well i have gone threw two blocks a head and a turbo this year. My last block lasted one pass, and four hours on the dyno, and i beat the guy by 2 thousanths of a second on a shitty pass . I am going to have my next block sleeved and i am searching to find the best sleeve for the money. I have heard good things about the darton sleeves and have also heard good things about golden eagle sleeving. I have been leaning toward the darton sleeves and notice that they have a performance sleeve and a mid sleeve. what are the power differences between the two? the last two motors were right at 522@22psi (this was the motor that lasted one pass) and 534@29psi. keep in mind that was stock sleeves on both, just pistons and rods. Can anyone tell me what the real power differences between the two are?

 

534
-522
--------
12

The real power difference is twelve.

 

the different power numbers are two different block at different psi.

 

not the power differences in the hp. The difference between the performances sleeves and the mid sleeves power rating wise...