I am sorry, I did a lot of searches on the net, but I still can't find what I'm looking for. I have a small journal 327 with a strange looking oil pan. It has a longer sump with sort of a step in it that looks to be factory. The engine pad on the front is stamped with TO512HOR. I can't figure out what it originally came out of. I did figure out it was made at the Towanda plant in May on the 12th. Can you help me out, it's not important what it came out of, I'm just curious. Thank you for any help, Josh.
From your description, that might be a Corvette oil pan. 'Vettes had more oil capacity and hence, different sumps to their oil pans. I don't have my books with me to decode your pad.
This is all I could find, but the "R" at the end is throwing me off. <table border="1" width="100%"><tbody><tr><td>HO </td> <td>1965</td><td>327 </td><td>Powerglide </td><td> </td><td>300 </td><td>4 </td><td>Vette</td></tr></tbody></table>
Yeah, that's what I keep finding too. I might need to go back and check it again. The R is screwing it up. Maybe I should just grind that letter off, and brag about my "Vette motor, 327".
I also looked in an old Chiltons that covers 1964-71 and it has "HO" as being in a Vette from 65-67 with a powerglide. Still no "R". Maybe the "R" is for "replacement" engine....I don't know? And your welcome, glad I could help.
I have heard though havent been able to verify it yet that some vette motors had an additional code stamped at the end of the suffix code. I've had one that had a extra "H" on the end and was told it was for "factory Holley equipped" I wonder if the "R" was meant as a designation for "Rochester" for an early fuel injected vette
Since that car had a p/g in it I wonder if it had power steering as well. I think the p/s cars had a different looking pan on them as well. Dennis
HOR? Usually, a THREE letter suffix is from 1970 and up in the Chevy camp. Oh, I agree it's prolly a Corvette oil pan.
I did just see one site from Google that showed a couple 3 letter suffix codes for mid 60's 327 (I never saw before, and have my doubts.), but no HOR
Ive been checking some more too Ive found a few times 1966 327 that had an "H" or a "R" added to the end of the code. I personally have owned one in the past. I just looked up the numbers on it( the one I had) T0620HCH casting number 3858180 the only codes like this I can find are HAH and HAR or HCH and HCRthough no HO codes with the 3rd H or R are you sure its not a C or maybe its a mistamped "C" Heres a link that shows the 1966 codes http://www.chevy-camaro.com/chevy-camaro-chevy-engine-suffix-codes.asp?group=4
HCR, that might make more sense. I didn't see where is said what kind of car it came out of. I'll get another look see on it. I had it scraped off and was using a flashlight......I still could have screwed it up. Thank you for the help guys, I appoligize if I screwed up and had the wrong code.
I get.. If it's HC.....1969 camaro 350 2bbl. HC......1965-68 chevrolet 327 P/G HC....1969 nova 350 2bbl HC.....1969 chevelle- monte carlo 350 2bbl Nothing in corvette.
If it's HO...corvette 327 P/G 1965-67 HO...corvette 327 turbo hydro 1968 Don't know about the R. Lots of the turbo hydro designations seemed to have an R on the ends though. Lippy
Yea, you guys are correct. T = Assembly Plant O5 = Assembly Month 12 = Assembly Day HOR = Engine Suffix code Finally for that "R". My "Chevrolet by the numbers" book says on page 40 "Some engine suffix codes have an extra letter to designate the carburetor application: H for Holley, and R for Rochester...."
better come up with a year date code. the only 3 letter codes i have found were for 70 and later blocks. corvettes did not use rochester carbs till 68. 65 used holly and carter. 66-67 holly only.
I think the best way to get year is the engine block casting number and not the engine code. I would be happy to look that up if you have it.
I'll get the block # the next time I get over to where the motor is stored. I just thought I could see what it is out of by the engine pad stamp. I guess not. It is a small journal 327 and it has the road draft type set-up.
until mac762 can get to his motor we have: 1) 1965 327 250 hp out of a powerglide corvette 2) 1966 327 300 hp out of a powerglide corvette 3) 1967 327 300 hp out of a powerglide corvette 4) 1968 327 300 hp out of a Turbohydramatic corvette I believe Bob308 is correct about the carb so with that If I were a betting man I would say it has "3914678" cast into the side and it came out of a 1968 300 hp automatic vette. In 1969 I believe you could not get a 327 anymore in a vette.
Seems like I read somewere the vette motors were made in Flint. But don't know when that stopped. Ron
I am by no means and expert, I am learning about this stuff myself But from doing a little more reading that #3914678, the casting that I believe this block to be. It was used on Passenger, chevelle, Chevy II, Camaro, and vette engines from 302, 327 as well as 350. It says it was NOT used on the 307 but other than that this casting was used on all small block engines in the 1968 model year. I would guess quite a few plants made this motor in 68. Here are the plant codes for 68: F = Flint Motor Facility K = McKinnon Industries S = Saginaw Service T = Tonawanda Engine Plant V = Flint Engine Plant Another mystery to me, and what makes me curious about the casting is that we should have a vin stamped on the pad for a vette in 68.?
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