specifically, iif anyone has compared blocks.
i know astron I balance shafts have a different profile to astron II shafts.
My question is (the tp had an astron II head) so when was the astron II brought in? was it tr, tp or earlier?
differnce between 4g54 tr ts and 4g54 <tp
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astronturbo77
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Re: differnce between 4g54 tr ts and 4g54 <tp
astron 2 was introduced in the GN sigma i think?
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