I'm building a B16A block with H-beam rods, forged 9:1 pistons, ARP bolts and a built head. How much power will the sleeves handle before they crack? assuming a block guard was installed.

 

There is no definite answer on how much they can handle?It depends on the turbo used the tune and how well the notor was taken care of until now?I would guess 300-400 safely .I am sure you can make more but anything above that is risky.

 

they can take anywhere from 600whp on a PERFECT tune to 200whp on a crappy tune...

 

its all about the tune

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by markaria &raquo;</TD></TR><TR><TD CLASS="quote">they can take anywhere from 600whp on a PERFECT tune to 200whp on a crappy tune... </TD></TR></TABLE>

Hahaha thats the truth

 

block guard isnt going to make the block have better structural integirty in the sleeves themselves as they are still going to be aluminum sleeves. not ductile iron.

honestly block guards are just piece of mind, make you feel like you are servinig a purpose that it in reality isnt.

either dont use a block guard use it if you want or sleeve the block

400 is around the max whp depending on the compression and other aspects ect