Hey everyone im not too experienced with the bottome end of the LS1 motor and have a question..... i have a pretty good set up in the car right now motor wise and has helped a lot HP wise now i do run nitrous and the car tkae pretty well to it. i plan to next year get a D1-SC procharger in the car and i want to forge the bottom end to handle about 15 lbs of boost maybe a little less.... buti dont want to change the bore of the block or anything to it just Pistons rods and maybe the crank. i dont have any idea on what sizes and or parts would be good for the setup and maybe also since ill be running that much boostdrop the compression on the motor maybe to 8.5 or 9.0 so i was wondering if anyone knew what dish piston would be good for it? or if anyone has any suggestions on what i should do or are running a set up like this that might be able to help a guy out i would appreciate it.....here is my current set up below.....

Ported heads 225CC in. and 90 ex. i believe
224/224 558/558 114 CAM
Manley race flo valves intake and exhaust stock sizes
comp R rockers, Comp pro mag lifters and hardened rods
and of course bolt ons

any thoughts? thanks,
chris

 

get in touch with a couple of sponsors; they all can provide you with a well built low compression forged bottom (346-348ci).

 

Pistons 3.905 .927 pin -10cc
Rods 6.125 with .927pin.
This should get your CR down to 9.0 for the boost. U might want to go even lower on the CR.

 

Our cheap street shortblock can come equiped with the right parts to make your low compression for the blower. It will come with the following parts:
Diamond #11503 blower pistons
Diamond Proselect ring set
Diamond wrist pins
Eagle H Beam connecting rods
Clevite CB663H connecting rod bearings
Federal Mogul 152M main bearings
Fully machined
Balanced & blueprinted
ARP main studs

Cost of this shortblock is $2799.00. If youhave any other questions please feel free to ask us.

Thanks,