273 and 360 interchangeability?

66fs said
Everything from the 273 will work on the 360, except the Balancer, the trans flexplate ( you should get one balanced for a 360). One of the motor mounts is narrower and bolts differently, I think it is the passenger side. If you use 340/360 heads the ports are larger and I would use a corresponding intake. I assume you are running headers... What water pump system do you have, 69 down or 70 up?

Yes I run headers. The hose from the radiator connects on the drivers side of the water pump. That would make it 69 and down right?

70aarcuda said
Driver side motor mounts are different...
timing chain cover is interchangeable...put the timing marks on the early engine are on the opposite side...the 360 timing marks on the the driver side.....you can use a timing tape or just mark the 360 damper on the 273 cover...

Thank you for explaining that. I will probably mark the damper.

Valkman said
The motor can be made to work by creatively using spacers where it mounts to the block.

Do you mean that I could make my motor mounts work with some creativity?

4spdragtop said
The LD4B should mount to 360 unless its been machined. ports sizes are different between heads n LD4B tho

Sorry, I have the D4B intake, my bad.

Coyote Jack said
Is the 360 a newer Magnum type 360. If so there are a few problems that need to be addressed.

Jack

It's the old LA type.

Thanks for the help guys! Really great to have the knowledge of this forum at hand! I will post more info on the 360 later today.