The first blown pump gas KB street Hemi block I assembled and dyno tested years ago leak water into the motor due to the sleeves being a tad bit too high whiney, .005/.006 instead of .003 to .004 at room temps. It was a 4.375 bore with a Mopar brand 8 bolt 4.150 stroker crank.
Long story short I ended up working with SCE gaskets to get a custom set of their ICS Titan head soft copper head gaskets made to cure all the gasket sealing issues I had with that project up scope
I'm getting ready to start making a 4.500 bore new KB street wedge 572 C.I. B1 race motor for myself and I bought a set of the SCE Titan head gasket with the Teflon sealant rings around all the water passages ,
That type of gasket worked really well for me on the last KB aluminum block I built: up:
I've also use them on other cast iron blocks high compression builds and roots blower motor builds with really good success up IHTHs luck

SANY0229.JPG
Last edited by Cab_Burge; 02/24/22 07:41 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)