Need 273 Steel Head Gasket

[805moparkid]

so where are you guys buying the .021 factory head gaskets? the 273 we rebuilt is .020 over. we dont want to run the 318-360 gaskets as they are huge!

any help?

 

[toolmanmike]

Not made anymore last time I checked. Cometic has multilayer gaskets that are pretty thin and you can order them in whatever bore size you need. Not cheap though. tmm

 

[Abodybomber]

Cometic customs,not cheap Ed.

 

[Abodybomber]

The Mr Gasket 1121,[email protected] thou.That 4.0 bore ,sucks.

 

[805moparkid]

this is a 9:1 273... no way were putting 300 dollar head gaskets on it... so im looking for NOS stuff huh?

 

[805moparkid]

The Mr Gasket 1121,[email protected] thou.That 4.0 bore ,sucks.

found a 3.9 .021 gasket. might be as good as it gets

 

[Abodybomber]

Nice find,,Ed. I think,good as it gets.

 

[805moparkid]

Nice find,,Ed. I think,good as it gets.

hmm sad...

 

[Abodybomber]

Agreed.

 

[273]

the gasket bore size doesn't effect CR as much as it's thickness

 

[805moparkid]

the gasket bore size doesn't effect CR as much as it's thickness

so you dont think a 4.*** gasket on a 3.650 bore is going to effect compression?

:wack:

besides that you make a great place to create carbon, get hot spots, and a host of other issues...

 

[Abodybomber]

Real life,in a real build....^^^

 

[273]

so you dont think a 4.*** gasket on a 3.650 bore is going to effect compression?

:wack:

besides that you make a great place to create carbon, get hot spots, and a host of other issues...

I said as much, try a compression calulator and check it out, I did a 0.021" one with a 3.655 bore and a 4.125 it went from 10.06:1 to 9.95:1

 

[Rocky_JS]

Taken more than a few apart with the big bore head gaskets and haven't really noticed any hot spots. It is however definitely a carbon trap. Where did you find the small bore head gaskets?

so you dont think a 4.*** gasket on a 3.650 bore is going to effect compression?

:wack:

besides that you make a great place to create carbon, get hot spots, and a host of other issues...

 

[Abodybomber]

805 ,does not take"no" for answer.The guy ,known better.He's a craftsman....

 

[bad440]

The Mr Gasket 1121,[email protected] thou.That 4.0 bore ,sucks.

was best fit for mine...

 

[805moparkid]

I said as much, try a compression calulator and check it out, I did a 0.021" one with a 3.655 bore and a 4.125 it went from 10.06:1 to 9.95:1

yep tenth of a point, but the other issues are my problem.

Taken more than a few apart with the big bore head gaskets and haven't really noticed any hot spots. It is however definitely a carbon trap. Where did you find the small bore head gaskets?

the hot spot comes from the edge of the cylinder, granted its chamfered but still a edge unless you round it.

its an NOS one so i cant tell you as we need it lol...

805 ,does not take"no" for answer.The guy ,known better.He's a craftsman....

makes me a PITA but i dont like doing things twice, especially on a customer car!

 

[Abodybomber]

Ed,,this is your living,no compromise...(Considering,the final bill).

 

[805moparkid]

Ed,,this is your living,no compromise...(Considering,the final bill).

she is so excited. the current second owner is the granddaughter of the original owner. she road in this notch cuda as a little girl, and has no idea how nice it it!

 

[Abodybomber]

:glasses7: Damn cool.

 

[Abodybomber]

Don't even get me started, on notchback Cuda's ,Ed .I'll go on a babbling crusade....

 

[805moparkid]

Don't even get me started, on notchback Cuda's ,Ed .I'll go on a babbling crusade....

huh?

 

[RustyRatRod]

Just clean the old one up and spray hell out of it with copper coat. LOL

 

[805moparkid]

Just clean the old one up and spray hell out of it with copper coat. LOL

one ones are long gone...

 

[RustyRatRod]

Then slob some K&W block seal on the head and block and torque hell out of it.