1973 Novas could be equipped with the following engines: [b]6-cylinder[/b] CCA - 250cid w/powerglide CCB - 250cid w/powerglide and NB2 CCC - 250cid w/3-speed manual and NB2 CCD - 250cid w/3-speed manual [b]8-cylinder[/b] CHA - 307cid 2V w/TH350 CHB - 307cid 2V w/3-speed manual CHC - 307cid 2V w/TH350 and NB2 CHD - 307cid 2V w/3-speed manual and NB2 CHH - 307cid 2V w/TH350 CHK - 307cid 2V w/TH350 and NB2 CKA - 350cid 2V w/3-speed manual CKB - 350cid 4V w/4-speed CKC - 350cid 2V w/3-speed manual and NB2 CKD - 350cid 4V w/TH350 and NB2 CKH - 350cid 4V w/4-speed and NB2 CKK - 350cid 2V w/TH350 and NB2 CKR - 350cid 4V w/TH350 and NB2 CKU - 350cid 4V w/TH350 CKW - 350cid 2V w/TH350

To locate engine codes, on a 6-cylinder engine, the code is stamped on a pad on the passenger side of the block to the rear of the distributor and above the fuel pump. V8 engine codes are stamped on a pad forward of the cylinder head on the passenger side of the block. Post your results here and someone should be able to decode them for you.