[DeTomaso] Intake installation tips?

[Asa Jay Laughton]

Thank you Will, for reminding me.  I forgot about the BOSS 302 heads 
which -are- basically the same as the 351C head with the water holes in 
the intake side.

I believe Ford Racing has an illustration on their website that shows 
the head modification (to drill the hole) in the face of these heads, 
but I've no time to go looking for it now.

Good catch!
Asa Jay

Will Kooiman wrote:

> 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]
> 
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>  http://www.351c.info
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-- 
Asa Jay Laughton, MSgt, USAFR, Retired

& Shelley Marie
Spokane, WA

1973 Pantera L 5533
[ASASCAT]

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http://www.351c.info