Blue92coupe

iTrader: (1)

What head gasket do i need. Im putting ported 317's on a 5.3 with a t76. Do I need 5.3 head gaskets or 6.0 head gaskets?????????????

conan

iTrader: (5)

6.0l head gaskets, they have to clear the combustion chambers of the heads.

Blue92coupe

iTrader: (1)

ok great I was not sure if there would be any issue with the smaller bore of the 5.3 with the larger head gasket.

NemeSS

iTrader: (127)

u may have a prob. with the chamber itself. the 317 was designed for 4.00 bore. however u can run ls1 or ls2 heads withoutn a prob. as long as u use 5.7 gaskets.
however if u do go ahead with the 317, make sure to use a 6.0 gasket or
a ls9 gasket

Tally TransAm

iTrader: (17)

fwiw my 6.0L gaskets for my 317's going on my ls1 got here yesterday

part number 12589227

extremetoy

iTrader: (17)

is it ok to run 6.0l heads on a 5.3l?

Blue92coupe

iTrader: (1)

good question I was under the impression it was ok when i bought the heads but now im not so sure. Can anyone shed some light on this subject? Does anyone know of any 6ltr short blocks around lol.

NemeSS

iTrader: (127)

yes, as long as 6.0 gaskets are used