Engine/Transmission (1998.5 - 2002) 3rd Gen Head Gasket on a 24v?

[Alphacowboy]

Was told by someone that since I am replacing my headgasket, i should use a 3rd gen gasket instead of the stock 24v version? Anyone one else hear of this? Is the 3rd gen gasket that much better? Is it a direct replacement or is there some other stuff ya gotta do?

 

[AGregersen]

yes it is a multi layer gasket and can hold more boost.

 

[Alphacowboy]

Would I be smart to return the one I got and get a 3rd gen CRD gasket then? If so, is it a direct swap? Good combo with head studs?

 

[TCluff]

I actually posted this question a few months back in reference to a buddy's truck! The MLS head gaskets are stronger and less prone to blow through but there was a vendor or two that chimed is saying that there are some differences in the oil passages in the heads! I dont remember which vendor it was but it is something you should check into before slapping one on and grenading your engine!

 

[TCluff]

Just did a search... Evan Beck from Dynomite Diesel is the one who said that. PM him and i am sure he can give you all the details!

 

[getblown5.9]

doug smith from PDW knows his stuff and even he says the 3rd gen oil passages are different and they wont work.

i would however return that stock gasket and get the modified 12v marine gasket from PDW... it weighs twice as much and is almost as tough as the MLS gasket because its all metal, none of the paper junk.

 

[DCreed]

what IS the strongest no machining involved head gasket for a 24v?

 

[getblown5.9]

a 12v marine gasket from a vendor who has already done the mods necessary to make it work on a 24v.

like i said, when i put mine on, its twice as heavy and its all metal.

 

[TCluff]

How much boost are you running with that 12v marine gasket and about how much does it cost?

 

[RCenters]

I tried a 3rd gen and it leakd oil in the water , Doug makes a 12v marine to fit the 24v

 

[getblown5.9]

im running the marine gasket with o-rings and ARP studs, but im only putting about 52 psi boost through it. im getting a good complete burn with EGT's never going over 1400 but i couldnt tell ya what the cylinder pressures look like.

with proper tq on ARP or other high quality head studs, flat surfaces, and a marine gasket will hold up to and prolly over 80psi

 

[DCreed]

then why u oring if didnt need to at 52psi. ??

 

[RossA]

a 12v . 20 over marine gasket is by far the best gasket you can put on a 24v truck period.

 

[NoSeeUm]

im running the marine gasket with o-rings and ARP studs, but im only putting about 52 psi boost through it. im getting a good complete burn with EGT's never going over 1400 but i couldnt tell ya what the cylinder pressures look like.



with proper tq on ARP or other high quality head studs, flat surfaces, and a marine gasket will hold up to and prolly over 80psi

Depending upon your altitude, 1050 to 1100 psi.



Jim

 

[getblown5.9]

then why u oring if didnt need to at 52psi. ??

well because i was already having the head rebuilt because 24v are notorious for crappy seat, and guides, and also cracking. so in the process of making sure the head was good to go back on with no problems i figured $300 to o-ring was a small drop in the bucket while i had the head off. rather safe than sorry because i do not want to pull the head off again.