Head comparisons..(FAQ) (1 Viewer)

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Mace

Mace

rock scientist..
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While Dhondagod was at my house over the weekend we were chattin about different heads for 2f's. H recently had a head gasket blow in his early 2F and got a good look at his head.

I knew that I had a later model head sitting around (probably around 87 ish) with a casting number 61040 and 0704. BUt I was looking at Matt.machines motor and noticed that his head is significantly different is combustion chamber design than mine is..

According to Jim, the head casting numbers available for a 2f are:
Heads are 61030 or 61031, open chamber, or
61040, 61070 closed chamber.

Dhondagod is plannin on taking some junk heads and cutting them up to see the differences between the different casting numbers.

I do know that the later head that I have does not "narrow" down in the intake. So it should flow better. And obviously the combustion chambers are different.

I'll take pics of the heads I currently have and give some indication of the differences. Then link to matt's pics.

Does the 3F head have a different combustion chamber than the 2f head?? Pics?
 
I would also like to get some part numbers or application x-refrences for head parts.

Matt is using Ferrea Winsor Valves (what size, stem diameter/length)

The valve locks are apparently Crane cams 99095-1 which refrences
Valve Locks, Machined, Hardened Steel, 7 Degree, 1-Groove, 11/32 in.


So it looks like a 11/32 stem diameter.
Ferra lists these "windsor" valve options
FORD WINDSOR 289 - 302 - 351
F5014 E 1.450 11/32 5.030 .325 12º Under Cut-Dish Head
F5015 E 1.600 11/32 5.030 .325 12º Under Cut-Dish Head
F5038 E 1.625 11/32 5.060 .250 12º Under Cut-Dish Head
F5012 I 1.782 11/32 5.030 .325 10º Under Cut-Dish Head
F5056 I 1.900 11/32 5.030 .325 10º Under Cut-Dish Head
F5018 I 1.940 11/32 5.030 .325 10º Under Cut-Dish Head
F5020 I 2.020 11/32 5.030 .325 10º Under Cut-Dish Head
F5039 I 2.055 11/32 5.060 .250 10º Under Cut-Dish Head


Do you have a seal PN?
 
Mace said:
I would also like to get some part numbers or application x-refrences for head parts.

Matt is using Ferrea Winsor Valves (what size, stem diameter/length)

The valve locks are apparently Crane cams 99095-1 which refrences
Valve Locks, Machined, Hardened Steel, 7 Degree, 1-Groove, 11/32 in.


So it looks like a 11/32 stem diameter.
Ferra lists these "windsor" valve options
FORD WINDSOR 289 - 302 - 351
F5014 E 1.450 11/32 5.030 .325 12º Under Cut-Dish Head
F5015 E 1.600 11/32 5.030 .325 12º Under Cut-Dish Head
F5038 E 1.625 11/32 5.060 .250 12º Under Cut-Dish Head
F5012 I 1.782 11/32 5.030 .325 10º Under Cut-Dish Head
F5056 I 1.900 11/32 5.030 .325 10º Under Cut-Dish Head
F5018 I 1.940 11/32 5.030 .325 10º Under Cut-Dish Head
F5020 I 2.020 11/32 5.030 .325 10º Under Cut-Dish Head
F5039 I 2.055 11/32 5.060 .250 10º Under Cut-Dish Head


Do you have a seal PN?
Click to expand...

If you read my post it on the Engine builders quote:D

1.9 F5047-PHW http://www.ferrea.com/category_search.php?partnumber=F5047&dealer=99 and 1.6 F5046-PHW http://www.ferrea.com/category_search.php?partnumber=F5046&dealer=99

Strange that as they come up as CSB valves though the final bill just lists Ford valves and no part No https://forum.ih8mud.com/showthread.php?t=134529&page=4

Also the pics in my thread are of a 3F-E head if that helps :D the 3F maybe different again.

http://www.ferrea.com/
 
Last edited:
3F heads are the same as the last gen 2F. 3FE heads are unique to the 3FE.


Mark...
 
Mark W said:
3F heads are the same as the last gen 2F. 3FE heads are unique to the 3FE.


Mark...
Click to expand...



Ahhh.. That is where I was confused..
I had not realized that there was a 3fe head..

Interesting..
 
Glad yer using your star ;)


Thanks Jim..

I am looking forward to cutting a profile into a head to see how much benefit can be gained with shaping..
 
FJ40Jim said:
SBC valves:
OAL 4.91"
Stem Dia. .343"

F/2F valves:
OAL 4.91-4.92"
Stem Dia. .314"
Click to expand...
Checking my FSM today for this Chevy valve comparison and find the following data;
Intake Diameter 1.726-1.738
Exhaust Diameter 1.471-1.482
Overall Length
Intake 5.992-6.024
Exhaust 4.752-4.784
Stem Diameter
Intake .3140-.3144
Exhaust .3134-.3140

I'm confused then on the length noted at 4.91. The stem diameter is no big deal, ream and hone the existing unit should be fine. Also the diameter is not a major issue, a little larger seat clean up and any shop that is doing small block chevy's (pretty much all of them) will have the equipment to do the job. The price is great. Toyota valves will run about $225 for the 12, whereas one can buy the Chevy valves, retainers, keepers and springs for $110 all day long. But the overall length concerns me.
 
My bad Jim, I immediately went back to downloads and checked and I had indeed quoted from the FSM titled 1967. When I purchased these downloads two years ago I got quite a bit of stuff, none of which covered drive train. Regardless, I checked the "1948 to 1975 engine manual" FSM and it confirms what you said. That is a relief. Now if Cruiserparts.net would reply (as well as the shipping company) I could start to put together a plan for getting a head down here. Thanks so much for reading and straightening me out.
 
A friend in Wichita brought to my attention that the intake valve length on this link was 4.880, a little short. So I checked the website again and found another, similar, listing. Both valves check good at intake 4.913 and exhaust at 4.923 overall length. The difference is that the intake valve changes from a 1.94 diameter to a 1.84. FJ40 Jim was kind enough to point me at the correct FSM as I was referring to a staggered valve head. The correct manual does not list a diameter for the valves. Does anyone know whether these 1.84 intake and 1.50 exhaust diameters present any problem with re-cutting the seats? One other question regards the valve stem seals. I would "presume" that the larger diameter valve stem might have a larger diameter boss the seal fits over. So what is to be used, a Toyota stem seal or a Chevy stem seal? Thanks.
 
In the Staggered Valve FSM I find the intake valve head diameter listed to a maximum of 1.738 & the exhaust valve 1.482. In another post I see where FJ40 Jim stated that "all F/2F/3F" valves are the same size. So of course I am curious as to whether these numbers apply of if the statement refers to all parallel valve heads. Thanks.
 
Thank you Jim, the "set" that I found in the 1.5/1.84 comes with springs that have a 2.023 free length and the FSM for Toyota says 2.028, perfect. I love it when a plan starts coming together. What about valve stem seals, Chevy or Toyota?
 
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