[DeTomaso] Intake gaskets

[Larry Finch]

Mike,

Thanks. But......

My CHI 4V heads have no crossover. 

That likely changes your recommendation??

and what happened to the Victor reinz gaskets??

BTW  the MS96012 is a valley pan design. 

What is a good conventional gasket if not using the valley pan style?

Larry 

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Sent from me using a magic, handheld electronic gizmo. 

> On Mar 16, 2021, at 8:14 PM, Mike Drew <MikeLDrew at aol.com> wrote:
> 
> ?Larry,
> 
> The engineers who designed the 351C insisted that a valley pan gasket must be used. This is because the intake manifold has an exhaust crossover that routes some of the gas from the exhaust ports into the intake under the carb, to promote faster warmup and better fuel atomization. 
> 
> This makes the underside of the intake very hot. The valley pan gasket shields the underside of the intake from the oil splashing in the lifter valley. Otherwise, the result can be coking of the oil, leaving nasty deposits that can then pollute the oiling system, clog passages etc. 
> 
> For years the standard 351C gasket was the Fel-Pro MS96012.  That?s for 4V heads. The 2V version is MS96010.
> 
> If your intake has been modified to weld up the exhaust crossover, you can use conventional gaskets. 
> 
> Whatever you do, under NO circumstances should you even remotely consider using the Fel-Pri Print-O-Leak gaskets. They are beyond horrible and have failed time and time again.  The normal failure mode sees the engine sucking oil from the lifter valley into the inlet fir one or more cylinders, leading to poor running, high oil consumption, fouling of the plugs and smoke out the exhaust. I have no idea how Fel Pro can continue to make these things considering how awful they are, in virtually every engine I?ve ever dealt with. 
> 
> You and I mutually know a guy who decided his engine had gone bad and pulled it from the car and commissioned a full rebuild when there was nothing wrong except a bad intake manifold gasket!
> 
> Mike
> 
> 
> 
> 
> 
> 
> 
> Sent from my iPad
> 
>> On Mar 16, 2021, at 19:55, Larry Finch via DeTomaso <detomaso at server.detomasolist.com> wrote:
>> 
>> ?All,
>> 
>> 2511 shakedown miles have revealed oil leaking where the intake manifold mates to the cylinder heads. 
>> 
>> My notes show Dan Jones once recommended Victor Reinz 95078SG gaskets but they seem to no longer be available?
>> 
>> Also mentioned by Dan were Mr. gasket 214 and the Fel-Pro Printo-seal 1228 which at one point had a bad reputation for leaking. 
>> 
>> Did Fel-Pro fix their leaking problems and can the 95078SG gasket still be found somewhere?
>> 
>> Wisdom and advice appreciated,
>> 
>> Larry
>> 
>> Sent from me using a magic, handheld electronic gizmo. 
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