how much boost do you think a b20 block could handle with just a block guard some golden eagle rods and golden eagle low comp pistons?

 

8-12 lbs
but it could handle 30lbs for 1 min.

 

what length rods do you think i should go for?

 

3 million inches long.

 

Its not a matter of PSI, but rather HP figure.

I'd say stock sleeves can handle 300-325hp. The walls are thinner than a B18s.

 

LOL

You could go crazy like me and sleeve it with arp main bolts and get 20 psi 450-500 hp

Just to be on the safe side i would do 8 lbs, then tune the hell out of that beast!! They are thinner sleeves.

 

if i go with golden eagle rods what length sould i get? ive never built a motor so idk. any info would help

 

re-sleeved able to push 42 psi and fully built bottom-end and a built head ftw!!! 600-700 HP!!!!

 

but can only push like 32 psi max

 

stock sleves tend to handle around 500 hp, yea they are thinner then the b18c but not by much.
DONT USE A BLOCK GUARD, they do noithing for your engine, and wont save your sleeves.
for the length, im not sure just go oe length.

i would say 15-20 psi would be the max. with a great tune.