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Old 12-16-2012, 07:43 PM   #1
yellow400ex05
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identifying the engine in my truck.

Alright I was told that the engine in my '66 is the original factory 327.

now the engine has power pack heads on it so it would be a 250HP 327

i read the suffix code on the front of the engine and came back with a

060IWA from what i can tell. what does this mean?

here's what my engine looks like.
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Old 12-16-2012, 07:56 PM   #2
Ta2Don
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Re: identifying the engine in my truck.

As far as I know, the best way to be sure is to get the engine number off the block behind the driver's side head, near the bellhousing...
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Old 12-16-2012, 08:21 PM   #3
ray_mcavoy
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Re: identifying the engine in my truck.

According to the small block suffix codes listed at: http://www.nastyz28.com/gm-chevy-cod...-suffix-10.php the "WA" is one of the following:

1965-up 283, 2bbl, 175HP, from a C10-35 truck

1968-up 307, 2bbl, 200HP, from a C10-25 truck

1969-up 350, 4bbl, 255HP, from a C20-35 truck

So like Ta2Don said, it's best to get the casting number off the back of the block near the bellhousing. It can be hard to read with the engine in place so you might have to use an inspection mirror to see down in there.


As for the rest of that "0601WA" code you found, the 06 = June (month the engine was originally assembled), and the 01 = 1st day of the month. There's usually a single letter prefix at the beginning of that code that indicates the engine assembly plant.
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Old 12-16-2012, 08:49 PM   #4
yellow400ex05
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Re: identifying the engine in my truck.


looks like the last 3 numbers are 852.
283 2 BBL 195 Horsepower
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Old 12-16-2012, 09:18 PM   #5
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Talking Re: identifying the engine in my truck.

Small Block Chevy Engine Block Identification
http://67-72chevytrucks.com/vboard/s...d.php?t=353538

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

Online engine resources (casting numbers, calculators, etc.)
http://67-72chevytrucks.com/vboard/s...d.php?t=382583
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