http://www.4btswaps.com/forum/attachment.php?attachmentid=313&d=1171434149

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.

Nope. The glowplugs heat the air already in the prechambers as well as provide an hot bulb to aid atomization/combustion of the cold fuel. A heater grid in the GP place will take a few seconds of cranking before it would fire.

You need a block heater, not an intake heater, or buy a 603, aluminum heads give you warm air in blocks, not miles.

The larger diesels don't really need glowplugs and stuff, didn't have heated intakes commonly until recently, mostly for emissions. The heaters run/cycle during the startup and while the engine is warming up. Might even cycle during extended idling, never checked.

One big difference in the big diesels is the surface to volume ratio, the charge in the cylinder has less wall surface to the volume of compressed air so it loses less heat. The big DDs I have had were 92cid per cylinder, the CATs were a little over 1.25liters per cylinder, and direct-injection. A cold start at 10F on the CAT was about 2seconds cranking and 2minutes of lumpy idle and white smoke-screen.

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Gone to the dark side

- Jeff

I found this on ebay:

http://cgi.ebay.com/ebaymotors/Mercedes-Grid-Heater-Intake-warmer-New_W0QQcmdZViewItemQQcategoryZ36474QQihZ013QQitemZ230234283122QQrdZ1QQsspagenameZWDVW

Thats for their semi-truck engines. Volvo uses an intake heater as well.

heres one from a 2003 cummins 5.9...

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Cheers,
Robert