i'm seriously considering a b20 turbo... i already know that this will require new sleeves, but is has also come to my attention that some of people recommend switching out the b20 crank for the ls crank. would this be beneficial?

 

i thought it was the same crank in both b20 and b18a/b

 

that was my understanding of it too... but i recall reading from somewhere that the ls crank would be better for high rev

 

same crank .. motors jsut have different bore

 

B18a crank is different
B18b and B20b/z are the same

Ls cams are different than B20 cams

 

I have never noticed any diff between the b18a/b and the b20. If there is a slight difference, it is certainly not worth swapping for any reason.

 

whats the diff from b18a and b18b crank????

 

alright... it sounds as if we have a concensus... they're the same crank

 

i havef been told that the b18a and b18b crank are different

 

Ok I wasnt clear

90-91 B18a cranks are different
92-93 B18a 94 + B18b are all the same

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tRaCeBuStAbUsTeR &raquo;</TD></TR><TR><TD CLASS="quote">whats the diff from b18a and b18b crank????</TD></TR></TABLE>

Anybody?? Never heard this before.

 

G3 LS crank weighs 34.5 lbs
G3 GSR crank weighs 35 lbs

 

sorry too bump an old thread but i was under the impression that the b20 crank has larger diamater rod journels