rjw

iTrader: (3)

This is for a 3.905 bore

Anyone who has actually measured them, could you give the dimensions and maybe part number.

Also recommend for 10 psi sc application w/ NOS

I've been searching and coming up with different answers.

Thanks

PREDATOR-Z

Which MLS???

rjw

iTrader: (3)

OEM or Cometic...Pick one and let me know

TAQuickness

iTrader: (28)

your question seems broad

rjw

iTrader: (3)

Ok

The OEM composite gasket measured 3.965 to 3.975 bore and was .054 thick.

How does this compare to other gaskets, including the MLS gaskets from either Cometic, OEM or otherwise.

I am asking, because the bore and thickness will obviously effect CR

PREDATOR-Z

119-C5475 Cometic MLS Cylinder Head Gasket, LS1 Engine, .051 thickness, 3.910 bore (sold individually) 85$$/side >>>>(TR)
and
119-H1294045S Cometic MLS Cylinder Head Gasket, LS1 Engine, .045 thickness, 3.905 bore (sold individually) 85$$/side >>>>(TR)

Phil'sC5vette

iTrader: (4)

I thought stock GM MLS was .054

TAQuickness

iTrader: (28)

that's debatable. I've heard anywhere from 0.049 - 0.056. I have a set I'll be measuring in the next week or so

rjw

iTrader: (3)

This is precisely why I asked the questions.

Does the Cometic MLS actually measure 3.910?

My oem's were .054 thick and slightly oval..between 3.960 and 3.975

So split the difference and you get around 3.967 before distortion.

Measured with Mitutoyo digital calipers (calibrated)

I would prefer a gasket that would better match the 3.905 bore, rather than being .060" over.

Phil'sC5vette

iTrader: (4)

TA
send me a PM when you gauge the gasket on what thickness it really is