I just picked up a aluminum block LSI. I would like to freshen it up, and swap it into my 70K20, or use it as a spare engine. I will be running 317's, truck gaskets, and studs. Planning on a T67, or T70 @10~12PSI MAX. Thanks, J

 

what is your definition of "pushing"

 

LOL, your not there yet Bill.....

 

I've pushed them pretty hard. You can push an LS1 block to a 900-1000 rwhp... with the 01-up blocks being preferred. The C5 guys do it quite often. I have an LS6 just in case the lil ole 5.3 starts wheezin ... and yes, the boost will go up if I build it

Bill

 

Consistant mid 11's, and an accidental high 10 on occasion That 70 weighs about the same as my 03 but takes alot more HP to push.

 

Push it until it blows up fix it, and back er down a little

 

Back it down? NO WAY! Built it stronger next time

 

you know what? kiss my boootay. I got my 5200lbs leather seated 4x4 in the 11's....with an Aluminum block 5.3L

 

These motors will make 750 rwhp on a stock block and run tens all day long.....Push it.

 

L M F A O
BC you rock!