6 cyl id please

[beautimus]

Can you help me id this 6 cyl?
on the block the only letters stamped in as opposed to cast in, are these
FO626PP
these were found on the flat machined surface just behind the distributor .
i assumed these would be the numbers to go by, but if other numbers are needed let me know which and where. thanks Tony

[68gmsee]

Number should be on the side of then engine block.

Here's some info.

http://67-72chevytrucks.com/vboard/s...d.php?t=356268

http://www.adchevy.com/tools/

[bruceman1968]

Tony, any chance the last letter is a F instead of a P
As in F0626PF

[68gmsee]

One more..

location of number

[beautimus]

nope not "pf" but "pp" at the end.

the casting number (cast in) says 3921968 like yours but the number under the "gm" is 55 on mine instead of 45 like yours. the chart that you referrred me to says that its a 230 or 250 up to a 1976 model i think.
we need a way to interpret the stamped numbers that tell what the motor originated in. those numbers should give you year, model of vehicle it came from, type of transmission etc. and thats what i was hoping for.
I can tell its a late non integrated head because it has the tubes for smog stuff in the exhaust ports. Thats a good thing because it should have the hardened valve seats for unleaded fuel. but thats all i can say for sure at this point.

[bruceman1968]

Yes we do need to interpret the stamped number, but suffix code PP comes out to
PP 1965 283 195hp 2bbl Powerglide, a/c
which is not a 6 cyl

[bruceman1968]

casting number 3821968 is a chevy or olds 230 or 250 From 1964 to 1976
I'm still lookin for a PP for I6's
Also suffix codes with 2 digits are 69 or older.
The F is Flint
0626 is June 26

[beautimus]

bruceman, yup it is fo626pp i triple checked, the numbers are plain as day, and its definatly not a small block. about those letters:

the v-8 chart and the six cyl chart should use some of the same charectors. Its been a lot and i mean A LOT of years, but i think i remember seeing in an old chilton book, separate charts for the sixes, one for small blocks, and one for big blocks. If i am not mistaken the type of motor you were looking at had to be taken into acount. But i am trying to work from a faulty memory here, and that old chilton manual is long gone. I think that book covered 1958 to 1972 chevy engines or there abouts.

[bruceman1968]

Your right about all that. 6 cyl info is harder to find that v8 stuff that's why I'm still checkin. I'm sure you got the right code. It's takin longer to find it, but we will. that info is out there some where.

[bruceman1968]

Tony, Well 3 hours of searching and I can't find it. (I did find a FF suffix code for a 1965 230, but I believe you that it's a PP suffix code). There is a book out there that will have it in it. I've been wanting that book for a while now and this is a good excuse to order it. Which I did and it will be here with in a week. When it gets here I will look up the PP suffix code and get back to you. Sorry I couldn't help sooner. Bruce
PS. this is the book I ordered.

[uno67]

1969 truck 250cid w/manual trans, emission controls

[bruceman1968]

Tony, I see uno67 got you the correct info. The MSA-1 book got here today and all I can add is 155HP, 4sp. HD clutch, RPO code L22, 10,20,30 C,K,P,

[PanelDeland]

Hey Bruceman,would you mind posting the "ISBN" for that book?It looks like good reference material for the 6 cyl.

[bruceman1968]

Originally Posted by PanelDeland

Hey Bruceman,would you mind posting the "ISBN" for that book?It looks like good reference material for the 6 cyl.

I can't find the number on the book. The book is smaller than my hand and fits neatly in my shirt pocket. It is perfect for taking into the field or swapmeet to see what you have before you buy it.
It's 126 pages, has suffix codes, prefix codes and casting numbers, for 6cyl chevys from 1929 to 1989.
It's written by Mark s. Allen. says MSA-1 on the back cover. I ordered it from amazon, and I just ordered the small block and big block ones also. It does seem like a good usable reference tool.
Here is MSA-1 website. The book is number 2131 http://www.msa-1.com/catalogs/custom...&&cat=&sc=7726

[Dano69c10]

So what you're saying is this is the actual size of the book?

[bruceman1968]

Dano, That pic is larger than the book. The book measures 5 1/4 tall, 4 1/4 wide, and 3/8 thick. It's for taking with you as a handy reference. Here is a shot of the page I found code PP on.

['68OrangeSunshine]

Bruceman-- Can you look up XAE? my original engine block in a '68 C/10 stepside is stamped F0627XAE. I get Flint Mich. on June 27th, but could never find XAE listed anywhere. Thanks.

[bruceman1968]

Brian, Sorry, I can't find that suffix code either. The truck suffix codes for a 1968 truck are all 2 digits. 1969 are 2 digits also. 1970 starts 3 digits codes and XAE isn't listed anywhere (up to 1989). I also checked the usual websites and still can't find it. 1968 truck 292 suffix codes range fron UA to UY. Do you have the block casting number, might be some info there.

[Dano69c10]

Originally Posted by bruceman1968

Dano, That pic is larger than the book. The book measures 5 1/4 tall, 4 1/4 wide, and 3/8 thick. It's for taking with you as a handy reference. Here is a shot of the page I found code PP on.
Attachment 760790

Man that sounds like a good resource to carry around at junkyards and swapmeets, I guess it's a matter of time before someone enters all of that info into a phone app
.

['68OrangeSunshine]

Originally Posted by bruceman1968

Brian, Sorry, I can't find that suffix code either. The truck suffix codes for a 1968 truck are all 2 digits. 1969 are 2 digits also. 1970 starts 3 digits codes and XAE isn't listed anywhere (up to 1989). I also checked the usual websites and still can't find it. 1968 truck 292 suffix codes range fron UA to UY. Do you have the block casting number, might be some info there.

Thanks for looking it up. If I didn't know that was the original block when I bought the truck from the 2nd or 3rd owner in 1973, I'd think it was a later engine. In 1977, I pulled F0627XAE, disassembled it and stored the parts in some foam-lined AV8A avionics crates. I rebuilt a '67 292, F0626UH, and ran that until it died in 2002, after 250,000 miles. We started a rebuild on the '68 block "XAE" and finished in Jan 2005. Its now back in the C/10 Stepside rig and humming proudly.
Possibly the P.O. mentioned getting a replacement-under-warranty from the dealer when the first 292 lunched, but I was sort of overwhelmed with info on the day I test drove the truck, prior to buying it, so I'm not sure if he really said that. I lost track of the guy shortly after I got the truck.
Still a mystery.

['68OrangeSunshine]

Originally Posted by bruceman1968

Brian, Sorry, I can't find that suffix code either. The truck suffix codes for a 1968 truck are all 2 digits. 1969 are 2 digits also. 1970 starts 3 digits codes and XAE isn't listed anywhere (up to 1989). I also checked the usual websites and still can't find it. 1968 truck 292 suffix codes range fron UA to UY. Do you have the block casting number, might be some info there.

Bruce-- Block casting numbers:
F0626UH--CON2 F227 3921970
GM

F0627XAE --CON2 [?*]258 3921970
GM
[* Couldn't read a letter behind the dipstick shaft. Also a wierd symbol, maybe a "shift clock"]

[bruceman1968]

Brian, The casting number 3921970 covers 1963 to 1972, 292ci 125HP, 165HP, or 175HP truck with 7 main caps.
F227 is the date code for june 22, 1967
in 67 UH is 292, 170HP manual trans, 1carb, 1bbl, 10,20,30 C or K truck

?258 is ? is month, 25 is the day, and 8 is 1968 the year, so your XAE block is a 1968, But I still can't find the XAE code. Atleast we know that the block was made in 1968, and it's a 292.

Do you have your protectoplate or build sheet for your XAE truck? If you do the engine stamp number with suffix code will be on there.

Con2 is conveyor number 2

['68OrangeSunshine]

I did find the build sheet in pieces inside the passenger door. I put the puzzle up in an envelope and put it in a desk drawer. That was years ago. I'll dig for it.
I did find that Felix Chevrolet, in downtown L.A. originally sold the truck. "Z" in the VIN means it came off the Fremont, Calif. line.
F227 means they cast the block on June 22nd and F 0626 means they dressed the block in Flint Mich. on the 26th. That's just 4 days! I bet it hadn't even cooled down. Man that's production!

[bruceman1968]

yes it is! Check out your XAE block. If the ? is june then they cast and dressed it in TWO days!!!! I was courious about the protectoplate/ buildsheet to see if the XAE was original or maybe a 1968 replacement block. Replacement blocks for CARS are stamped CE. But I don't know about the trucks.

['68OrangeSunshine]

I'll try some silly putty behind the dipstick. LOL. Or maybe an inspection mirror. If only the digital camera had a 30 shutter delay like my old 35mm Canon SLR. I could hold it in a close up and see around the dipstick.
June is F?
No clue what I did with the build sheet shards. SPID lists an L25 292.

[OK, I used some warm wax and did an impression. It was an F.]