Doxerman51 Posted November 24, 2017 Share Posted November 24, 2017 Hello All, Been awhile since I have been on this forum. Glad to be back. I have a “Spitfire” head with casting/part number 1313826-2. I believe this head was used on the 251/265 Chrysler motors. Just wanted to be certain, so I’m asking you folks. Thanks. Link to comment Share on other sites More sharing options...
Rusty_OToole Posted November 24, 2017 Share Posted November 24, 2017 The Spitfire name was used on postwar Chryslers so you are correct. 6.6:1 compression up to March 1949, 7:1 thereafter. Maybe someone with a parts book could nail down what year you have. Link to comment Share on other sites More sharing options...
c49er Posted November 25, 2017 Share Posted November 25, 2017 1313826-1 is the head on my C48 1950 Chrysler woodie wagon. Link to comment Share on other sites More sharing options...
c49er Posted November 25, 2017 Share Posted November 25, 2017 I have an original 265 too... head # 1120796. Looked in several 1940-54 Mopar parts books and MoTors books.... the cylinder head 1949-54 part #'s conflict among different books... confusing to say the least. There seems to be no positive answer in over an hour of searching this issue from my efforts. Link to comment Share on other sites More sharing options...
Doxerman51 Posted November 25, 2017 Author Share Posted November 25, 2017 Hello c49er, Thanks for the confirmation that it is a 251 Spitfire Head. Is the 1120796 head a Spitfire head or just a plain head. I have a 241 Spitfire head out of a ‘41 Chrysler, that I installed in my IND-7(236) to increase the compression ratio. The number on this head is 869847-1. Casting date of 2-20 which I assume to be Feb. of 1941 or maybe 1940. I have the IND-7 installed in my 1941 WC-12 Military 4x4. I had the motor rebuilt and balanced with a longer duration (Lift) cam. It’s a real smooth runner. Much more “Umph” than the 230 I had in it before and that was with the installation of a 1957 Plymouth head on it. In my estimation, the 25” motors seem to be a bit heavier duty and bettter for the open road than the 23” motors. Link to comment Share on other sites More sharing options...
c49er Posted November 25, 2017 Share Posted November 25, 2017 The 265 out of nice original 54 windsor chrysler ( was rear ended hard) has an original 1120796-2 "Spitfire" head on it. Link to comment Share on other sites More sharing options...
Spinneyhill Posted November 25, 2017 Share Posted November 25, 2017 12 hours ago, c49er said: The 265 out of nice original 54 windsor chrysler ( was rear ended hard) has an original 1120796-2 "Spitfire" head on it. My eyes must be in trouble. It reads 1120806-? to me? Link to comment Share on other sites More sharing options...
c49er Posted November 25, 2017 Share Posted November 25, 2017 You are right. Don't know what to say about that !....looking at too many engines and parts books. Done the best I can on this!!!! Which is not much. Link to comment Share on other sites More sharing options...
Doxerman51 Posted November 26, 2017 Author Share Posted November 26, 2017 I was hoping you would pick up on the error. We all make errors. No big deal. Any chance you can take a full photo of the head? I need to learn how to post pic’s on forums. Still in the dark ages as far as that goes. LOL. Link to comment Share on other sites More sharing options...
c49er Posted November 26, 2017 Share Posted November 26, 2017 Tomorrow i'll get you pictures of the heads on two of my 265 engines and a 251 in a 50 chrysler. Link to comment Share on other sites More sharing options...
Doxerman51 Posted November 26, 2017 Author Share Posted November 26, 2017 Thanks c49er. Have a nice evening. Link to comment Share on other sites More sharing options...
c49er Posted November 26, 2017 Share Posted November 26, 2017 (edited) OK.... Some pictures of the "Spitfire" heads on two Chrysler Windsor 265 engines...one 1953 265 in my 52 dodge 1 ton PU... second 1954 265 spare running engine. Both use head # 1120806-2 Then a picture of a 1950 Chrysler Royal Wagon with a 251 engine and "Spitfire" head # 1313826-1 I also have a couple 1946-48 Chrysler engines (model C38) that I'd like to check the head #'s but a little tough to get to. Edited November 26, 2017 by c49er (see edit history) Link to comment Share on other sites More sharing options...
Doxerman51 Posted November 26, 2017 Author Share Posted November 26, 2017 Thanks for the Photo’s. 1 Link to comment Share on other sites More sharing options...
Lindy Posted February 24, 2019 Share Posted February 24, 2019 Putting together a pilling tractor with a 265 engine, would a "Spitfire" be higher Compression? Would that be more compression than planing the stock head? Link to comment Share on other sites More sharing options...
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