small journal or large journal?

im about to order some ARP main studs and i dont know which ones i need, a large journal or small journal set

Are you asking a question?:confused:

yeah i worded it all retarded
sorry
how do i know if i need small journal or large journal studs?

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Originally posted by muteboy49
im about to order some ARP main studs and i dont know which ones i need, a large journal or small journal set

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If you have the engine apart have a machine shop measure your crank main bearing dia.

what are the specs. for small and large journals?

Large journal caps are a little taller and require a little longer stud. In 1968 the main bearing saddles were increased in size from 2.3" to 2.45", so if your block was manufactured before that, it's a small journal, after that it's a large journal.

Small journal cranks have a main diameter of 2.300" and a rod diameter of 2.000".

Large journal cranks have a main diameter of 2.450" and a rod diameter of 2.100".

thanks my block is a 89 i believe