[DeTomaso] Intake installation tips?

Thu Oct 5 10:30:35 EDT 2006

What are the casting numbers?

Dan
----- Original Message ----- 
From: "Asa Jay Laughton" <asajay at asajay.com>
To: <detomaso at realbig.com>
Sent: Thursday, October 05, 2006 10:19 AM
Subject: Re: [DeTomaso] Intake installation tips?

> Will,
> Take a closer look, I think that hole goes nowhere.  on the right bank, it 
> can't go anywhere because there isn't enough metal.  On the left bank, 
> it's too high to hit the water jacket.  Look more to me like a couple of 
> boss holes for something, but what I can't tell you.  Kind of like the two 
> extra holes on the heads in my AMC(Kaiser) 327 that go nowhere, they just 
> fill up with dust, dirt, and crap.
>
> The steam relief you are mentioning is usually (if I recall correctly) 
> drilled a bit lower into the end of the head to make sure it hits the 
> water jacket.
>
> Asa Jay
>
>
> Will Kooiman wrote:
>
>> I just noticed something else.
>>
>> Take a look right above the water jacket hole.  There's a steam hole 
>> drilled
>> into the intake face that mates to that squarish section at the end of 
>> the
>> heads.  You know how people drill that at the back of 351C heads to 
>> relieve
>> the steam?  Apparently Boss 302 heads took care of this from the factory.
>>
>> 351C heads don't have that steam hole drilled.
>>
>> If you take a look at most 351C intakes, they have a boss cast that mates 
>> to
>> this hole.  My intake gaskets have a hole for this as well.  My A3 heads
>> have the hole drilled and plugged with a threaded allen plug.
>>
>> I wonder what the boss 302 intake did with the steam.  Probably nothing.
>>
>> -----Original Message-----
>> From: Will Kooiman [mailto:wkooiman at earthlink.net]
>> Sent: Thursday, October 05, 2006 1:43 AM
>> To: redvobra at aol.com; detomaso at realbig.com
>> Subject: RE: [DeTomaso] Intake installation tips?
>>
>>
>>
>> Bad news, bro.
>>
>> Those are Boss 302 heads not 351C heads.
>>
>> The intake face will probably seal with 351C gaskets, but your engine is
>> going to overheat.
>>
>> The water enters the block at the front.  It goes in the two holes right
>> behind the water pump.  It goes all the way to the back, up into the 
>> heads,
>> and back to the front.  On the 351C, the water goes back into the block 
>> and
>> out the water neck/thermostat.  On the windsors to include the Boss 302, 
>> the
>> water goes into the intake and to the water neck/thermostat.
>>
>> Since you have Boss 302 heads, the water isn't going back into the block, 
>> so
>> it's never getting back to the radiator.  If you look at 351C head 
>> gaskets,
>> you'll see a square hole about the size of a quarter near the front. 
>> Your
>> heads won't have a hole there unless they've been modified to fit a 351C.
>> Consequently, the water will stop, and you're going to overheat.  One of 
>> the
>> first signs will be pinging followed by boiling water.
>>
>> Boss 302 intakes had a thermostat housing cast into the intake.  351C's
>> don't have that.
>>
>> Now, as I mentioned, if the heads have been drilled on the head gasket 
>> side,
>> maybe they'll work.  You should be able to tell by looking through the
>> existing water jacket hole.  You could maybe stick your pinky or a piece 
>> of
>> wire through the hole to see if it makes it several inches below the head
>> gasket area.  If the wire stops, so will your coolant.
>>
>> The good news is the heads are probably worth more than standard 351C 
>> heads.
>> You could either pull them and sell them for a rebuilt 351C set of heads, 
>> or
>> you could drill the proper coolant holes using a head gasket as a guide.
>> Either way the heads will need to come off.
>>
>> The other good news is once you fix this, it will run better than ever.
>>
>> Will.
>>
>> -----Original Message-----
>> From: detomaso-bounces at realbig.com
>> [mailto:detomaso-bounces at realbig.com]On Behalf Of redvobra at aol.com
>> Sent: Thursday, October 05, 2006 1:19 AM
>> To: detomaso at realbig.com
>> Subject: Re: [DeTomaso] Intake installation tips?
>>
>>
>>  I hear ya, so something wacky is going on! Take a look at this photo, I
>> have marked the holes in red:
>>
>>  http://augerresources.com/ashtonsgarage/misc/waterjackets.jpg
>>
>>  They were full of coolant. I thought it was weird as hell that the 
>> gasket
>> just covers them and that there are no corresponding holes that match up 
>> to
>> the intake. Let me know what you think!
>>
>>  -Chris
>>
>>  -----Original Message-----
>>  From: asajay at asajay.com
>>  To: detomaso at realbig.com
>>  Sent: Wed, 4 Oct 2006 8:47 PM
>>  Subject: Re: [DeTomaso] Intake installation tips?
>>
>>   Um. No.
>>
>>  The 351C head has a water jacket in it yes, but it is ONLY accessible 
>> from
>> the block side (combustion chamber side) of the head. The side facing the
>> intake has zero, zilch, nada, none, as in it ain't got any holes at all 
>> for
>> water on the intake side.
>>
>>  Therefore if it is leaking, it is coming from the head gasket, not an
>> intake gasket (because there are no coolant holes facing the intake.
>>
>>  Now, if that is what you meant Chris, my apologize, I didn't understand
>> your post properly.
>>  :)
>>
>>  Asa Jay
>>
>>  redvobra at aol.com wrote:
>>
>>  > There are water jackets in the head though, which are capped off by
>>  > the gasket and air intake. It's leaking from the head side of the
>>  > gasket.
>>  > > -Chris
>>
>>  -- Asa Jay Laughton, MSgt, USAFR, Retired
>>
>>  & Shelley Marie
>>  Spokane, WA
>>
>>  1973 Pantera L 5533
>>  [ASASCAT]
>>
>>  ******************************
>>  http://www.asajay.com
>>  http://www.351c.info
>>
>>
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>
> -- 
> Asa Jay Laughton, MSgt, USAFR, Retired
>
> & Shelley Marie
> Spokane, WA
>
> 1973 Pantera L 5533
> [ASASCAT]
>
> ******************************
> http://www.asajay.com
> http://www.351c.info
>
>
>
> _______________________________________________
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