Io-540

[jknight8907]

Here's a question for you mechanic guys:

What does the 540 in IO-540 mean? (Or whatever number may be there) Is it the displacement?

thanks

 

[Clutch_Cargo]

Yep, it's the displacement in cubic inches.

cc

 

[Lead Sled]

Yep, it's the displacement in cubic inches.

Are you sure? I thought that it was the overhaul cost per pound of engine weight.

'Sled

 

[NewBlue]

Are you sure? I thought that it was the overhaul cost per pound of engine weight.

'Sled

No that cost is MUCH too low.

 

[bocefus]

For the most part, Clutch_Cargo is correct, but this is not always the case as with the TIGO-541. It is also 540 ci.

 

[VNugget]

Do you know what the deal is with the 541? The number is supposed to be the displacement rounded to the nearest 5 ci.

 

[TrafficInSight]

541 means integral accessory drive.

 

[VNugget]

Any particular reason they had to break the whole system instead of just designating it with a suffix?

 

[jknight8907]

Thanks for the info!

 

[DAS at 10/250]

Just in case you want to know:

TIO-540-J2BD and the LTIO-540-J2BD have a displacement of 541.5 cubic inches with a bore of 5.125 and a stroke of 4.375 with a compression ratio of 7.3:1.