396021F WHAT YEAR?

ZASX · December 8th, 2007, 12:10 PM

HI I NEED LOTS OF HELP HERE LOOKING TO FIND OUT WHAT YEAR EXACTLY THIS IS & WHAT ARE THE SPECS FOR THIS ENGINE,THANKS ALOT FROM TH E ROOKIE.

don71 · December 8th, 2007, 04:58 PM

Click here to get the location of the vin pad.

http://i122.photobucket.com/albums/o...es/Head_ID.jpg

See where it states 39M123456.
The 3 means olds division
The 9 means 1969
M means it was assembled at Lansing MI plant.
The other six numbers are the vehicle serial number

For your question, you are concerned with the second number. This will give you the year. 0 will be 1970 a number 4 will be 1974. If I'm not mistaken, 455 engines which are 396021 were made from 1967 till 1976.

orange442 · December 8th, 2007, 09:08 PM

Quote:

Originally Posted by don71

If I'm not mistaken, 455 engines which are 396021 were made from 1967 till 1976.

The 68-72 had 396021 F and the 73-76 had 396021 FA.

DelawareDave · December 11th, 2007, 05:05 PM

Quote:

Originally Posted by orange442

The 68-72 had 396021 F and the 73-76 had 396021 FA.

I have 2 1974 production stamped blocks. Both virgin. One is Fa, other is F.

orange442 · December 11th, 2007, 05:51 PM

Quote:

Originally Posted by DelawareDave

I have 2 1974 production stamped blocks. Both virgin. One is Fa, other is F.

The F block may have been a replacement block. Post both the stampings on both blocks. What is the F number on the rear of the blocks?

DelawareDave · December 12th, 2007, 04:01 AM

The F block is stamped 34Exxxxxx F7 (1974 Delta 88)
The FA block is stamped L4ExxxxxG F7 (1975 boat)
F block does have mounting hole for clutch "Z" bar ball with A/T flywheel and crank.
Marine FA does not, but has M/T flywheel and crank.
I know of others with 74 F blocks, as well.
I didn't check Julian date codes, but I suspect the F may be early production, and the FA to be late production due to being in a 75 model boat.

orange442 · December 12th, 2007, 09:41 AM

I have 2 73 blocks out of big cars and they are both FA blocks with F5 on the rear. All the 73 and later blocks I have seen have been that way. I do have one 73 block that the guy took the A off the block to make it look like an earlier block. If I did not know he did it, you would never know.

DelawareDave · December 12th, 2007, 11:34 AM

Quote:

Originally Posted by orange442

I have 2 73 blocks out of big cars and they are both FA blocks with F5 on the rear. All the 73 and later blocks I have seen have been that way. I do have one 73 block that the guy took the A off the block to make it look like an earlier block. If I did not know he did it, you would never know.

To be honest, I was surprised to find that I had gotten a 74 F block. I didn't even check to verify it was a 455. I just loaded the motor and drove home with it. I'm not one to kick a gift horse in the mouth.
Easiest way to spot a fake F block, is to look at the driver's side, where the starter bolts on. Directly aft of the starter brace tab, 3" or so, is a threaded hole, either 7/16", or 1/2" with a round machine mark about 1 1/2" diameter. Fa block does not have this hole, but F block does. It's something you just can't fake, lol.

DelawareDave · December 12th, 2007, 12:00 PM

Here is what I described in my previous post.

J-(Chicago) · December 12th, 2007, 01:08 PM

My Olds was built in Wilmington, DE !

DelawareDave · December 12th, 2007, 03:01 PM

Quote:

Originally Posted by J-(Chicago)

My Olds was built in Wilmington, DE !

Boxwood Road assembly?

J-(Chicago) · December 12th, 2007, 03:10 PM

Had to be. 80% of the town taxes from what I've heard.
What is the population over there, 50k?

P.s. I think I have a 75 olds marine carb laying around. # 7045183 K4 1475

DelawareDave · December 13th, 2007, 08:50 AM

Quote:

Originally Posted by J-(Chicago)

P.s. I think I have a 75 olds marine carb laying around. # 7045183 K4 1475

I go past the plant to and from work.
I'm interested. Got a pic? I'll check my carb number. I think it might be 17045183, tho.

J-(Chicago) · December 13th, 2007, 01:32 PM

Quote:

Originally Posted by DelawareDave

I think it might be 17045183, tho.

Same thing, they added a 1 in front of the carb numbers in 75 I believe, and everything started with 170 after that.

EDIT: Apparently it is not a marine carburetor, having the emissions vacuum pieces on it.
I cannot find the GM application numbers for this. and the decoder on 442.com is dead wrong.

J-(Chicago) · December 13th, 2007, 01:38 PM

Quote:

Originally Posted by ZASX

HI I NEED LOTS OF HELP HERE LOOKING TO FIND OUT WHAT YEAR EXACTLY THIS IS & WHAT ARE THE SPECS FOR THIS ENGINE,THANKS ALOT FROM TH E ROOKIE.

Sorry ZASX. You can have your thread back.

December 8th, 2007, 12:10 PM	#1 (permalink)
ZASX Registered User Join Date: Dec 2006 Posts: 54	396021F WHAT YEAR? HI I NEED LOTS OF HELP HERE LOOKING TO FIND OUT WHAT YEAR EXACTLY THIS IS & WHAT ARE THE SPECS FOR THIS ENGINE,THANKS ALOT FROM TH E ROOKIE.

December 8th, 2007, 04:58 PM	#2 (permalink)
don71 feed the pig Join Date: Jun 2007 Location: Central Missouri Posts: 226	Click here to get the location of the vin pad. http://i122.photobucket.com/albums/o...es/Head_ID.jpg See where it states 39M123456. The 3 means olds division The 9 means 1969 M means it was assembled at Lansing MI plant. The other six numbers are the vehicle serial number For your question, you are concerned with the second number. This will give you the year. 0 will be 1970 a number 4 will be 1974. If I'm not mistaken, 455 engines which are 396021 were made from 1967 till 1976. __________________ 1971 Cutlass S Holiday coupe-455/th400 3.23 Oldsmobile they were meant to be driven.

December 12th, 2007, 04:01 AM	#6 (permalink)
DelawareDave Junior Member Join Date: Nov 2007 Location: Wilmington, De Posts: 9	The F block is stamped 34Exxxxxx F7 (1974 Delta 88) The FA block is stamped L4ExxxxxG F7 (1975 boat) F block does have mounting hole for clutch "Z" bar ball with A/T flywheel and crank. Marine FA does not, but has M/T flywheel and crank. I know of others with 74 F blocks, as well. I didn't check Julian date codes, but I suspect the F may be early production, and the FA to be late production due to being in a 75 model boat. Last edited by DelawareDave; December 12th, 2007 at 04:05 AM..

December 12th, 2007, 01:08 PM	#10 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	My Olds was built in Wilmington, DE ! __________________ I'd rather have a numbers matching poker hand.

December 12th, 2007, 03:10 PM	#12 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	Had to be. 80% of the town taxes from what I've heard. What is the population over there, 50k? P.s. I think I have a 75 olds marine carb laying around. # 7045183 K4 1475 __________________ I'd rather have a numbers matching poker hand. Last edited by J-(Chicago); December 12th, 2007 at 03:14 PM..

December 12th, 2007, 09:41 AM	#7 (permalink)
orange442 Registered User Join Date: May 2006 Location: Bartlesville, Oklahoma Posts: 184	I have 2 73 blocks out of big cars and they are both FA blocks with F5 on the rear. All the 73 and later blocks I have seen have been that way. I do have one 73 block that the guy took the A off the block to make it look like an earlier block. If I did not know he did it, you would never know.

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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
what year is my 350?	ricardo	Small Blocks	6	January 2nd, 2009 05:38 AM
What year?	mustj1	Other	8	April 26th, 2007 05:50 AM
Merry Christmas & happy new year	American Lead	Other	1	December 21st, 2006 04:36 AM
Does 1965 Olds Jetstar 88 match with other GM and olds of the same year?	hoppers69	Eighty-Eight	2	May 9th, 2006 09:36 PM