bullrun Posted March 27, 2021 Share Posted March 27, 2021 Motor block in Hawk is marked "JTK308" I believe the JT designates an "R" series motor. Can anyone help me decipher what the JTK stands for. Thanks in advance. Link to comment Share on other sites More sharing options...
r1lark Posted March 28, 2021 Share Posted March 28, 2021 (edited) I believe that indicates a Jet Thrust (R1) engine for a 1964 Lark or Hawk assembled on October 8, 1963 Edited to correct answer.................... Edited March 29, 2021 by r1lark fix incorrect response (see edit history) 1 Link to comment Share on other sites More sharing options...
bullrun Posted March 29, 2021 Author Share Posted March 29, 2021 Well-its in a 64 hawk. any idea what the difference is in a R2 motor? Mine has a 4 BBL carb. Thanks Link to comment Share on other sites More sharing options...
r1lark Posted March 29, 2021 Share Posted March 29, 2021 (edited) An R2 would have the Paxton supercharger. But yours is an R1 engine per my correction above, so yes it should have a 4 barrel carb and no supercharger. I apologize for the confusion. Edited March 29, 2021 by r1lark (see edit history) Link to comment Share on other sites More sharing options...
bullrun Posted March 29, 2021 Author Share Posted March 29, 2021 Well-There is no supercharger-but a 4BBL carburetor. Does anybody know of any other modifications? Possibly different heads? Thanks again for shedding light on the subject Link to comment Share on other sites More sharing options...
8E45E Posted March 29, 2021 Share Posted March 29, 2021 Copies of Jet Thrust News are archived here------> https://studebaker-info.org/JTN/jtn.html Craig Link to comment Share on other sites More sharing options...
John DePrey Posted March 29, 2021 Share Posted March 29, 2021 it's a R1. If it was an R2 made that day it would be JTSK308. JT = R1, JTS = R2. Link to comment Share on other sites More sharing options...
r1lark Posted March 29, 2021 Share Posted March 29, 2021 (edited) 1 hour ago, John DePrey said: it's a R1. If it was an R2 made that day it would be JTSK308. JT = R1, JTS = R2. Thank you John for correcting me, you are absolutely right!! Don't know what in the world I was thinking.............or not thinking at all. Edited March 29, 2021 by r1lark added an emoticon (see edit history) Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now