SS/D

[Chevy454]

It moved around every year through there, you'll have to pick a specific year(s)...being straight "D" means it's a stick, but it could've been anything from a 427 big car or 396 smaller car early to an L72 to an LS6 (I believe?) later on...I don't *believe* any small block stuff was in SS/D territory, but I'm not up on the SBC stuff, but I be Sammy could tell us. You have to remember, each year something hotter/faster came off the line so NHRA had to adjust, until about '71...then the NHRA readjusted everything in '73 until like '05 or so when they added the AH, AA, etc., stuff.