88crxSi

yah thats all i really meant was HG and valve cover gasket.

projekteg

is the r/s ratio really that bad though?? maybe if i just slapped a b16 head on a b18 block with no machine work or internals, but i think it'll be fine with lighter forged pistons and rods??

ShadowRex

Have to post to this so i can keep note of it cause i am learning along with you..

If I remeber correctly, a lighter assembly will rev a little faster than a heavy stock one. Less mass less weight easier to move. physics stuff lol. Dont forget about the flywheel also.

I dont know about the r/s though

88crxSi

yah id say thats correct. less reciprocating mass. my a6 revs really quick with about 8lbs shaved off the stock flywheel.

Earlier in this thread i mention about shorter rods. I think I was mistaken. the stroke is actualy shortened by the crank. LS crank has longer stroke then the gsr crank. correct anynone?

ShadowRex

yes the LS crank has a longer stroke due to the fact it is not going to rev so high. Well not unless..........


I think The c/r is differant on the gsr also isnt it?

projekteg

well, if you put a gsr crank in an ls to shorten the stroke, wouldn't there be a bigger piton to valve/head clearance?

88crxSi

hrmm.. i guess youd have to get gsr pistons too

i bet the LS pistons have a shorter wrist pin to top of piston height too.

projekteg

prolly, i don't really know too much about internals, stroke, c/r, etc. *yet*

88crxSi

lol you're one step ahead of me in the engine knowledge kevin

projekteg

i know how to swap one, that's about it :P been doing a lot of reading though, i don't think it's gonna be as complicated as i though.........