Jesus Lopez

I'm picking up an LM7 complete block tomorrow which I plan on taking the short block to use with my current set up due to budget reasons.

On my old set up I'm running the stock ls1 bottom end with the ported 241's, trex. Fast 92 and 100 wet shot

Would you guys recommend using my ported 241's which I have been using with no problems along with the trex cam or use the 5.3 heads??
I'm hoping the 241 will help bump the compression?

I'll be running Ls9 gaskets if it makes a diff.

Also what power range you guys think I might be at with a 200 shot on that set up.

Thanks!

KCS

iTrader: (20)

The 241 heads have larger chambers than the 5.3L heads, so the 241's won't increase the compression ratio.

Jesus Lopez

You suggest I stick with the 5.3 heads?

KCS

iTrader: (20)

Not necessarily. Compared to ported 241's, the extra compression of the 5.3L heads probably won't be worth the trouble. I would probably stick with the 241's, or sell them and port the 5.3L heads.

Jesus Lopez

Ill run the 241's for now while I save for better ones.

As long as I'm close to what I'm pushing now ill be happy, i made 390 NA and 510 on the juice with my LS1