kistlerjm9

iTrader: (24)

im aware the bore inorder to use these heads needs to be at least 4.00. i was wondering, however, how far u can bore a stock ls1 block safely? has anyone tried to put the l92's on an ls1 and what was the result if you did? thanks for the help.

PREDATOR-Z

LS1 bore is 3.898
It can be bored to 3.905>3.910 (depending on year of block)

So no L92 heads can't be run on LS1, but on LQ4/9 (ie: 6.0) they are in the game.

silver-mod-o

iTrader: (15)

bad valve shrouding issues when ran on an LS1... even a bored/sleeved LS1, get yourself a LS2 or iron LQ4/9 block and go from there.... You'll be golden

Sandmann120

iTrader: (1)

I thought I had heard of someone offering the L92 style head that was designed to be used with a 3.905 bore. I'll see if I can find more info.

PREDATOR-Z

That is a small bore L92. Special edition ported.

Sandmann120

iTrader: (1)

Do you remember who offers it?

PREDATOR-Z

https://ls1tech.com/forums/generation-iv-internal-engine/724276-etp-11-degree-l92-castings-small-bore.html

Sandmann120

iTrader: (1)

Thanks.

the_merv

iTrader: (88)

Go 6.0l Block and build it..no replacement for displacement.