I have a damper/balancer floating around my shed,
what can you tell me about it.
the casting is D2TF…
its 3 bolt.
What should i look for with a 69 351w ?
That balancer is from 1972 or later with a D2 number. Without the rest of the engineering number no way to tell exactly what.
The 1969 351W balancer is a one year only part. It has three bolts to attach the pulley and a C9 engineering number cast into it.
Are you sure it isn’t D2TF? If it is D2TE-6316 according to Scott Drake it will work on 1969 302s and 351Ws. See the Summit Racing link below. Note 302 = 5.0 amd 351 = 5.8
6316 is the group number used for harmonic balancers and associated parts in any year or engine size. The balancer has an engineering prefix after the year, and it has a change level designation after the group number that is also needed for identification of specific application.
For example here is the engineering number cast into a 1969 351W balancer - C9OE 6316-E1.
Ditto on the C9OE-6876-E1 that’s what I have for a 69 Mustang 351W build date Apr, 1969.
For the balancer in question ( D2TF ) the Design Engineering Office letter “F” would signify general parts, and more than likely would have had a Ford Service Part number ( the “Z” in the prefix ) of D2TZ-6316-A,B,C or however many changes were made to the part during it’s production.
From the Ford MPC it should have had a 7" O.D. and was applicable to :
In 1968 its application was models C & F 427 specials ( 4 bbl ).
1968 -70 428 models A, C, C-GT, F ( 2 & 4 bbl ), C & F ( CJ ), P/C & Y.
Hope this helps you - if this is the balancer you have then it is of value to some very desirable big blocks.
I do believe casting(Engineering) numbers will never have a Z for the last alpha. But you will find it on the box or what ever it is packaged in. I think that may also hold for the F. As parts like Fuel senders have an “F” in that location I’m not so sure “General parts”. But as I have stated in the past, I may be wrong and know there are a lot of people who know a lot more then I do.
Also a FE balancer looks a lot different then a Small Block one. Not having seen the one Bluestuff is asking about I will assume itis for a small block.
On closer inspection, i can read D2TE 631601A
The last 0 could be a C
its 165mm diameter.
I believed the FE had a seperate balance weight bolted on, this does not.
No FE engine has any separate balance weight bolted on.
Suggest you post a photo so it can be identified properly.
As I said originally, when Bluestuff posted the Engineering Number as D2TF the original application was for a 1972 Truck ( the third character “T” ) The fourth character “F” indicated ‘general parts’. Bluestuff later verified the Engineering number to be D2TE-6316-O1A ( which the suffix is more than likely to be C1A ) so the 4th character of an “E” now refers to an engine part ( that makes more / perfect sense ).
The basic # of 6316 is an engine balancer ( with engine parts in the basic range of 6000 - 6898 ).
The suffix of C1A would indicate :
“C” = 2nd major revision
“1” = minor revision and
“A” = sub ( minor ) revision.
I googled this and came up with several suggestions that its a 1972 302 Bronco ?
accasionaly a reference to retro fit a 69 302/351 but i’m not so sure about 351w ?
Its designed to use a pulley that centres around the lip on the damper, but the pulley that came in the box of parts it came with uses a lip on the pulley that centres inside a damper …
Im reasonably sure its not the right fit for the 351w but curious as to what its for, which appears to be a 72 302 truck ?
Its night time here so in the morning i will find the number on the pulley and google that and see were that goes …lol
Any balancer that fits a '72 Bronco would bolt up and fit any 302 or 351W of any year that used the same 28 0z imbalance factor. The 302’s built from 1978 - and later had a different balance factor. 351W always had a 28 oz imbalance factor for every and any year.
Not sure about pulleys, that is a different subject although obviously related.