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Ls3 swap 1974 c10

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Old May 10, 2015 | 12:08 PM
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Default Ls3 swap 1974 c10

Hello everyone. Recently my dad and i have been thinking about getting a ls3 for the truck we want to build. we want it to be fast but still daily drive able. Were not sure what all we want to upgrade on the motor but we know we want to get the Vengeance racing kaotik camshaft with there cam kit and some long tube headers. we also want close to 600hp but not necessarily over that (if possible). I would like your help so that we can make this one bad *** truck for my first car.

-thx thoff98
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Old May 10, 2015 | 12:35 PM
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No matter what cam you make a full decision on you can really benefit a good tune and 1 7/8 headers.

Digging in my cookbook just for you cause I love squarebody trucks..let's get started
Cam #1
dum224 in/232 ex
LSA:dum113 Peak Power:dum547 hp @ 6,300 rpm
Peak Torque:dum514 lb-ft @ 5,100 rpm
Ave HP (3,000-6,500):dum37.6 hp
Ave TQ (3,000-6,500):dum82.6 lb-ft
Tq @ 4,000 Peak Power:dum547 hp @ 6,300 rpm
Peak Torque:dum514 lb-ft @ 5,100 rpm
Ave HP (3,000-6,500):dum37.6 hp
Ave TQ (3,000-6,500):dum82.6 lb-ft
Tq @ 4,000 RPM:dum480 lb-ft

Cam #2
Lift:dum.617 in/ .624 ex
Duration @ .050:dum231 in/239 ex
LSA:dum113
Peak Power:dum566 hp @ 6,400 rpm
Peak Torque:dum517 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500):dum441.4 hp
Ave TQ (3,000-6,500):dum485.4 lb-ft
Tq @ 4,000 RPM:dum477 lb-ft

Cam#3
Lift:dum.647in/.612ex
Duration @ .050:dum235 in/244 ex
LSA:dum111 degrees
Read Peak Power:dum573 hp @ 6,400 rpm
Peak Torque:dum526 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500):dum449.4 hp
Ave TQ (3,000-6,500):dum494.5 lb-ft
Tq @ 4,000 RPM:dum484 lb-ft

Now let me dig a little bit deeper. The 224 cam increased power all the threw the entire power curve with no loss of torque no where. Awesome cam all the way around in my opinion. The 231 cam and the 224 cam was neck to neck as far as torque goes but later in the power car the 231 starts to outshine the 224 cam. The 224 cam idles way nicer too. Almost forgot to tell you running a cam over 230 duration you'll definitely want to check PTV.
Last in the line up. The 235 cam is really meant for a weekend warrior instead of daily driver type cam. PTV becomes a really big factor running this cam. The 235 cam would need lot of gear/stall to really take advantage of the type of manners it likes. Not what I'd recommend for you.

Good luck and I hope this helps you.
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Old May 10, 2015 | 01:30 PM
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Originally Posted by Tuskyz28
No matter what cam you make a full decision on you can really benefit a good tune and 1 7/8 headers.

Digging in my cookbook just for you cause I love squarebody trucks..let's get started
Cam #1
dum224 in/232 ex
LSA:dum113 Peak Power:dum547 hp @ 6,300 rpm
Peak Torque:dum514 lb-ft @ 5,100 rpm
Ave HP (3,000-6,500):dum37.6 hp
Ave TQ (3,000-6,500):dum82.6 lb-ft
Tq @ 4,000 Peak Power:dum547 hp @ 6,300 rpm
Peak Torque:dum514 lb-ft @ 5,100 rpm
Ave HP (3,000-6,500):dum37.6 hp
Ave TQ (3,000-6,500):dum82.6 lb-ft
Tq @ 4,000 RPM:dum480 lb-ft

Cam #2
Lift:dum.617 in/ .624 ex
Duration @ .050:dum231 in/239 ex
LSA:dum113
Peak Power:dum566 hp @ 6,400 rpm
Peak Torque:dum517 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500):dum441.4 hp
Ave TQ (3,000-6,500):dum485.4 lb-ft
Tq @ 4,000 RPM:dum477 lb-ft

Cam#3
Lift:dum.647in/.612ex
Duration @ .050:dum235 in/244 ex
LSA:dum111 degrees
Read Peak Power:dum573 hp @ 6,400 rpm
Peak Torque:dum526 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500):dum449.4 hp
Ave TQ (3,000-6,500):dum494.5 lb-ft
Tq @ 4,000 RPM:dum484 lb-ft

Now let me dig a little bit deeper. The 224 cam increased power all the threw the entire power curve with no loss of torque no where. Awesome cam all the way around in my opinion. The 231 cam and the 224 cam was neck to neck as far as torque goes but later in the power car the 231 starts to outshine the 224 cam. The 224 cam idles way nicer too. Almost forgot to tell you running a cam over 230 duration you'll definitely want to check PTV.
Last in the line up. The 235 cam is really meant for a weekend warrior instead of daily driver type cam. PTV becomes a really big factor running this cam. The 235 cam would need lot of gear/stall to really take advantage of the type of manners it likes. Not what I'd recommend for you.

Good luck and I hope this helps you.
Thank you so much for letting me know. i also like a noticeable lope. it make those old trucks sound scary and aggressive. is there a certain 224 cam u would recommend? on vengeance racing i see they have a 223/231 and that is the VRSC-1 cam and the VRSC-2 is 231/239. also i have heard getting a D.O.D/A.F.M Delete kit helps improve hp and torque a lot.

http://vengeanceracing.net/2010-5th-...elete-kit.html
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Old May 10, 2015 | 01:44 PM
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Originally Posted by thoff98
Thank you so much for letting me know. i also like a noticeable lope. it make those old trucks sound scary and aggressive. is there a certain 224 cam u would recommend? on vengeance racing i see they have a 223/231 and that is the VRSC-1 cam and the VRSC-2 is 231/239. also i have heard getting a D.O.D/A.F.M Delete kit helps improve hp and torque a lot.

http://vengeanceracing.net/2010-5th-...elete-kit.html
LOPE- any of those cams can provide a lope. It's all in the tune and lobe separation angle. I do recommend the DOD kit! I'm willing to bet the 223 cam will act just like the 224 I mentioned in the first power and makes a great driver. Tell vengeance you want the cam to have a choppy idle and they should be able to set you up the lobe separation angle to make the cam sound bigger than it actually is. The 231 cam is more so go shine when the tach is in the upper rpms.
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Old May 10, 2015 | 08:52 PM
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Originally Posted by Tuskyz28
LOPE- any of those cams can provide a lope. It's all in the tune and lobe separation angle. I do recommend the DOD kit! I'm willing to bet the 223 cam will act just like the 224 I mentioned in the first power and makes a great driver. Tell vengeance you want the cam to have a choppy idle and they should be able to set you up the lobe separation angle to make the cam sound bigger than it actually is. The 231 cam is more so go shine when the tach is in the upper rpms.
I dont quite understand what you mean with "The 231 cam is more so go shine when the tach is in the upper rpm" also when i talk to them what exactly do i tell them? like do i need every little detail or no? i also found this. http://vengeanceracing.net/2010-5th-...html#_yt_embed
when i go to buy the motor should i just get the bone stock ls3 or should i get the ls376/480?? and with upgrading the cam and getting headers will i be able to achieve over 100rwhp gain? ive seen it done on some of the vengeance racing camshafts. what other things should i add to the truck? A friend of mine also told me that i should get this for my engine? is it any good? https://www.holley.com/products/ls_p.../parts/550-610
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Old May 10, 2015 | 08:55 PM
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will the motor be dry sump or wet sump???
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Old May 10, 2015 | 09:01 PM
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Originally Posted by thoff98
I dont quite understand what you mean with "The 231 cam is more so go shine when the tach is in the upper rpm" also when i talk to them what exactly do i tell them? like do i need every little detail or no? i also found this. http://vengeanceracing.net/2010-5th-...html#_yt_embed
when i go to buy the motor should i just get the bone stock ls3 or should i get the ls376/480?? and with upgrading the cam and getting headers will i be able to achieve over 100rwhp gain? ive seen it done on some of the vengeance racing camshafts. what other things should i add to the truck? A friend of mine also told me that i should get this for my engine? is it any good? https://www.holley.com/products/ls_p.../parts/550-610
When I said the 231 cam go shine when the tach is in the upper rpm.... what I'm saying the 231 cam will make the same amount of power as the 224 to 5000 rpm then the 231 cam will really start coming alive.
Im sure vengeance have tested all those cams and can tell you which one is the best to go with on your build. Headers and cam will net you that 100rwhp but then again its all about the specs of the cam. All grinds are different..best thing to call and give those guys all the info you can.
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Old May 11, 2015 | 08:05 PM
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Originally Posted by Tuskyz28
When I said the 231 cam go shine when the tach is in the upper rpm.... what I'm saying the 231 cam will make the same amount of power as the 224 to 5000 rpm then the 231 cam will really start coming alive.
Im sure vengeance have tested all those cams and can tell you which one is the best to go with on your build. Headers and cam will net you that 100rwhp but then again its all about the specs of the cam. All grinds are different..best thing to call and give those guys all the info you can.
Okay will do! Thank man you have been a great help! I'll keep things posted as the build comes along.
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Old May 11, 2015 | 11:01 PM
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You need an educated guess on vehicle weight, transmission used, and rear axle ratio before you make a camshaft or header size decision.

If you can find an LS3 reasonable, its a great choice. But, don't count out an LQ9, LS2, or even an LS1 if the price is right.
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Old May 12, 2015 | 07:06 AM
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Originally Posted by Vito.a
You need an educated guess on vehicle weight, transmission used, and rear axle ratio before you make a camshaft or header size decision.

If you can find an LS3 reasonable, its a great choice. But, don't count out an LQ9, LS2, or even an LS1 if the price is right.
We already know the weight of the truck and we already know we're using an ls3. It's the matter of putting the part configuration together
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Old May 12, 2015 | 07:49 AM
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Originally Posted by Vito.a
You need an educated guess on vehicle weight, transmission used, and rear axle ratio before you make a camshaft or header size decision.

If you can find an LS3 reasonable, its a great choice. But, don't count out an LQ9, LS2, or even an LS1 if the price is right.

Vito..... you are exactly right.
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Old May 12, 2015 | 08:45 AM
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Originally Posted by Tuskyz28
Vito..... you are exactly right.
What transmission should I use? I was thinking of the t-56. I'm not sure if it's the right or best choice? What should I use for the rear axle ratio? I see people use 3:91 gears. And for headers I found this http://m.summitracing.com/parts/kok-21602600
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Old May 12, 2015 | 09:01 AM
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Originally Posted by thoff98
What transmission should I use? I was thinking of the t-56. I'm not sure if it's the right or best choice? What should I use for the rear axle ratio? I see people use 3:91 gears. And for headers I found this http://m.summitracing.com/parts/kok-21602600
Tranmission choice go come down to what you want and your budget.... I'm a stick guy myself but the next guy might recommend a built 4L80 with a aftermarket stall. Then you'll have a guy tell you to run a turbo 350/400 due to their price.

When choosing a gear to go in the rear you need to take your Tranmission of choice into consideration. Also the tire height and how much time the truck go spend on the highway... who knows you might plan on driving the truck a long distance state to state.

A 3.91 gear would be nice behind a 6 speed transmission... get decent gas mileage on the highway and city too with plenty of low end grunt. Nothing like having a overdrive in my opinion. I wouldn't run a 3.91 gear behind a turbo 350/400 Tranmission down the highway all the time either. There really is no best/right choice.... that's kinda be like me asking you what color do you like.... Red or blue?....
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Old May 12, 2015 | 09:09 AM
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Originally Posted by Tuskyz28
Tranmission choice go come down to what you want and your budget.... I'm a stick guy myself but the next guy might recommend a built 4L80 with a aftermarket stall. Then you'll have a guy tell you to run a turbo 350/400 due to their price.

When choosing a gear to go in the rear you need to take your Tranmission of choice into consideration. Also the tire height and how much time the truck go spend on the highway... who knows you might plan on driving the truck a long distance state to state.

A 3.91 gear would be nice behind a 6 speed transmission... get decent gas mileage on the highway and city too with plenty of low end grunt. Nothing like having a overdrive in my opinion. I wouldn't run a 3.91 gear behind a turbo 350/400 Tranmission down the highway all the time either. There really is no best/right choice.... that's kinda be like me asking you what color do you like.... Red or blue?....
I won't be on the highway much. Only when I go to truck meets that are like 1-2hrs away. The whole idea of the truck is that when I go up to a light and a guy is revving his engine to race. I can really show him what this truck has. I like the idea of stick but the way I'm learning to drive is automatic. So I'm just not sure for transmission and what to do. Im slowly learning my way around cars so that's why I'm confused on what to choose.
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