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1969 C10 - LS Swap

Old Mar 26, 2021 | 05:59 PM
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Default 1969 C10 - LS Swap

Ok so I trolled a bit in the other post for what Stage cam, but i did have legitimate questions on cam selection for vehicle usage.

I picked up a 1969 C10 about 3 years ago now, just before getting married. Fiancée was working out of town, I caught a redeye flights to OKC to go pick the truck up.

I had business in OKC anyway as my camaro had some exhaust parts at Jethot that were ready to ship. Figure save on some shipping and knock out two birds with one stone.

Got a rental and headed down to Duncan, OK with my Jethot parts in the trunk to see the C10 for the first time.
Attachment 713063

Truck is pretty basic; 1969 AC cab, with a 67 front and filled signals (looks like a 67). Has a 350/700R4 with an old smog era serpentine setup and what looks like a first gen Vintage Air system (all mechanical).
Attachment 713064

Attachment 713065

A deal was done, Jethot stuff went in the bed and i started the drive back to Houston, unbeknownst to my wife and my poor dogs waiting on me to return to let them out of the house! We're on a time crunch!
Attachment 713066

Attachment 713067

Attachment 713068

Made it all the way, through some traffic in DFW but with AC blowing cool and cruising at 70-75 i was getting 18mpg! Not too bad and considering I had almost no history on this truck, the fact i made it home with no issues on a 400mi road trip day one is nothing short of a miracle!

Tucked away at home safe and sound.
1969 C10 - LS Swap-mtcnqut.jpg

Proceeded to drive the truck and do "truck things" with it for the next 2-3 years.
Credit to Big Bronco for driving the C10 in this shot.
1969 C10 - LS Swap-hpounvv.jpg

TX2K19
1969 C10 - LS Swap-urcljsg.jpg

1969 C10 - LS Swap-nrgmhnk.jpg

Truck things:
1969 C10 - LS Swap-pykxqzb.jpg

As it sits, i've put probably 8k miles on the truck in 3 years. some off time while it's in storage working on camaro (tight garage fitment to work on one and keep the other as you see above).

I'm ready to take it another step and add some LS power and reliability!
LS Starter kit:
1969 C10 - LS Swap-xauygr2.jpg

Picked up a LS2 (190k miles) from a good friends TBSS, and the same day found a take out 4L80e from another friends 68 camaro and a NNBS truck intake. Busy Saturday for sure!

Luckily i came across some good deals on parts so have already collected a bit of the swap: Holley Swap kit, Mid Mount accessories, speed engineering headers, dakota digital gauges and modules (still on order). I have a AAW universal 22circuit kit i'll use, and some other misc parts.

Now I'm at a bit of a cross-roads. Engine needs to be bored, so stock pistons not going back in (was the original goal to save some cash). So i'm fighting an internal battle on whether to stroke it or not as i'm already doing some machine work above expected cleanup.

Contemplating a 408 build (.030 LS2, i know) and having the 243 CNC'd by local person in Houston. Cam selection as discussed in other thread, will be focused on driver performance and occasional towing. By occasional, i mean 1-2 times a year to local track (100mi round trip). Trans will likely end up a Jakes Stage 2 with Circle D converter, and looking around 3000rpm.

I'm headed offshore soon, and plan to amass more parts and make some decisions on the engine so I can put it together this summer (May is the goal). I'll be doing a short video series when I put it together with some friends and try to turn it around in a couple weeks.

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Old Mar 26, 2021 | 10:05 PM
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.030 over bore on a LS2 aluminum block? I don't think so. Most alum LS blocks can only be honed about .05 as I understand. Iron block 6.0 can be bored.
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Old Mar 27, 2021 | 01:01 AM
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Originally Posted by LS1 TJ
.030 over bore on a LS2 aluminum block? I don't think so. Most alum LS blocks can only be honed about .05 as I understand. Iron block 6.0 can be bored.
Plenty have gone over .005” hone. Maybe not ideal for boost so that changes my initial plan. But 4.020-030 is doable for NA.

Last edited by will69camaro; Mar 27, 2021 at 01:07 AM.
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Old Mar 27, 2021 | 01:06 AM
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I’ve heard of guys making 408s out of their LS2 so it must be possible to go .030”.
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Old Mar 27, 2021 | 12:42 PM
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Looks like it will be fun. How's the suspension on tha truck
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Old Mar 27, 2021 | 01:36 PM
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Originally Posted by Pro Stock John
Looks like it will be fun. How's the suspension on tha truck
Suspension is fine, nothing to write home about. That's "Phase 2" for the truck. Right now i want to get it reliable from a powertrain perspective, but the plan has always been to put it on a chassis so dont want to waste too much effort modifying the stock SWB frame.

I've been talking to RS and No Limit on chassis options for a little while and met with Rob (No Limit) at LS Fest the last couple years talking through options.

I am hoping that I get it on a chassis mid-late next year.
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Old Mar 27, 2021 | 04:38 PM
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Just FYI if you want to boost it. I did a LS2 block that I sent to RED (Race Engine Development) out in CA. They cut the cylinder liners out and then pressed in Darton sleeves. Stroked it to 427 cubes. L92 heads. Ran great.
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Old Mar 27, 2021 | 05:39 PM
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Art Morison should be on the list too. Roadster shop has their assorted line of chassis. Even their basic chassis, 10k job has good reviews.
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Old Mar 27, 2021 | 07:51 PM
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Originally Posted by Jimbo1367
Art Morison should be on the list too. Roadster shop has their assorted line of chassis. Even their basic chassis, 10k job has good reviews.
Yea I’ve looked at Art Morrison. There are zoo many different chassis. RS (Spec) and NL are the ones I narrowed it down to.

Honorable mentions to:
Art Morrison
Speedtech
TCI
SRG
Schwartz
Acme
etc etc. Lol.
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Old Mar 28, 2021 | 06:20 PM
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I like the RS ones. I never seen too much on the NL frames. I’m sure you’ll be happy with whatever you choose. I was wondering when you’d be getting to build it the C10
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Old Mar 28, 2021 | 08:11 PM
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Originally Posted by Jimbo1367
I like the RS ones. I never seen too much on the NL frames. I’m sure you’ll be happy with whatever you choose. I was wondering when you’d be getting to build it the C10
No doubt RS has a lot of name behind it, but IMO No Limit has the nicer features and price obviously. Few friends have done No Limit chassis and have nothing but positive results and opinions. No Limit is also regularly out at events beating on their parts and performing very well. Don’t see many RS cars putting their cars through the paces.

I kept it as is for 3 years. It was time for an update.
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Old Mar 29, 2021 | 03:30 AM
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Just based on real world results, it sounds like NL might be the obvious choice. Does RS even offer the 10k chassis for this truck truck? What is the cost of the NL pc?
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Old Mar 29, 2021 | 11:46 AM
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Originally Posted by Jimbo1367
Just based on real world results, it sounds like NL might be the obvious choice. Does RS even offer the 10k chassis for this truck truck? What is the cost of the NL pc?
By the time you load both frames out with options, the difference is 10-15% with RS being higher.

Spec Chassis RS starts around $11k, and NL starts around $12k.

No limit in their base chassis includes (above what RS offers base):
-Engine / trans / body mounts
-Front and rear Brakes (basic) with Lines
-Front Sway bar

This brings the base chassis to almost identical prices (if you add the options on RS).

From there, I think No Limit has better options (for my application) available.

Hardlines Fuel lines are offered as an option.
-Trailer hitch offered
-Fuel tank options are less salty ($1000 vs $2000)
-Floater Axle option

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Old Mar 29, 2021 | 02:08 PM
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Nice options. The hitch is a must. Was any of your buddy’s NL frames for a truck or car? I like RS SPEC CHASSIS but don’t know anybody personally who’s used them.

Time to get technical with your buddy’s who has NL frames and do a pros and cons of each. I have a feeling you already know it’s NL. Get it ordered. LOL
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Old Mar 29, 2021 | 02:51 PM
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All my friends with NL chassis or parts are in trucks, none in cars.

All the RS cars i know are cars....go figure.

I am definitely leaning to NL chassis and will "get it ordered' once i get over this hurdle of getting the engine/trans in it!!! One thing at a time right now. I'm not about to sink double the investment i currently have in this truck at one time. Gonna try to space it out and keep it running as long as possible inbetween.

Also, these damn stimulus and people being at home has hobbies booming i guess. Lead time on all the stuff i'm trying to get ranges from 4 to 8 weeks....
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Old Apr 6, 2021 | 02:09 PM
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Don’t be surprised it they Tell you 2to 3 MONTHS if you have anything more than normal customers.
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Old Apr 6, 2021 | 06:09 PM
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Originally Posted by Jimbo1367
Don’t be surprised it they Tell you 2to 3 MONTHS if you have anything more than normal customers.
I'm not surprised. Hell a lot of Holley stuff and Summit brand stuff got pushed and pushed and pushed. Actually just returned all my fuel line to Summit and got it from Hot Rod Fuel Hose. Nicer product and ended up a better deal anyway.
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Old Apr 7, 2021 | 03:39 AM
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Is the fuel line stuff PTFE?
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Old Apr 7, 2021 | 12:06 PM
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Originally Posted by Jimbo1367
Is the fuel line stuff PTFE?
The stuff I have now is PTFE. Went small (-6) as it'll cover what i need for now, but the company has larger sizes available (up to -10).
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Old Apr 7, 2021 | 02:04 PM
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William,
did you ever get a chance to check out the EARLs UltraPro PTFE fittings and hoses? I don’t think I ever heard of the brand you mentioned.
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