[DeTomaso] Port matching heads to headers?

[Larry Weston]

I found that a set of the exhaust port tongues revised the shape of my stock 4V head ports to a pretty nice match to the headers. 

Sent from my iPhone

> On Mar 23, 2018, at 11:59 AM, Jeff Detrich <jjdetrich at gmail.com> wrote:
> 
>   Not sure if we have answered his question. "What sort of heads to
>   headers port matching should be done?"
>   Jeff
>   6559
>   On Thu, Mar 22, 2018 at 6:40 PM, Mike Drew via DeTomaso
>   <[1]detomaso at server.detomasolist.com> wrote:
> 
>     Dan,
>     I really like Remflex exhaust gaskets rather than spooging on high
>     temp RTV. It would be very difficult to get a good uniform bead x8
>     with the engine in the car. The Remflex gaskets are unusually
>     tolerant of surface imperfections and because they crush under
>     torque, they seal extremely well.
>     I used to buy them from Remflex direct but now Summit sells them
>     much cheaper and with less-expensive shipping.
>     Mike
>     Sent from my iPad
> 
>   On Mar 22, 2018, at 14:57, Daniel C Jones
>   <[2]daniel.c.jones2 at gmail.com> wrote:
>>> What sort of heads to headers port matching should be done?
>> A  A No need to gasket match.AA  It's best to use high temperature RTV
>   around
>> A  A the ports, without a gasket.AA  Be aware that the ANSA mufflers
>   will
>> A  A cost you 50 HP and upset the idle.AA  What cam are you going to
>   run?
>>> The intake did receive extensive work though
>> A  A That was based upon our flow bench testing of the Blue Thunder
>   dual
>> A  A plane intake which showed 4 good runners and 4 bad runners.A
>> A  A Out-of-the-box, the Blue Thunder made 31 HP less than a Ford dual
>   plane
>> A  A (Holley carb pattern of the Boss 351 aluminum intake) that had
>   it's
>> A  A runners equalized and 46 HP less than an unported Holley Strip
>> A  A Dominator single plane.AA  With the runners equalized, the Blue
>   Thunder
>> A  A and Strip Dominator were very close with the Blue Thunder making
>   a bit
>> A  A more power.
>> A  A Dan Jones
>> 
>> A  A On Thu, Mar 22, 2018 at 3:08 PM, Larry Finch via DeTomaso
>> A  A <[1][3]detomaso at server.detomasolist.com> wrote:
>> 
>> A  A  A All,
>> A  A  A Slowly, much like the repairs to 2511, my engine is being
>   assembled,
>> A  A  A and my engine builder posed a question I do not know how to
>   answer.
>> A  A  A I am using the 4-barrel CHI heads and blue thunder intake, 404
>> A  A  A stroker, GTS tri-y headers.
>> A  A  A Exhaust ports on my heads are not CNC machined but remain as
>   cast.
>> A  A  A Question:
>> A  A  A What sort of heads to headers port matching should be done?
>> A  A  A None? Match to gasket? Or???
>> A  A  A Any wisdom you can provide is appreciated.
>> A  A  A Thanks,
>> A  A  A Larry
>> A  A  A Sent from me using a magic, handheld electronic gizmo.
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