tha #'s ?
- Thread starter bignbad60
- Start date
M
MK IISS
Guest
Mk II
"I was able to start with a clean sheet of paper. Displacement remained at 409ci. Virtually the only dimensions retained from the W-engine were the bore centers of 4.48 in. and the crankshaft-center-to-camshaft-center distance."
D. Keinath
"I was able to start with a clean sheet of paper. Displacement remained at 409ci. Virtually the only dimensions retained from the W-engine were the bore centers of 4.48 in. and the crankshaft-center-to-camshaft-center distance."
D. Keinath
The confusion being, saw a block on ebay ( see ebay related post )...checked casting #'s on mortec site...http://www.mortec.com/wmotor.htm... and they show same casting used for 409 and 427...so I'm just trying to figure out what this block is and what it might be worth...I figure it would be $'s if it truly was a mystery 427 block....
http://www.mortec.com/wmotor.htm
http://www.mortec.com/wmotor.htm
Block markings
The 427 referred to was the Z-11 427. Still the 409 style block. Was stroked to get 427". From 3.5 to 3.65. The 814 block would not be a mystery motor block. The deck stampings on the block at the right front would tell what it was. QB was a dual 4bbl engine, QA was 1 4 bbl 400 HP. The 427 Z-11 block was stamped QM. There were others, but these give you an idea how they marked them.
Fred
The 427 referred to was the Z-11 427. Still the 409 style block. Was stroked to get 427". From 3.5 to 3.65. The 814 block would not be a mystery motor block. The deck stampings on the block at the right front would tell what it was. QB was a dual 4bbl engine, QA was 1 4 bbl 400 HP. The 427 Z-11 block was stamped QM. There were others, but these give you an idea how they marked them.
Fred
I think there was about 17,000 409s built in 63 with that casting number. There was also about 50 Z-11 427s made with the same castings. The odds are it'll be a 409. I don't think there was any differences you could look for, except for the deck stampings like Fred said. They had two bolt mains just like a regular 409 and I don't think there would have been any extra machining needed for the extra stroke.
Fran Preve
Banned
The mystery motor had the same timing cover, oil pan and fuel pump, except for the 90 degree head bank it was the same as the 409. The crank and rods were the same as the 427 engine used in the Z-11 package.
bignbad60, The guy selling the block also has the crankshaft for sale in a seperate auction. 409 crankshaft
M
MK IISS
Guest
bignbad: the block on ebay has a "QG" suffix code which I believe is a 340 horse 409.
