What is?

[67 GT350]

What is the valve lash spec for a 289 HiPo? I assume that my engine is stock with a HiPo cam. Just want to check and adjust.

[The Going Thing]

.022 is the valve lash cold. ( Sayeth so Ford) on the C30Z  6250 C   Camshaft for the 271 HP 289.

[The Going Thing]

If you wanted to know more about the OE cam here are the specs:


Duration 310 Degrees, Lift 0.477", Overlap 82 Degrees
Intake: 0.477" Lift with 0.022" Valve Lash with 1.6:1 Rocker Arms
Intake Opens 25 Degrees BTDC and Closes 70 Degrees ABDC, 275 Degrees Duration
Exhaust: 0.477" Lift with 0.022" Valve Lash with 1.6:1 Rocker Arms
Exhaust Opens 73 Degrees BBDC and Closes 22 Degrees ATDC, 275 Degrees Duration
Lobe Centers is 114 Degrees

[shelbydoug]

That is the accepted cam BUT I show another listing IN ADDITION. Don't make me look it up. I'm using that book to hold up a table leg and all the water will spill.

[The Going Thing]

I thought you used that book so you could see over the dashboard in the car, Doug?  LOL

I pulled the factory Ford Service Manual for 1967.  I have an original, not a reprint. I would assume Ford got it right?
I know some people set them differently than suggested by Ford.
I think you may want to confer with your little black book as well Doug, Perhaps there's a racer's trick.
I don't do small block anymore.

[rmarble57]

Straight out of the '1967 Shelby GT350/500 Owners Manual..020 Hot

[The Going Thing]

I'd trust the service manual before the owner's manual. I have an original in my glovebox in the car, but didn't look at it.   Is your manual an original or reprint?

[shelbydoug]

I thought you used that book so you could see over the dashboard in the car, Doug?  LOL

I pulled the factory Ford Service Manual for 1967.  I have an original, not a reprint. I would assume Ford got it right?
I know some people set them differently than suggested by Ford.
I think you may want to confer with your little black book as well Doug, Perhaps there's a racer's trick.
I don't do small block anymore.

According to the Ford Pereformance Guide, there is another 1963 version. Maybe Randy can clear this up? I'm pretty sure that it did not have a special engineering number on it and perhaps it's the 260hp cam that Ford supplied for the first Cobras?

I sit on an old wooden milk crate.

[roddster]

 I just did this.  Its like 0.019/0.021 intake/exhaust.

[Bob Gaines]

I'd trust the service manual before the owner's manual. I have an original in my glovebox in the car, but didn't look at it.   Is your manual an original or reprint?

Randy may not be aware so I will answer for him. The picture manual is one of several versions of the original owners manual . It is not a repro . One way he can tell is by the cover picture.

[rmarble57]

To the best of my knowledge, the owners manual that I supplied the picture of is the one that came with my car.  The car's Shelby VIN is handwritten in the lower left hand corner, the "500" is magic markered over and the GT350 specs inside are highlighted in orange.

[rmarble57]

Better Pictures, oriented in the right direction.
So, since we are on the subject of Manuals.
The reproduction manuals that I see for sale are in color where mine is either black and white or it has completely lost its' original color over time.   Thoughts?
Also, shows where an owner made a correction from 2.89:1 gears to 3.89:1.
And, one of my favorite parts is the curb weight comparison between GT350 and GT500 of 563 lbs.   
Listed GT350 at 2,723 lbs and the GT500 at 3,286

[Bob Gaines]

Better Pictures, oriented in the right direction.
So, since we are on the subject of Manuals.
The reproduction manuals that I see for sale are in color where mine is either black and white or it has completely lost its' original color over time.   Thoughts?
Also, shows where an owner made a correction from 2.89:1 gears to 3.89:1.
And, one of my favorite parts is the curb weight comparison between GT350 and GT500 of 563 lbs.   
Listed GT350 at 2,723 lbs and the GT500 at 3,286

My thought is to start a stand alone thread so others can benefit using the search feature later or even in the present. No one would think to get owners manual info from a thread title what is? 

[rmarble57]

Roger that.

[The Going Thing]

I was curious. Not that it should have any bearing on the information inside.  I used the 1967 vehcile service manual for information. I tend to trust them more than an owner's manual.
However, .001 or .002 isn't going to be critical so either setting works.