what motor do i have

[72rat]

3GM 18k183845 VO305EI or ET

heads GM32 3973487 H241 ????

thx for your time

[Jimbotronics]

I didn't find the engine, but if it's stock I would assume a 350.

This is what the heads show
3973487....71-72...350..........used on 71-72 350 LT1, 75cc chamber

[72rat]

k cool could the motor be a 305 with 350 heads?

[LockDoc]

72rat,

I'm not sure what location on the block that engine number came from but if you get the one from the back of the block (on the flange where the Trans. or bell housing bolts) and look it up here:

http://www.mortec.com/castnum.htm

it should tell you.

This page shows the diff. casting # locations for Chevy blocks.

http://www.mortec.com/location.htm

LockDoc

[72rat]

3914678....302.....68....2...Z-28 Camaro
3914678....327.....68....2
3914678....350.....68....2

this is the motor now how do i find witch one?

[70rs/ss]

I wouyld guess its the 327 cause the 350 was mostly a camaro motor till late 69-70. The end all sure all is to pull a head and measure the bore. What year truck is it out of?

[72rat]

Originally Posted by 70rs/ss

I wouyld guess its the 327 cause the 350 was mostly a camaro motor till late 69-70. The end all sure all is to pull a head and measure the bore. What year truck is it out of?

1972 i was told it was a 327 with 350 heads

[RSRXION]

The 18K183845 is a partial VIN from the original vehicle the engine was installed it. The real story will come from the EI or ET . I'll check it tomorrow when I get home to my books. I'm at the FD tonight but I'll check it out as soon as I get home tomorrow. My guess is that it's a 68. Dean