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Old 05-25-2008, 06:44 PM
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Diamond T engine choice question

OK, the Diamond T 201 has been setting in my driveway for a month now, and I've had time to find out that:

a) The original Hercules 6 is stuck

b) I don't really want to rebuild it

c) I really want it to be cabable of pulling our Spartan travel trailer (25 foot,
1946 Spartan Manor)

d) no way I'm putting a diesel in it at a dollar more per gallon, and even if I
did, it's not gonna be a 4bt.

e) I'd really like not to have an SBC in it, as I have two cars now with them.

So, I'm thinking that a GM 4.3 V6 and a 5spd from a base full size pickup might just be the ticket. Or, the similar Dodge and handshaker. I could leave the Diamond T's 4.62 rear, with OD it'd be just fine for towing, it'd get almost reasonable economy, and with that rear gear, would pull stumps.

There must be thousands of 10 to 15 year old pickups out there cheap as donors, a V6 would be a perfect fit in the ridiculously small engine bay, and a 5spd would be fun. One requirement is that the original gauges must stay, and I don't want to invest in a manual speedo drive for an electronic automatic trans, so the 5 spd should eliminate that too, unless they aren't manual speedo's anymore either.

So, any opinions about that from my fellow hot rodded Diamond T addicts?

Brian

Oh, as for the box, I want to build an "express delivery" style box, in favor of the flatbed originally mounted.

So

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Old 05-26-2008, 12:30 AM
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Pick up another Caddy motor. I don't think the v-6 has the torque to move the Diamond as well as a guy would like it to. Or maybe a GMC v-6, they had loads of torque.
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Old 05-26-2008, 01:29 AM
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I put an International 345 and a Clark 5 speed in a 1942 Diamond T model 868 like this one..


There was heaps of room, and now it is way faster than what it was with the 572" inline 6 that WAS in it...

Later, mikey
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Old 05-26-2008, 02:28 PM
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The 201 engine bay is TINY, short and narrow. The back two cylinders of the Herc are actually under the edge of the firewall. The Caddy 472 is actually not much bigger than an SBC, externally, but I don't want to use that particular engine in this project. The International would be an OK choice if I had one, which I don't, and if it'd fit, which it won't.

Brian
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Old 05-30-2008, 12:59 AM
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how bout a 440 Dodge out of an old motorhome, plenty of torque and still fairly cheap to buy. How big is this truck? is it like a duece and a half or smaller? By the sound of the engine bay it must be smaller?
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Old 05-30-2008, 06:14 AM
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Just to be a bit different ..How about a chev 292 six or a ford 300 six...Either one will have a lot more beans than the Herc 6 that was in there and would look like it belongs..Either of those engines could pull that trailer just fine..

Sam
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Old 05-30-2008, 09:49 AM
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I wouldnt do the 4.3,they just dont get enough fuel economy to justify the lack of the other two cylinders.

Shane
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Old 06-01-2008, 01:38 AM
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Quote:
Originally Posted by flynbrian48
One requirement is that the original gauges must stay, and I don't want to invest in a manual speedo drive for an electronic automatic trans, so the 5 spd should eliminate that too, unless they aren't manual speedo's anymore either.
I know the NV3500 they put behind the 4.3L Chevy's have electronic speedometers, at least the one in the early 90's C1500 I changed did. You'd pretty much have to stay before '90 to get a mechanical speedometer.

Last edited by elliott; 06-01-2008 at 01:45 AM. Reason: It was a NV3500, not NV4500.
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