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Author
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Topic: Ford Motorsport 351 Tunnelport
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SteveLaRiviere
Administrator Posts: 45869
From: Saco, Maine
Registered: May 99
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posted 03-29-2002 05:58 PM
   
Have you seen this setup before?  http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1816784922 ------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
MCA Member # 47773
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Moneymaker
Administrator Posts: 27499
From: Lyons, IL, USA
Registered: May 99
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posted 03-29-2002 06:07 PM
Never seen one before, just heard about them.  ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
US Class Nationals link
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SteveLaRiviere
Administrator Posts: 45869
From: Saco, Maine
Registered: May 99
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posted 03-29-2002 06:13 PM
The guy that's selling this lives near me. I don't know where he keeps finding this stuff.I bought a pair of 351C heads from him once and I couldn't believe the stuff in his garage. ------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
MCA Member # 47773
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Daniel Jones
Gearhead Posts: 898
From: St. Louis, MO
Registered: Aug 99
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posted 03-29-2002 06:32 PM
Yes. A guy had a bunch of them at the big Columbus Ohio all-Ford swap
several years back. They were in the SVO catalog one year and had an
SVO p.n (-T351) but I don't think they were ever made legal for racing
class they were desined for. The SVO catalog is at home but as I recall
everything about them is custom and there was a long list of custom parts
(rockershaft, valves, pushrods, pistons, etc.) that's required to use
them. Don't qoute me but I thik there may have even been a special
part number for a tunnel port block (different location of the lifters
and pushrods to match the heads). Things like this make me believe class racing rules have stunted the
development of pushrod engines. If you design something that works
too well it gets outlawed and never sees the light of day. Dan Jones Dan Jones
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V8 Thumper
Gearhead Posts: 4681
From: Phoenix, Arizona
Registered: Dec 2001
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posted 03-29-2002 08:46 PM
I just checked out the ebay link... what's the purpose of 'split' intake ports? Is it to promote swirl? They're far different from the old FE tunnelports, with pushrods running through ports big enough to stick your left leg into 
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kid vishus
Gearhead Posts: 6590
From: middle of NC
Registered: Oct 2000
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posted 03-29-2002 08:55 PM
The intake with that port layout almost looks like a chevy intake I just wonder how well it really worked. I mean, even chevy went to spread intake ports like a Ford has for their NASCAR stuff.
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Rustang
Gearhead Posts: 821
From: Clarion PA
Registered: Nov 2000
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posted 03-29-2002 10:17 PM
I saw those heads at Columbus too (and in the motorsport catalog). The guy claimed the one set was off of a car ran by Dick Trickle in ASA or ARCA or something. I think the heads were an attempt to have the intake ports more even in length. Supposedly that was an advantage with a single 4 barrel intake. However, the fact that Chevy now has a ford intake layout I'm kinda confused about the whole thing!  ------------------
'68 mustang 351 clevor- 10.92@124
'67 Stang, 351W -11.18@118
'69 351C Torino-14.90@100
'78 Pickup 351W-15.56@88
'79 Pickup 460 ET=??
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bluestreek
Gearhead Posts: 1724
From: Athens,GA
Registered: Jul 2001
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posted 03-29-2002 11:49 PM
This was actually a good balance between the Ford and chevy port layout and does require "special" individual parts. Because of chevys protests, they were not allowed. BS
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Mpcoluv
Gearhead Posts: 1341
From: Charlotte NC usa
Registered: Apr 2001
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posted 03-30-2002 08:46 AM
RDI north of Charlotte used to have several sets of heads and intakes for sale. Probably still do.
They require special Jessel rockers also.
Dick Trickle won a Daytona or Talledega Arca race driving a car for Junior Johnson with a set of those heads. That the only time I have ever heard of them being used.
Supposidly developed my Johnson's team....
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Dusty Kiser
Gearhead Posts: 184
From: Bethel,Oh USA
Registered: Mar 2002
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posted 03-30-2002 08:19 PM
quote:
Originally posted by V8 Thumper:
I just checked out the ebay link... what's the purpose of 'split' intake ports? Is it to promote swirl? They're far different from the old FE tunnelports, with pushrods running through ports big enough to stick your left leg into
I think you need to keep in mind that all these specialty pieces are cast with unfinished ports with plenty of room for custom porting. Can you imagine a Nascar engine builder using heads as cast?
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Daniel Jones
Gearhead Posts: 898
From: St. Louis, MO
Registered: Aug 99
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posted 03-31-2002 03:08 PM
>Supposidly developed my Johnson's team.... Wow, your Johnson has a team? Mine's had a cheerleader but that's it :-) Dan Jones
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67Coupster
Gearhead Posts: 189
From: Fortson, GA, USA
Registered: Oct 2001
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posted 03-31-2002 05:56 PM
quote:
Originally posted by Daniel Jones:
>Supposidly developed my Johnson's team.... Wow, your Johnson has a team? Mine's had a cheerleader but that's it :-) Dan Jones
That's just too funny! ------------------
James
67 Coupe
393W, AFR 185, 4 Speed, 4.11 9 inch
7.09 @ 97MPH 1/8
1.55 60'
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Mpcoluv
Gearhead Posts: 1341
From: Charlotte NC usa
Registered: Apr 2001
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posted 03-31-2002 06:46 PM
quote:
Originally posted by Daniel Jones:
>Supposidly developed my Johnson's team.... Wow, your Johnson has a team? Mine's had a cheerleader but that's it :-) Dan Jones
Now that I'm married, the team vanished.
No cheerleaders, nothing.... 
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TomP
Gearhead Posts: 6120
From: Delta BC Canada
Registered: Dec 99
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posted 04-01-2002 03:40 AM
hmmm, i recall them in to old SVO catalog, bout the same time Yates heads came out. Makes the Ford engine look more like a 455 Buick i think.
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HIGH-RISER
Journeyman Posts: 31
From:
Registered: Apr 2002
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posted 04-01-2002 12:16 PM
This set up was used in ARCA by my friend Jack Bowsher. It was the fastest car on the track until it suffered valve trouble due to the extra heat incurred by the design.
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