1938_chevy Posted March 17, 2007 Share Posted March 17, 2007 any 1 ever hear of a 302 chevy engine and if so any ideas for websites i could go to about them? Link to comment Share on other sites More sharing options...
JFranklin Posted March 18, 2007 Share Posted March 18, 2007 I think that was a stroked and bored 283 small block Link to comment Share on other sites More sharing options...
Guest Posted March 18, 2007 Share Posted March 18, 2007 I believe 302 was a I6 engine used in the 50's/60's in some chev or GMC trucks. I know the valves are the same as my Pontiac except that they are .040" oversize and have a different face angle. In 1969 I needed valves and these were a simple modification. You might try the "inliners" website and forum for more information. Link to comment Share on other sites More sharing options...
1938_chevy Posted March 18, 2007 Author Share Posted March 18, 2007 u know any websites that would have more info about them i asked chevy befor and they said that they dont have records of making a 302 Link to comment Share on other sites More sharing options...
JFranklin Posted March 19, 2007 Share Posted March 19, 2007 Do you think you have one? I think it as racing term and not Chevrolet made, The extreme bored 283 - 4"?, was know as a 301 and a stroked 283 was called a 302 Link to comment Share on other sites More sharing options...
Guest Dave Wyatt Posted March 20, 2007 Share Posted March 20, 2007 If it's a 6 cylinder, it would be the GMC truck engine. They are the same general design as the Chevy 6 of the pre '63 or so era.If it's a later V8, it's either a bored 283 or the factory Z-28 engine of 67 - 69. Link to comment Share on other sites More sharing options...
1938_chevy Posted March 20, 2007 Author Share Posted March 20, 2007 i think it cam from lat modle gmc 1950 and early modle 1960 and my dad is tring to get 1 to put in his 1928 essex rat rod that he is working on he also told me that u could put a 198 heads on to a 283 and i was sapose to rasie the comprision up to 9.1 or something like that i think it was those engines anyways Link to comment Share on other sites More sharing options...
joe_padavano Posted March 25, 2007 Share Posted March 25, 2007 Dave's right. The GMC I6 302 was a popular truck motor in the late 50s. It was pretty much a drop in replacement for the similar vintage Stovebolt Chevy six, and there's no replacement for cubic inches. Lots of aftermarket parts available at the time. The Chevy 302 V-8 was only offered in the 67-69 Camaro Z/28s and was created by mating a 4.00" bore 327 block with a 3.00" stroke 283 crank. This motor was developed by Chevy to comply with the 5.0 liter max displacement limit in Trans Am racing at the time. As an aside, combining the leftover 327 crank and 283 block yielded the Chevy 307, as found in legions of Novas and Malibus in the early 1970s (and not to be confused with the Olds 307 of the 1980s). Link to comment Share on other sites More sharing options...
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