Ford 289 Valves for /6 - what a deal!

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csheehy

csheehy

^Yup, that's me
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Early Ford 289 valves (look up 1965) are just the right size for a size-up valve replacement, and Star Performance is selling Elgin I-1670B (1.780") & E-1669B (1.453") valves for $3.70 & $3.62 per-pair. Google those part numbers - this is a deal!

The suffix "B" in the part number indicates a boxed-set of two - be certain to order using these numbers. The length is comparable; but may require slight massaging to work. My full set cost $32, with shipping.

Not sure how long this pricing will last... mine are due to arrive Thursday :)
 
csheehy said:
Early Ford 289 valves (look up 1965) are just the right size for a size-up valve replacement, and Star Performance is selling Elgin I-1670B (1.780") & E-1669B (1.453") valves for $3.70 & $3.62 per-pair. Google those part numbers - this is a deal!

The suffix "B" in the part number indicates a boxed-set of two - be certain to order using these numbers. The length is comparable; but may require slight massaging to work. My full set cost $32, with shipping.

Not sure how long this pricing will last... mine are due to arrive Thursday :)
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Well, that puts you replacing valve guides, even if they happen to be good, so there's an added expense. I've done it both ways and prefer the 318 valves. If you're putting bigger valves in a slant six, you'r probably putting in a bigger cam. That means more spring. The slant six ain't gotta lotta spring room for much over .500 AT ALL. That's why I like the 318 valves, plus if your guides happen to be good, there's no need for new ones. Keep us posted on how it works out.
 
here is early Ford exhaust valve specs: Melling V0742
Coated Finish Yes
Grade Type Regular
Length 4.867 in.
Length 123.6218 mm
Lock Groove Quantity 1
Locks Included No
Material High Alloy Steel
Oversized No
Seat Angle 44.0 degrees
Stem Diameter .341 in.
Stem Diameter 8.660 mm
Title Engine Exhaust Valve
Valve Head Diameter 1.450 in.
Valve Head Diameter 36.830 mm
 
@RustyRatRod going with the OG #346 cam and thinking of using THESE springs (still need final measurements, but it's leaning in this direction). The #346 calls for 300#, these are 284# - the spring pressure reduction is inline with one of the benefits of using this type of spring.

@pishta - thank you for that.

I'm here to learn, not feed my ego - feedback is welcome.
 
csheehy said:
@RustyRatRod going with the OG #346 cam and thinking of using THESE springs (still need final measurements, but it's leaning in this direction). The #346 calls for 300#, these are 284# - the spring pressure reduction is inline with one of the benefits of using this type of spring.

@pishta - thank you for that.

I'm here to learn, not feed my ego - feedback is welcome.
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I can't get the Oregon sit to come up right now. What's the lift on that camshaft grind? You need to choose a spring based on seat pressure mostly.
 
RustyRatRod said:
I can't get the Oregon sit to come up right now. What's the lift on that camshaft grind? You need to choose a spring based on seat pressure mostly.
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HERE'S a convo on the cam... but not to make it difficult, .476(I) & .479(E). TY for the conversations - much appreciated.
 
csheehy said:
HERE'S a convo on the cam... but not to make it difficult, .476(I) & .479(E). TY for the conversations - much appreciated.
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Put the Comp 901 spring on that and call it a day.
 
Yeah, but I'm looking to reduce inertia power-loss. Matching this springs with lighter valves, Wiseco pistons, Ferrera lifters (65 grams each), and tool-steel retainers will get me what I'm after. When looking at each part individually, it's overkill for my engine, but the cumulative effect of the parts is what I'm after. Not as much in HP/Tq as a free(er) spinning engine with less operational load. Not a common approach for a slant, but it's my direction.
 
ford guides size 11/32 mopar are 3/8 you would be replaceing guides
 
csheehy said:
Early Ford 289 valves (look up 1965) are just the right size for a size-up valve replacement, and Star Performance is selling Elgin I-1670B (1.780") & E-1669B (1.453") valves for $3.70 & $3.62 per-pair. Google those part numbers - this is a deal!

The suffix "B" in the part number indicates a boxed-set of two - be certain to order using these numbers. The length is comparable; but may require slight massaging to work. My full set cost $32, with shipping.

Not sure how long this pricing will last... mine are due to arrive Thursday :)
Click to expand...
That is a nice price, thanks for sharing the information.
And I know that you are looking at springs, but I have found it best to have the valves in hand when the head seat work is done, then get the retainers and measure the installed height (valve closed) and from that subtract the lift at the valve and get the valve open spring height then go valve spring shopping to get the seat pressures that match up with cam.
To fine tune it you can get keepers with off set groves that move the retainer about .020
 
csheehy said:
Yes, I intend on replacing the guides.
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Then it's really no big deal. Some say the smaller stems help increase flow. I've no doubt you could see it on a flow bench.
 
my68barracuda said:
That is a nice price, thanks for sharing the information.
And I know that you are looking at springs, but I have found it best to have the valves in hand when the head seat work is done, then get the retainers and measure the installed height (valve closed) and from that subtract the lift at the valve and get the valve open spring height then go valve spring shopping to get the seat pressures that match up with cam.
To fine tune it you can get keepers with off set groves that move the retainer about .020
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John- you're exactly on the mark as usual. This is why I have the valves in hand (on Thursday) and am still quibbling about the springs. I like to be prepared. Measure, then order. Gotcha!
 
I can tell you there's no way in hell I'd run a spring with 300 pounds open on a 50 year old flat tappet grind. I don't know where that came from. Did Ken Heard tell you that? I'd have a difficult time believing that. Where did you come up with that?

300 open on .479 lift? Seems a bit much.
 
Rob, OCG said that - maybe Ken - not sure, I don't have a relationship there to know. Seemed high to me too, what do you think of my 280# beehive plan? Keeping in mind inertia losses at the top & bottom of the stroke will also be reduced with lighter lifters & valves.

BTW, Reher Morrison did a rather large flow study in relationship to valve stem diameter and concluded it doesn't make all that much difference. But the loss in weight/mass made the change worth it (usually). I'm doing it for the latter.

Thanks for all the feedback!
 
csheehy said:
Rob, OCG said that - maybe Ken - not sure, I don't have a relationship there to know. Seemed high to me too, what do you think of my 280# beehive plan? Keeping in mind inertia losses at the top & bottom of the stroke will also be reduced with lighter lifters & valves.

BTW, Reher Morrison did a rather large flow study in relationship to valve stem diameter and concluded it doesn't make all that much difference. But the loss in weight/mass made the change worth it (usually). I'm doing it for the latter.

Thanks for all the feedback!
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I would roll with the Comp 901 if it was mine.
 
csheehy said:
The 901 runs 353# open - I think that's a bit high for me. I want to run as light as I could while still keeping the lifter on the lobe and the valve in control.
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No it doesn't. Where are you comin up with this? The 901 is 242 open.
 
csheehy said:
I suspect something is wrong - certainly could be me (a safe bet on any given day), but it's on their site HERE and HERE at 330#. Is this a different spring than what you were referring?
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Again, that's the spring rate, not open pressure. They cannot give you an open pressure. How can they? They don't know what lift cam you're going to run. All they can do is give an approximate open pressure, which they do at .500 lift and for the 901 it's 242.
 
RustyRatRod said:
Again, that's the spring rate, not open pressure. They cannot give you an open pressure. How can they? They don't know what lift cam you're going to run. All they can do is give an approximate open pressure, which they do at .500 lift and for the 901 it's 242.
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I stand corrected - and have some reading to do. Thanks for sending the link!
 
csheehy said:
I stand corrected - and have some reading to do. Thanks for sending the link!
Click to expand...
Comp lists all off their springs in order by "preferred" installed height in the catalog, then lists the specs at each incremental lift, You can easily see what seat loads You'll have at diff installs & the over-the-nose by dropping down the amount of lift from there.
 
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