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Discussion Starter · #1 ·
I'm looking a bit for a new truck. Here's my question:
I know that you HAD to get a manual tranmission to get a H.O. Motor. Could you get manual without a H.O.? Promblem I am seeing is that many dealers really don't know squat about the truck they are selling. They advertise it's a 01 manual...nothing more. Curious if I need to go through asking every dealer for more info before I get serious.

Thanks,
Ryan
 

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You can get a manual in HO or SO but you could only get the 6spd with the HO and I THINK the 01 or 02 trucks.
 

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You can get a manual in HO or SO but you could only get the 6spd with the HO and I THINK the 01 or 02 trucks.
That sounds about right :agree2:
 

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You can get a manual in HO or SO but you could only get the 6spd with the HO and I THINK the 01 or 02 trucks.
What is the difference in the HO and the SO in the 01 trucks??
 

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The 01 and 02 six speeds are HO's. The 5 speeds are SO's. The difference is ten h.p. SO is rated at 235 and HO is rated at 245
 

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The 01 and 02 six speeds are HO's. The 5 speeds are SO's. The difference is ten h.p. SO is rated at 235 and HO is rated at 245
What do they put on or do to the HO's that make them 10 more horsepower than the SO's??
 

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Not exactly sure. I think they used different pistons for sure. Not sure what else is different about them.
 

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Slightly different (read crappier for adding power) injection pump, and slightly higher compression pistons.

You can get a 6 speed in a non HO truck for one of the years and I think it was 01 or 02. Other than that you only got the 6spd in an HO and 9 times out of 10 if it's a 6spd it's an HO. Other than a 6spd, the HO and SO are the same. I doubt you'll notice the power difference (stock anyways) and they get the same mileage for the most part.
 

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A college buddy of mine had an 02 HO w/ a five speed, they're rare, but they're out there.

p.s. the valve covers on the HO trucks are black w/ silver letters and the SO trucks have grey w/red letters, or so i've noticed, someone correct me if i'm wrong.
 

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all 01-02 6 speed are HO motors. the 8th letter of the vin is a 7 if i remember right.

all 99-00 6 speeds are SO motors with a smaller input shaft. (also hard to find)

all 98.5-02 5 speeds are the same with SO motors.
 

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Discussion Starter · #14 ·
Thanks guys, that's exactly what I was looking for. Now if I can confirm a truck is a 6 speed, I'll know it's a H.O.
One other question, if someone else has a bit more time to help me out I just thought of one more question:
Were any H.O's built with 53 blocks?
I hardly put any miles on my truck any more. I also store it inside. I'm looking for a truck to buy to keep for a REAL long time. Far as I can tell 01.5-02 is the very best production years. Disk rear breaks, 6 speed transmission, and I don't like the 3rd gen body style. Here's to hoping before to long I can afford an upgrade. :)
Thanks again for the help!
Ryan
 

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I got a HO and a 53 block,but not all are 53 blocks in those years.I cant get no more than 500hp out of my HO
 

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Discussion Starter · #16 ·
I'm not worried one bit about dodifications. I want something that will last a very long time. That's why I keep them stock, modifications only to improve reliability (lift pumps and such). In fact, if I found a truck that was perfect except a 53 block, that would probably not keep me from purchasing. It appears a very small percentage have ever cracked in stock form. I race cars, not trucks. I want my truck to be the dependable one to get broken cars around on a trailer!
Thanks again for all the help.
Ryan
 

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I got a HO and a 53 block,but not all are 53 blocks in those years.I cant get no more than 500hp out of my HO
put a SO pump on there (screw the hot rod pumps) or possibly a monster pump (that's very debatable still). the SO VP44 wont fuel as hard down low, but will make 600,700 hp with the right supporting mods. a stock HO pump wont push more fuel than 150hp injectors will push (aka 200hp injectors aren't using all of the fuel they can push)

there are some 53 blocks in the 01's, but very few. my 01 HO i just traded didn't have a 53.
 

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One way to find out is look at the engine data plate on the side of the engine. If it says 245hp-HO, 235hp-SO.
 

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My SO had black with silver letters.
I stand corrected then- thanx:thumbsup

Just for the record, the picture of my SO engine in my avatar, I did paint the valve cover black (used to be grey) and took a roloc disc to the letters. i used the wrinkle finish paint turned out sweet!
 

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In addition to the 10 HP difference, there was also a 45 Ft-Lb difference in torque. The SO = 460 Ft-Lb, the HO = 505 Ft-Lb.

Also, peak torque in SO was 1600 - 2700 rpm, in HO it was 1600 - 2300 rpm.

With the tighter rpm range, the extra gear comes in handy.....
 
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