Darren Seitz Posted October 15, 2021 Share Posted October 15, 2021 I am trying to locate the correct water Pump or kit for a 1934 T33A GMC truck Truck tag says T33A, Chassis# 1258, Straight rating# 14000 Engine tag number says General Motors Truck Corp, Pontiac Michigan Type-257 Serial # 12576956, tag matches block # Bore-3 7/16, Stroke-4 5/8, Cyl-6, It is believed that this engine is a Buick GMC mix Thank you for your time Link to comment Share on other sites More sharing options...
TerryB Posted October 15, 2021 Share Posted October 15, 2021 (edited) Here is information from a 1941 King Quality auto parts catalog. The part numbers are theirs so that may not be of much help. Maybe the other info about similar models will be useful. See model years 1931-34. Edited October 15, 2021 by TerryB (see edit history) Link to comment Share on other sites More sharing options...
Darren Seitz Posted October 16, 2021 Author Share Posted October 16, 2021 Thank U Much, that's closer yet Link to comment Share on other sites More sharing options...
Oldtech Posted October 17, 2021 Share Posted October 17, 2021 That doesn't look like a Buick motor. I think it's the 1st GMC built motor. Link to comment Share on other sites More sharing options...
Bloo Posted October 17, 2021 Share Posted October 17, 2021 It probably is, but the first GMC motor was made with the old Buick Six tooling. I imagine they are not the same but pretty close! Poeple have swapped manifolds between the two I'm told. It appears to have overhead valves, so it cant be one of the engines GMC borrowed from Oldsmobile or Pontiac. 1 Link to comment Share on other sites More sharing options...
Darren Seitz Posted October 17, 2021 Author Share Posted October 17, 2021 it is a downdraft carb. w/ overhead valves Link to comment Share on other sites More sharing options...
Mark Shaw Posted October 18, 2021 Share Posted October 18, 2021 I suggest you give up looking for a hen's tooth & just make the bearings, seals and shaft if needed. 1 Link to comment Share on other sites More sharing options...
keiser31 Posted October 18, 2021 Share Posted October 18, 2021 On 10/15/2021 at 7:39 AM, Darren Seitz said: I am trying to locate the correct water Pump or kit for a 1934 T33A GMC truck Truck tag says T33A, Chassis# 1258, Straight rating# 14000 Engine tag number says General Motors Truck Corp, Pontiac Michigan Type-257 Serial # 12576956, tag matches block # Bore-3 7/16, Stroke-4 5/8, Cyl-6, It is believed that this engine is a Buick GMC mix Thank you for your time Try these folks....http://water-pump-rebuilders.com/ Link to comment Share on other sites More sharing options...
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