I have a 66 Lemans with a 326 and 092 heads, I have a 63 389 that I want to install and use the 092, 16 or 62 heads on. I have seen a lot of talk about oil passages in the rocker studs in older 389 engines but do not think I will have issues using the 092, 16 or 62 heads. Beside the starter mounting is there any other tips or concerns with using the 63-389?
If you're moving on to the newer style heads you will need to tape the oil hole in the block deck (1 on each side) so you can plug it up. Also check the bell housing bolt holes to see if there 7/16" or 3/8" . I have a 61 half a 389 4 cylinder and there 7/16" . When i first tried bolting up the block i thought the holes where stripped . But later found out they are 7/16".. also check to see if the block was cast like the 4 cylinder , on the bell housing area of the block, for some reason was casted 5/16" shorter. So a 5/16' spacer might be needed in-between the transmission and the block to make it up. I used 1/4" aluminum and it worked fine..