the ls1tech site about new designed lifters for the 'LS7'. Since the LS2/LS7 blocks are basically the same as the LS1/LS6 blocks, the lifters are interchangeable
They are a revised/improved version of the old roller lifter that will now be the standard. However, there's also a version designed for the high revving (8500!!) Cadillac CTS-V racing motor. They're twice the money, however.