i have a ls block with a gsr crank what rods and pistons should i use not really trying to go over $500 on them or what oem parts could i use and this is going to be a boosted setup thanks for any suggestions

 

ok i got the pistons and rods from a buddy they are from a gsr should i use a ls crank or gsr with a ls head

 

Keep the ls crank with the ls block....And you match the rods with the crank you use. also, get rid of the ls head and get a vtec head.

 

whats better a ls bottom end or a gsr thinking of going with a b16 head now i keep changing my mind but when im done ill have lots of parts for sale lol

 

come on no ideas or help guys ok well i m using the ls block using a gsr crank with gsr pistons and rods and arp everything with a block guard and staying with the ls head even though every hates them going for 12psi boost will this b worth a f***???

 

12lbs on stock pistons?save up some money and buy forged or keep it around 10lb..the gsr crank will fit fine no problems,you will need 9mm arp bolts for your gsr rods,i would go with a Ace bearing set and have the crank polished...shared_pm allshownogo maybe for your 500 he will sell you his perfect set of eagle rods with 81.5 wiseco pistons

 

^if he's going with the 81.5mm's then the block will have to be bored .5mm bigger. i'd say take the block and crank to a machine shop, get it bored and have them polish the crank. and personally i'd go with Clevite77's or Calico bearings. also have them shot peen your rods, after which they'll have to resize them and press in new bushings but it'll be worth it on a boosted build.

and i wouldn't recommend Eagle anymore, we've been having problems with there products. we've gotten two cranks in the past month that have been soft (not heat treated right) and they ended up spinning bearings.

 

the block is already been line bored and bored over to 81.5 and i have gsr crower rods cant remember what brand piston but they are forged and it will be tuned

 

then your set. get a good set of bearings/rings, new water pump, oil pump, gaskets and you'll have a solid short block. the only thing i would change is if you have a block gurdle from the GSR then put that on the LS, it's a direct bolt on fit. it gives the main caps added strength.

 

ok will do thanks for the help everybody