original engine???

[oldtrux]

hi everyone,new to the forum...great site!i am working on a 66 c10 bbw short fleet and i am wondering if it is the original 283?the truck came with protect o plate and engine code is f1020ta and from what i came up with is it was originally a 6 cylinder.having said that the 283 is period correct and seems right!any comments would be greatly appreciated.thanks folks!dan

[bama63]

try this http://www.mortec.com they have all the info on casting numbers on blocks and heads for all chevy big and small blocks hope this helps

[oldtrux]

thanks bama63!i think the block numbers will only tell you what years the engine is.i am trying to figure out if the protecta plate engine id code is carved in stone!thanks dan.

[aerotruk63]

On a Canadian built truck your Vin# 6C1434 then ? 6 or 8?

[oldtrux]

truck is from tennesee.c1434.thanks dan

[aerotruk63]

OK then what follows C1434?
just the next digit!

[oldtrux]

sorry aerotruck63 i messed up it is c1446a121667.thanks dan

[aerotruk63]

You might try LILRED66, that's the era he like's to play around with. Most of my books are Canadian and mostly 63, Can't find the info your looking for. I'm sorry!

[ljackson]

I have an original 283 in my current truck and a friend had a 327 in his '65

Check out the links in this post. http://67-72chevytrucks.com/vboard/s...d.php?t=395452 I did a bunch of engine ID research on one of my trucks that had a IL6. I finally figured out that I had a mid 70's 250.

[oldtrux]

thanks ljackson i guess my next question would be how do you know your 283 is original?thanks dan

[jocko]

i don't believe there is any way to confirm via the VIN or the engine ID numbers. The engine ID numbers will tell you if it's a 66 engine - but not necessarily if it's original to that truck. If the protecto-plate decodes to a 6, and it "looks" like an original protecto-plate, i'd bet dollars to donuts it was an original 6. Having said that - if you're a buyer that doesn't care if it's original and prefer a V8 - this is really the best of both worlds - a good V8 you know is working that you can use as your starting point - and - a bartering point you can use with the seller to chop the price down maybe (unless he's already said it's not original - and price is firm). Have you spoken to owner yet? Curious what he'd say. If he doesn't know - I'd ask him to knock a bit off the price since you "discovered" it's not original and see if he bites. That is, if you prefer the 283. To me, that's the best starting point (or a 327 in a 66 is a great motor too). Go for it! (I love spending other people's money...)

[jocko]

Originally Posted by jocko

i don't believe there is any way to confirm via the VIN or the engine ID numbers. The engine ID numbers will tell you if it's a 66 engine - but not necessarily if it's original to that truck. If the protecto-plate decodes to a 6, and it "looks" like an original protecto-plate, i'd bet dollars to donuts it was an original 6. Having said that - if you're a buyer that doesn't care if it's original and prefer a V8 - this is really the best of both worlds - a good V8 you know is working that you can use as your starting point - and - a bartering point you can use with the seller to chop the price down maybe (unless he's already said it's not original - and price is firm). Have you spoken to owner yet? Curious what he'd say. If he doesn't know - I'd ask him to knock a bit off the price since you "discovered" it's not original and see if he bites. That is, if you prefer the 283. To me, that's the best starting point (or a 327 in a 66 is a great motor too). Go for it! (I love spending other people's money...)

My bad - YOU are the owner..... disregard the whole "ask the owner" discussion. THis falls under the category of RTFQ jocko....

[oldtrux]

no problem jocko,thanks for the reply.i think you are right it was more than likely a 6.if someone has a 283 with ptrotect o plate i would love to know the engine code.thanks dan.

[jocko]

here's the glovebox ID for mine - not sure if that may help.

[oldtrux]

what year is your truck jocko?

[collins10672]

there is no way that i know of to decode a 6 cylinder or v8 truck from the serial number since it does not have any information about the engine in the serial number in these models.c1446a121667 breaks down as a 1966 c10 short bed 2 wheel drive truck built in atlanta georgia and was the 21,667th truck built at the atlanta plant.the option information on these trucks was very vague in this era.does your truck have the original fan shroud and does it have the upper metal water pipe?if so probably original v8,but that does not really tell you either way for sure since it could have been changed or swapped since 44 years ago.even if it is a correct 1966 truck engine i don't think it can be verified if it came in that particular truck or not.maybe someone else could chime in on this like lilred.

[oldtrux]

thanks for the help!it does not have metal waterpipe it does have a shroud but not sure if its original.i think i have to believe the protect o plate decoding to a 6 cylinder!thanks dan

[aerotruk63]

Does your wiring harness fit correctly to the engine or does it look like it was redone?

[ljackson]

Oldtrux, I guess I am assuming. From the engine numbers, it says that engine was installed from 64-67. Also the previous owner told me that his father in law bought it new and overhauled it once.

[Russ65C10]

Check the back of the seat to see if the build sheet is there. If so you'll know whether the engine is original or not, or at least correct.

[Chionos GMs]

There was a place that ran my vin to tell me my 283 was original! I also got lucky and old owner got all documents and truck only had 80,000 original mile but i sold it
http://www.americanclassic.com/paint_test.asp

[1Bad62Pro/Street]

Originally Posted by oldtrux

hi everyone,new to the forum...great site!i am working on a 66 c10 bbw short fleet and i am wondering if it is the original 283?the truck came with protect o plate and engine code is f1020ta and from what i came up with is it was originally a 6 cylinder.having said that the 283 is period correct and seems right!any comments would be greatly appreciated.thanks folks!dan

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By far the fastest and easiest way to I.D. your small block Chevy is to use the casting number found on the drivers side rear of the block on the top flange that mates with the tranny bell housing.Numbers are raised approx 1/8 of an inch.The are about 3/4 of an inch tall.Even though you may have to scrap greese and dirt away,the numbers may be seen plainly while the engine is still in the car.

The casting date can also be very helpful in identification.Found normally on the top or the right side of the same flange that mates to the transmission bell housing.(Behind & below the distributor).They can also be located on the right side of the block next to a freeze plug.You will either find an alpha-numeric date code cast right into the block between the image of two screws cast into the block,these are from the screws that held the date code plate while the block was being cast.This code I.D.s the month,day,and the year of the casting,note that this does not mean that the casting date was also the model year of the vehicle that rolled out of the factory with said engine.

While there were a pile of minor changes in the last 40 years to the small block Chevy,the basic design has remained the same for the years we are looking at on this site.

The very first small block Chevy,a 265 CID overhead valve v-8,did not even have a provision for an oil filter!The familiar oil filter boss on the small block came around in 56,along with an all new casting.

The debut of the 283 in 1957 marked the end of the 265.Chevrolet went to an new motor mounting system placing the mounts near the freeze plugs on the side of the block.The old system had mounts located on the front of the block at either side of the timing cover.

Since around 1964 most small block Chevys have had two threaded holes at the rear of the block on the drivers side near the oil filter boss.These are to accommodate the clutch counter shaft for vehicles equipt with manual transmissions.Only one of the holes are required.Some vehicles used a counter shaft located approx 6" further to the rear,thus the need for the rear hole.Early blocks have only one hole and are pretty much worthless to a vehicle that require the rear hole for their clutch assemblies.

Before 63,small block Chevy engine used a "Road Draft Tube" to ventilate the crankcase.Featuring a large hole at the top rear of the block inside the lifter valley,these blocks are from the 50's through to the mid 60's.The PCV(positive crankcase ventilation system) replaced the daft tube in 1963.The vent hole disappeared in 68 when the system was redesigned to ventilate through the oil filler tube located at the front of the intake manifold.Later engine ventilated through the valve cover.

In 62 Chevy brought out the Chevy II,or Chevy Deuce.Using an inverted front suspension,the Chevy II had shock towers in the enginebay,which put the steering arms right where an oil pan would go.This little problem was solved for the small block applications (4 and 6 cylinder applications had no problem with this configuration) with a special block with a recessed oil filter boss,and an oil dipstick located on the passenger side.The problem was done away with in 68 with a new chassis and body style.The unique 64-67 blocks are in demand by collectors due to the recessed oil filter boss.

With the debut of the 327 in 62,Chevrolet fans were in heaven.Fitted with its own unique valve cover the featured a flat spot for a decal like "327 Turbo Fire".This design was used until around 1965 and is very popular with collectors today.1956-1967,small block Chevys also used a cartridge type oil filter inside a steel canister,joining other manufacturers in 68 with a spin on style oil filter.There are adapters available to update the older style blocks to the newer style.

Several other changes took place to the small block Chevy in 67.It was the lst year of the 283 and the first year of the 350(Camaro only).It was also the first of three years for the very famous 302 Chevy(283 crank in a 327 block)

1968 was the year that Chevy started making the small blocks with large journal cranks,greatly improving strength and durability to the crank.This also means that small journal (pre 68) cranks do not fit large journal block(post 68)Although this change did not occur until around March or April of 68.(This writer had a Mar 68 327 that was a small journal and has a may 68 327 that is a large journal.)

1968 marked the first year of the 307.The 307 utilized the stroke of a 327 and the bore of a 283.Chevy tried again with an economy small block with the 305,most are now boat anchors to the best of this writers knowledge.

1969 brough with it 4 bolt main bearing caps further strengthening the bottom end of the small block for high performance and heavy duty applications.69 also marked the last year on the 327 as well as the 302.

Growing to it's largest factory displacement of 400 cubic inches in 1970,these block required siamesed cylinders to gain the internal space for the displacement.Extra bolt holes were also drilled into the surface of each deck to promote cooling.It is also noted that for the use of a small block 400,you also need the small block 400 heads.Most of the crankshafts and connecting rods from the small block 400's ended up with a better life as part of a 383 build-up.

Another year of change was 1986.The two piece rear main seal was replaced with a one piece unit.Displacement of the block was also cast into the block next to the casting number.


Here ya go:

Casting CID Year Model Aplication Comments
330817 400 73-76 Passenger 2 bolt main,3 freeze plugs/side
330817 400 75-80 Truck 2 bolt main,3 freeze plugs/side
355909 305 76-79 Truck

355909 305 78-79 Pass,Camaro,Malibu,Monte Carlo,Nova

360851 262 75-76 Monza

361979 305 76-79 Truck

361979 305 76-79 Pass,Camaro,Malibu,Monte Carlo,Nova,Chevelle

366245 350 78-79 Pass,Malibu,Camaro,Nova Dipstick in oil pan
460776 305 76-79 Truck

460776 305 78-79 Pass,Malibu,Camaro,Nova,Monte Carlo

460777 305 78-79 Pass,Malibu,Camaro,Nova,Monte Carlo

460778 305 78-79 Pass,Malibu,Camaro,Nova,Monte Carlo

471511 267 79-82 Malibu,Monte Carlo

3703524 265 55 Corvette 195 HP,no oil filter
3703524 265 55 Passenger No oil Filter provision
3720991 265 56 Corvette with no oil filter
3720991 265 56-57 Truck,Pass with no oil filter
3731548 283 57 Corvette,pass,truck no side motor mounts
3737739 283 58-59 Corvette Early 1959
3737739 283 58-61 Passenger

3756519 283 58-61 Corvette

3756519 283 58-62 Passenger,Truck

3782870 327 62-65 Corvette Sm journal
3782870 327 62-65 Passenger,Chevelle,Truck Sm journal
3789817 327 62-65 Passenger,Chevelle,Truck Sm journal
3789935 283 61 Corvette Late 1961
3789935 283 62-64 Truck

3789935 283 63-64 Passenger,Chevelle

3790721 283 64-65 Chevy II Recessed oil filter boss
3791362 327 65-67 Chevy II/Nova Recessed oil filter boss sm journal
3794226 283 58-62 Truck

3794460 327 68-69 Pass,Chevelle,Camaro,Nova Large journal
3837739 283 58-62 Truck

3849852 283 58-63 Passenger

3849852 283 58-67 Truck

3849852 283 64-67 Passenger,Chevelle

3849935 283 62-67 Passenger,Chevelle

3858174 327 64-67 Passenger,Chevelle,Camaro Sm journal
3858174 327 64-67 Truck Sm journal
3858174 327 66 Corvette 300,350 HP Sm journal
3858174 350 67 Camaro

3858180 327 64-67 Pass,Chevelle,Camaro Sm journal
3858180 327 64-67 Truck Sm journal
3858180 327 65 Corvette

3862194 283 66-67 Chevy II Recessed oil filter boss
3864812 283 63-64 Pass,Chevelle,Truck

3889935 283 63 Truck

3892657 327 64-67 Pass,Chevelle Std & Hi Perf sm journal
3892657 327 64-67 Truck sm journal
3892657 327 66-67 Corvette 300,350 HP sm journal 2 bolt main
3892657 302,327 67 Camaro & z28 sm journal 2 bolt main
3896948 283 65-67 Pass,Chevelle,Truck

3903352 327 64-67 Pass,Chevelle,Camaro sm journal
3914635 307 68-73 Pass,Chevelle,Camro, Nova,Truck

3914636 307 68-73 Pass,Chevelle,Camro, Nova,Truck

3914660 327 68-69 Pass,Chevelle,Camro, Nova,Truck

3914678 302,327,350 68 Camaro,Z28 large journal,2 bolt main
3914678 327 68 Corvette 300,350 HP lrg journal 2 bolt main
3914678 327 68-69 Pass,Chevelle,Camaro, Nova,Truck

3914678 350 68-74 Pass,Chevelle,Camaro, Nova,Monte Carlo

3914678 350 69-76 Truck

3914678 350 78-79 Pass,Malibu,Camaro ,Nova

3932371 307 68-73 Pass,Chjevelle,Camaro, Nova

3932371 307 69-73 Truck

3932373 307 69-73 Pass,Chevelle,Camaro, Nova,Truck

3932386 327 68-69 Pass,Chevelle,Camro, Nova Large Journal
3932386 350 69 Corvette 300,350 HP
3932386 350 69-74 Pass,Chevelle, Camaro,Nova,Monte HI perf,4 bolt main
3932388 350 68-74 Pass,Chevelle, Camaro,Nova,Monte 2 bolt main
3932388 350 69-76 Truck 2 bolt main
3932442 350 67 Camaro

3933180 327 68-69 Pass,Chevelle,Camaro, Nova,Truck Large Jounal
3941174 307 68 Truck

3951509 400 73-76 Passenger 2 bolt main, 2 freeze plugs/side
3951509 400 75-80 Truck 2 bolt main, 2 freeze plugs/side


Casting # CID Year Model Application Comments
3951511 400 70-73 Pass,Chevelle,Monte 4 bolt main, 3 freeze plugs/side
3951511 400 75-80 Truck 4 bolt main, 3 freeze plugs/side
3955618 327 68-69 Pass,Chevelle, Camaro,Nova Large Journal
3955618 302 69 Camaro,Z28 early 69,4 bolt main
3955618 350 69 Corvette 300,350 HP,4 bolt main
3955618 350 69-74 Pass,Chevelle,Camaro,Nova,Monte Carlo

3955618 350 69-76 Truck

3956632 307 69-73 Pass,Chevelle,Camaro,Nova,Truck

3970010 350 69 Corvette late 69,4 bolt main
3970010 302 69 Camaro Z/28,Late 69, 4 bolt main
3970010 350 69-79 Truck 2&4 bolt main
3970010 350 69-79 Pass,Chevelle,Camaro,Nova,Monte Carlo 2&4 bolt main
3970010 350 70 Corvette 300,350,370 HP 4 bolt main
3970010 350 71 Corvette 270,330 HP 4 bolt main
3970010 350 72 Corvette 200,255 HP 4 bolt main
3970014 350 69-77 Pass,Chevelle,Camaro, Nova,Monte Carlo 2 or 4 bolt main
3970014 350 69-79 Truck 2 or 4 bolt main
3970014 350 72 Corvette late '72,200 HP,255 HP 4 bolt main
3970020 307 68-73 Pass,Chevelle,Camro, Nova

3970020 307 69-73 Truck

3970024 307 69-73 Pass,Chevelle,Camro, Nova,Truck

3992386 327 68-69 Pass,Chevelle,Camro, Nova,Truck Large Jounal
14010201 305 80-85 Pass,Malibu,Monte, Camaro,Nova,Truck

14010202 305 80-85 Pass,Malibu,Monte, Camaro,Nova,Truck

14010203 305 80-85 Pass,Malibu,Monte, Camaro,Nova,Truck

14010205 267 80-82 Malibu,Monte Carlo

14010207 350 80-85 Pass,Malibu,Camaro

14010207 350 80-81 Truck Light Duty
14010209 350 80-81 Pass,Malibu,Camaro

14010209 350 80-85 Truck Heavy Duty
14010280 267 80-82 Malibu,Monte Carlo

14016376 267 80-82 Malibu,Monte Carlo

14016379 350 77-79 Pass,Chevelle,Camaro, Nova,Monte

14016381 305 76-85 Truck

14016381 305 78-85 Pass,Malibu, Camaro,Nova

14016383 305 80-85 Truck

14088526 350 87 Camaro

14088548 350 86-88 Truck One Piece rear main seal
14088551 305 86-88 Truck One Piece rear main seal
14088551 305 86-88 Pass,Malibu One Piece rear main seal
14093627 305 87 Pass,Malibu One Piece rear main seal
14093638 350 86-87 Truck One Piece rear main seal
14093638 350 87 Camaro One Piece rear main seal
14101148 350 87 Camaro One Piece rear main seal
14102058 305 87 Truck One Piece rear main seal
14102058 305 87 Pass,Malibu,Monte Carlo, Camaro One Piece rear main seal
14316379 350 69-85 Truck Two Piece Rear Main Seal
14316379 350 78-81 Pass,Malibu, Camaro,Nova One Piece Rear Main Seal


Also check:

Small Block Chevy Engine Block Identification
1Bad62Pro/Street

http://67-72chevytrucks.com/vboard/s...d.php?t=353538

Small Block Chevy Cylinder Head Identification
1Bad62Pro/Street

http://67-72chevytrucks.com/vboard/s...d.php?t=353542

The History Of The Chevy Small-Block Motor
1Bad62Pro/Street

http://67-72chevytrucks.com/vboard/s...d.php?t=354680

Vin Number query:
http://67-72chevytrucks.com/vboard/s...d.php?t=402078


60-66 FAQ's:
http://67-72chevytrucks.com/vboard/s...d.php?t=381321