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Just Hemis! Hemi talk & Q&A!

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Old 10-10-2015, 10:46 PM
Willowbilly3 Willowbilly3 is offline
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Default Truck Hemi

I seem to have forgotten what I knew about the later truck Hemis. I found one, I think it is a 58. Some version of a 354? What's different from a car engine?.
When logic and proportion have fallen sloppy dead
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Old 10-11-2015, 04:43 AM
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23crate 23crate is offline
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Old 10-13-2015, 12:07 PM
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MercuryMac MercuryMac is online now
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Willow, I have a truck 354 and some opinions.
The car hemis have a water cross-over bolted onto the front of the heads so the car hemi advocates claim they cool better due to better water circulation. Truck Hemis run water between the heads through the intake manifold between the front and second intake tunnels. The car guys are blowin' smoke up your skirt a little, because they can see the crossover on a car engine and can't on a truck one. No-one takes into consideration that that truck ran twelve hours a day with some-ones foot pushed right up to the carburetor, burning gallons of gas an hour and the engine never heated up. There must be enough circulation in a truck engine.
The bellhousing is another story. the truck one is pretty skookum and the car one is better suited to use in a hotrod. The Poly motors have the same bolt pattern on the bellhousing up until 1961.
I have bolted on an A833 four speed to the back of a 270 truck hemi, but I think the baby hemi has a shallower bell than a 354. [look under 1934 Plymouth five window].
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