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Gonzo1717
07-08-2022, 04:51 PM
Looking for a new/nos “B28” vacuum advance can. These were listed under several different part numbers, most commonly known is the VC1810.

Pic for reference.

Thanks!
napa68
07-09-2022, 12:48 AM
If you are looking for a correct specification can, use this......

https://www.corvettecentral.com/c2-63-67/ignition-distributor/performance-distributor/64-67-distributor-vacuum-advance-hi-performance-272033?returnurl=%2fsearch%3fcurrentsearchcategory id%3d%26q%3dvacuum%2badvance%26years%3d1965%26coun t%3d17
Gonzo1717
07-09-2022, 03:49 PM
This can is fully deployed at 8hg like the B28?
napa68
07-10-2022, 11:17 AM
This can is fully deployed at 8hg like the B28?

Yes, I had checked it before installing. I'll add to that, I checked on the part number located on the box (as CC is buying it from someone else) and it was available from Rock Auto. I ordered a couple more just to have as I tend to work on these cars. Those did NOT deploy at 8". Just the one from CC

Tim
Gonzo1717
07-10-2022, 02:33 PM
Tim, thank you for the info. I went ahead and ordered one. I ordered a WVE 4V1053 from RockAuto, which they lost as a replacement for a B28 and it does not fully deploy until 13hg.

What part number did you purchase from RockAuto?
napa68
07-10-2022, 02:39 PM
Tim, thank you for the info. I went ahead and ordered one. I ordered a WVE 4V1053 from RockAuto, which they lost as a replacement for a B28 and it does not fully deploy until 13hg.

What part number did you purchase from RockAuto?

Cannot remember.....
Zman1969
07-15-2022, 07:46 PM
I have a B28 still in box I grabbed before they became extinct if your still looking
BCreekDave
07-15-2022, 08:37 PM
Here's a couple good reads on the Vac can subject with cross references if you were not aware:

https://www.crankshaftcoalition.com/wiki/images/e/e4/Vacuum_Advance_Specs.pdf

https://www.corvetteforum.com/forums/c1-and-c2-corvettes/3724578-big-block-vacuum-advance-confusion.html#post1590683061
Gonzo1717
07-16-2022, 09:26 PM
PM sent
169indy
05-22-2023, 03:16 PM
[email protected]

Tech Data on 4V1053 avail via Rockauto
169indy
06-29-2023, 04:42 AM
This Solved my Idle problems per the Tech paper above.
I selected the (B28) since it Met the "Rule of 2"

Installed today and tested collected tuning data. Because of my Howards Cam

MECHANICAL FLAT TAPPET AMERICAN MUSCLE CAMSHAFT; 1965 - 1996 CHEVY 396-502 (MARK IV) 1800 TO 6500 HOWARDS CAMS 127192-14

I was getting Poor Vac signal at idle in combination with a sedate vac can (B1 from a L35) caused VERY poor idle in Drive.

B28 Solved this concern, Runs Great on Full manifold Vac signal taken by "T" off the choke pull off pot hose.