[DeTomaso] 428 tunnel port

[Mark]

I've toyed with buying Dove products off and on over the years.  The reports 
I get have been similar, lots of casting problems.  Also seems to take a 
life-time to get an order after you pay for it.  I try to avoid those kinds 
of frustrations.  That said, they've been around a number of years...


----- Original Message ----- 
From: <wkooiman at earthlink.net>
To: "Thomas Borcich" <tborcich at msn.com>; "Pantera REALBIG forum" 
<detomaso at realbig.com>
Sent: Tuesday, January 13, 2009 12:11 AM
Subject: Re: [DeTomaso] 428 tunnel port


> Actually, it's a 427 TP.  The valves are supposed to be too large for a 
> 428 bore (4.13).  I don't have any first hand knowledge, so I can only 
> quote what I read.
>
> I've always wanted a 427TP.  They are supposed to be streetable in a light 
> car - like a Cobra.
>
> You can find them on ebay about 4 or 5 times a year, but they're nearly 
> always damaged - usually cracks, but sometimes dings from dropped valves.
>
> Dove makes reproductions, with the normal Dove issues.  They just made a 
> bunch of 427 SOHC parts, including the heads.  They brought in some 
> foundry experts to fix their casting issues - porosity/etc.  It was 
> documented on the FE forum (network54).  If I recall correctly, they were 
> pouring the aluminum too hot, plus they were using the wrong adhesive in 
> the castings, so when they poured the aluminum, part of the adhesive would 
> melt into the castings - which would cause porosity problems.
>
> At any rate, maybe they made the same changes with their other castings, 
> so maybe, just maybe their porosity problems are behind them.  It would be 
> pretty cool to get a set of aluminum 427TP heads of the same quality as 
> Edelbrock heads.
>
>
> -----Original Message-----
>>From: Thomas Borcich <tborcich at msn.com>
>>Sent: Jan 13, 2009 12:49 AM
>>To: Pantera REALBIG forum <detomaso at realbig.com>
>>Subject: [DeTomaso] 428 tunnel port
>>
>>
>>Today I was at a machine shop dropping off my new quenched heads for 
>>magnaflux and inspection
>>and was shown a super rare 428 Tunnel Port head. HOLLY CRIMANY those ports 
>>were as big as a
>>small fist. Very interesting port shape, round on the top and sides and 
>>then somewhat flat on the bottom.
>>I thought the 351C ports were big, these looked to be 20% maybe 30% 
>>bigger. The machine shop
>>owner keeps them in his office and said it would cost him $6K to replace 
>>them if they were accidentally
>>swapped for another set of heads.
>>
>>
>>Tom Borcich
>>
>>
>>
>>
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