hi i bought a engine and tranny for my car he said the engine is a sbc 350 truck block and the tranny is a muncie 4spd the number above the waterpump on the passide of the engine is 132404059 and to912ckj and it also says t2 and on the top side of the tranny the number is 5z144196 and on the bottom side the number is 29711176 rc and on the paside the number is 3851325 us patent no308836 general motors corp and on the midd right side the number is po420 and on the back rigth side the number is 3857584gm and on the input shaft the number is 3815020 gm52 anything would be great thanks

You have a 1970 Muncie 4 speed. from anything.

And a 1973 350, 175hp from a chevelle/monte carlo or full size chevy.

ok thank you i was hoping the engine had more hp but it will i bought it for 200dollars its been rebuilt and is not even broken in its bored 20 over and it looks to have a double roller timing chain and the lobes on the cam look a little tall but im hoping to get around 300 and something hp out of this engine when im done i got it for a cheap price because it spun a rod bearing. the numbers on the cam are 0414 and 14-42-96 and 119306965606 rs and 1539 and cmc and on the timing chain the numbers are 288 10-91 and 1931gm and 3735412 i think its stock i dont know if it means my engine has more hp then stock are not thanks

[This message has been edited by my 81 z28 (edited May 20, 2003).]

From what I can find, the 3857584 casting was the tail housing used on Muncies from mid 1965 through the 1970 model year.

The number 3851325 shows up as the main case for Muncies made in 1965 only.

The P0420 is the correct sequence for an early Muncie (63-66). Those models did not have the year coded on them, but if these parts are all original, my guess would be that it is a late 1965 Muncie. Without looking further into it, it would be difficult to know if it is a M20, M21, or M22.

so will it still work in my 81 z28 if not what do i have to do

There was very little difference between the Muncies,and any one of them should work in your Camaro if you can come up with the right parts like the correct length driveshaft and the clutch pedals to put it all together.