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Author
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Topic: 302 tunnel port
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albark
Journeyman Posts: 12
From: dayton,Oh
Registered: Sep 2000
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posted 09-24-2000 12:54 AM
   
What is this engine I can find no reference to it. Can one be built from a 302 boss/351 cleveland? see my add in classic stangs (66 hipo) thanks.
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SteveLaRiviere
Big Kahuna Posts: 10277
From: Saco, ME USA MCA # 47773
Registered: May 99
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posted 09-24-2000 03:17 PM
It was an engine Ford developed in '68 for the Trans Am racing series. It was a failure due to lots of valvetrain problems. The pushrods actually went through the intake ports through tubes, hence the name.It was replaced with the Boss 302. ------------------
SteveLaRiviere/Webmaster -- MCA # 47773
'72 Mustang Sprint 351C 4V/FMX/4.30 Trac-Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC/CD4E
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Moneymaker
Big Kahuna Posts: 6299
From: Lyons, IL, USA
Registered: May 99
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posted 09-26-2000 12:24 PM
We did a thread on the engine once albark. It may still be in the archives.  Alex------------------
Alex Denysenko Co-Administrator and Moderator
Fleet of FoMoCo's too long to list!
http://superstockers.homestead.com/week.html
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DidgeyTrucker
Gearhead Posts: 330
From: Nashville, TN USA
Registered: Oct 99
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posted 09-26-2000 03:26 PM
quote:
Originally posted by SteveLaRiviere:
It was a failure due to lots of valvetrain problems.
From what I've read the heads were dogs below about 7000rpm. The motors couldn't run in the narrow power band all day long. From the outside the heads looked like stock 302 heads, but when you removed the intake - BIG intake ports with a tube for the pushrod in the middle. The ports were really too big. ------------------
1956 Panel w/429
(3.70 9" for Saturday night, 2.75 for road trips)
Music City F-100's,
1966 GT-350 S/C
(2.78 1st & 3.70 TracLok 9")
Music City Mustang Club
Don't focus on the destination....make the JOURNEY the adventure
Visit my Web site (the September Web Site of the month!): http://members.nbci.com/didgeytruck
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Moneymaker
Big Kahuna Posts: 6299
From: Lyons, IL, USA
Registered: May 99
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posted 09-26-2000 05:46 PM
The 302 Tunnel Port was a great engine. It just wasn't given any development time or budget. The engineers had to rob as many existing parts as they could. Like 312 "Y" block rocker arms and shafts. It was rushed into production and then faced with the delema of passing the new 1968 emmisions standards with 2 4V carbs. Bunkie Knudson was pitting the Windsor guys against the Cleveland gang. The Cleveland group got more funding for development of their project. Alex------------------
Alex Denysenko Co-Administrator and Moderator
Fleet of FoMoCo's too long to list!
http://superstockers.homestead.com/week.html
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