Robert Jacobson
Active Member
Greetings to all. I,ve been a 409 lover since before I could drive when I got a ride in a 62 ss 409 impala convertable which had open headers with a guy who could shift a four speed like no one I've seen to this day. Anyway, I picked up a 425 hp 409 in 1968 that was sitting on a pallet in a marina for $500. I sold the velvet drive marine transmission for $250 that was attached to it. After investigating my new acquisition, I found that the engine ran backwards and was built by Aero Marine. Contacting them, I learned that they made ten of these engines, five running in reverse rotation, and also found out that the engine had a 3/8 inch stroker crank. I installed it in a Stevens flat bottom drag boat and ran it several years. Now it runs standard rotation and resides in my 55 chevy. It's on it's third set of pistons and has been bored .110, has an Isky z-33 camshaft. two holley 750 double pumpers on a Mickey Thompson crossram intake. I had the crankshaft internally balanced so I could run a lightweight L-88 flywheel and clutch in front of the Muncie M-22. Looking forward to being a part of this forum.
I thought my 65 was rare
Pat
Welcome aboard. If my memory serves me correct sounds like you have the 3.65 crankshaft used in the Z11.
