Earlyest 351W
Postmaster
Joined: Jun 2005
Posts: 2,656
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I had no idea any sbf should be installed any other way.
i know the cams were made with sometimes 4* of retard in them or was it the cam gears that had it.
what years were not straight up? and if not how was it installed?
Sorry for the ?s..... I'm confused.....
i know the cams were made with sometimes 4* of retard in them or was it the cam gears that had it.
what years were not straight up? and if not how was it installed?
Sorry for the ?s..... I'm confused.....
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Post Fiend
Joined: Sep 2006
Posts: 14,325
Likes: 14
From: Island Southeast Alaska
Well from what I understand is the late 70's and up were retarded at the gear for emitions. Right? Thats why if ya got an 80's 351w and ya overhaul it ya put in the earlyer gear set. More HP.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
351W introduced into cars in 1969. Econolines got them in 1975, and F series trucks, and Bronco's in 1980.
Last edited by NumberDummy; Feb 26, 2007 at 02:38 AM.
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Junior User
Joined: Apr 2004
Posts: 92
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From: west michigan
I have a '69 in my bronco with the factory 4 barrel. I was told that was a one year only thing and my cast iron manifold is quite rare. Any truth to that?
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Cargo Master
Joined: May 2007
Posts: 2,071
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From: British Columbia
The 4V intake manifold was only offered on the 351W in 1969 and 1970 (not sure about in Mexico, though). It's less common than the 2V but not really rare. They turn up at swap meets regularly. There are also marine/industrial 4V intakes that are identical except for the casting numbers and possibly not having four attaching bolts drilled, although the bosses are cast in.
Then there was also a stock 4V cast iron intake used in the mid 80s on the 351W.
Then there was also a stock 4V cast iron intake used in the mid 80s on the 351W.
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Post Fiend
Joined: Sep 2006
Posts: 14,325
Likes: 14
From: Island Southeast Alaska
Thanks for reminding me Beanscoot. I need ta get the stock iron 4V from my little brother for the boat. Salt air and aluminum don't do well. Although the 2V works well I think I can use less fuel with the 4V the way I run her. I know it don't sound like it makes sense but for some reson it burns less with the 4V. Anybody care to try and explain why?
Senior User
Joined: Oct 2005
Posts: 146
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From: Wichita Falls TX
Actually, the 351W only had the four barrel in 1969. When the
Cleveland was introduced in 1970, it got the four barrel and the 351W
didn't get one again until the HO in the mid eighties. (Although
Pat Ganahl does say in his Ford performance book that some
351W 4 barrel's might have carried over into 1970.) As far as the
earliest 351W, the 1969 models were introduced on September 21
1968, so I would suspect there are a few 1968 date code 351W's.
Cleveland was introduced in 1970, it got the four barrel and the 351W
didn't get one again until the HO in the mid eighties. (Although
Pat Ganahl does say in his Ford performance book that some
351W 4 barrel's might have carried over into 1970.) As far as the
earliest 351W, the 1969 models were introduced on September 21
1968, so I would suspect there are a few 1968 date code 351W's.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Taken verbatum from the 1965/72 Ford passenger car parts catalog:
C90Z-9424-B .. Intake Manifold ~ 351W 4V ~ 1969 Mustang/Torino
C9OZ-9424-E .. Intake Manifold ~ 351W 4V ~ 1969/70 Mustang/Torino High Performance vehicle with 4 barrel carb ALUMINUM HIGH RISER (also used on 1969 GT 350)
C90Z-9424-B .. Intake Manifold ~ 351W 4V ~ 1969 Mustang/Torino
C9OZ-9424-E .. Intake Manifold ~ 351W 4V ~ 1969/70 Mustang/Torino High Performance vehicle with 4 barrel carb ALUMINUM HIGH RISER (also used on 1969 GT 350)