Engine Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**68350** · 03-03-2010, 03:26 PM

Ok, so I just bought a new vehicle and I cannot find anything on the block. The front pad reads F0304C. There is no casting number that I can find. On the passenger side behind the head there is what looks like a tag that say C 34. The heads are 63-65 283 powerpak or 62-64 327 vette(have a build date of 1963). There is an XT on the drivers head and a T on the passenger head, both have a solid triangle that follows. Anyone know what that means on the heads? Anyone know what the engine is and what the C 34 means? thanks

**mr48chev** · 03-03-2010, 03:45 PM

The casting number you are looking for is on the Driver's side behind the left head.

This is on a bare 350 block sitting in my garage but it shows where the casting number you want should be on a small block.

Most likely the 283 Casting number would be one of these

3737739 1957-64 283 170-290 2 220-290hp Corvette's
3756519 1958-62 283 170-315 2 passenger, corvette
3789817 1958-68 283 2
3789935 1961-66 283 only 170-315 2 passenger, corvette
3790721 1962-65 283 170-220 2 Chevy II recessed oil filter boss
3792582 1964-65 283 2
3794226 1958-63 283 170-195 2 passenger
3834810 1964-66 283 195-200 2 passenger, chevelle, truck
3834812 1962-63 283 170-195 2 passenger, commercial trucks
3837739 1958-62 283 2
3849852 1957-66 283 multiple 2 truck, passenger, chevelle
3849935 1965-67 283 2

327 numbers here

Engine Block Codes for CID 327
Casting Years CID HP Main Notes
3782870 1962-67 327 250-375 2 passenger, chevelle, corvette
3789817 1962-67 327 2 truck
3790721 1965-66 327 250-350 2 Chevy II recessed oil filter boss
3791362 1962-67 327 250-350 2 Chevy II recessed oil filter boss
3792563 1965 327 2
3794460 1962-64 327 2
3814660 1968-69 327 2
3830944 1963 327 2
3858174 1964-67 327 275-350 2 passenger, chevelle, corvette, trucks
3858180 1964-67 327 250-375 2 passenger, chevelle, corvette
3892657 1966-67 327 210-350 2 Passenger/Chevelle/Corvette/Camaro
3903352 1967 327 210-350 2 Passenger/Chevelle/Corvette/Camaro
3914660 1968 327 210-300 2 Passenger/Chevelle/Chevy II/Camaro/Corvette
3914678 1968 327 210-350 2 Passenger/Chevelle/Chevy II/Camaro/Corvette
3932386 1969 327 2 ?? Unverified
3956618 1968-69 327 235 2 Passenger
3959512 1962-67 327 2 Was also used for some replacement blocks

**68350** · 03-03-2010, 08:24 PM

there is no casting numbers back there. i degreased the area you posted a picture of earlier before posting in search of it.

**GruntMoanCough** · 03-03-2010, 09:00 PM

My guess is: Flint plant, March 4, 1960 - 283 (170 HP)

There should be a casting number where Mr48 said.

Slow Build · 05-21-2010, 08:28 PM

Quote:

Originally Posted by 68350

there is no casting numbers back there.

That's where mine are. This is why I love digital cameras. Just stick the camera behind the dr side valve cover and face the camera toward bellhousing and click.

03-03-2010, 03:26 PM	#1
68350 Senior Member Join Date: Jan 2002 Location: Williston, ND Posts: 2,999	Engine Help Ok, so I just bought a new vehicle and I cannot find anything on the block. The front pad reads F0304C. There is no casting number that I can find. On the passenger side behind the head there is what looks like a tag that say C 34. The heads are 63-65 283 powerpak or 62-64 327 vette(have a build date of 1963). There is an XT on the drivers head and a T on the passenger head, both have a solid triangle that follows. Anyone know what that means on the heads? Anyone know what the engine is and what the C 34 means? thanks __________________ 68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi

03-03-2010, 03:45 PM	#2
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,633	Re: Engine Help The casting number you are looking for is on the Driver's side behind the left head. This is on a bare 350 block sitting in my garage but it shows where the casting number you want should be on a small block. Most likely the 283 Casting number would be one of these 3737739 1957-64 283 170-290 2 220-290hp Corvette's 3756519 1958-62 283 170-315 2 passenger, corvette 3789817 1958-68 283 2 3789935 1961-66 283 only 170-315 2 passenger, corvette 3790721 1962-65 283 170-220 2 Chevy II recessed oil filter boss 3792582 1964-65 283 2 3794226 1958-63 283 170-195 2 passenger 3834810 1964-66 283 195-200 2 passenger, chevelle, truck 3834812 1962-63 283 170-195 2 passenger, commercial trucks 3837739 1958-62 283 2 3849852 1957-66 283 multiple 2 truck, passenger, chevelle 3849935 1965-67 283 2 327 numbers here Engine Block Codes for CID 327 Casting Years CID HP Main Notes 3782870 1962-67 327 250-375 2 passenger, chevelle, corvette 3789817 1962-67 327 2 truck 3790721 1965-66 327 250-350 2 Chevy II recessed oil filter boss 3791362 1962-67 327 250-350 2 Chevy II recessed oil filter boss 3792563 1965 327 2 3794460 1962-64 327 2 3814660 1968-69 327 2 3830944 1963 327 2 3858174 1964-67 327 275-350 2 passenger, chevelle, corvette, trucks 3858180 1964-67 327 250-375 2 passenger, chevelle, corvette 3892657 1966-67 327 210-350 2 Passenger/Chevelle/Corvette/Camaro 3903352 1967 327 210-350 2 Passenger/Chevelle/Corvette/Camaro 3914660 1968 327 210-300 2 Passenger/Chevelle/Chevy II/Camaro/Corvette 3914678 1968 327 210-350 2 Passenger/Chevelle/Chevy II/Camaro/Corvette 3932386 1969 327 2 ?? Unverified 3956618 1968-69 327 235 2 Passenger 3959512 1962-67 327 2 Was also used for some replacement blocks Last edited by mr48chev; 03-03-2010 at 03:50 PM.

03-03-2010, 08:24 PM	#3
68350 Senior Member Join Date: Jan 2002 Location: Williston, ND Posts: 2,999	Re: Engine Help there is no casting numbers back there. i degreased the area you posted a picture of earlier before posting in search of it. __________________ 68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi

03-03-2010, 09:00 PM	#4
GruntMoanCough Registered User Join Date: May 2009 Location: Pemberton, BC Posts: 1,075	Re: Engine Help My guess is: Flint plant, March 4, 1960 - 283 (170 HP) There should be a casting number where Mr48 said. __________________ My goal in life is to be as good a person as my dog already thinks I am - Unknown

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.