Re: 1970 C10 LWB "Blu"
 

Very nice truck!!

Re: 1970 C10 LWB "Blu"
 

Thanks Rob. I finalized the DBW adapter bracket yesterday as well and put a quick coat of paint on it yesterday. Had to notch it for the taillight wiring plug but looks like it should work nicely.

Thanks Mike.

Re: 1970 C10 LWB "Blu"
 

Looks great John. Keep up the good work. Looking forward to seeing it all done. Do you plan on having it road worthy this year?

Re: 1970 C10 LWB "Blu"
 

Thanks. I would love to get it back on the road this year but the way the engine build keeps escalating, finances may make it difficult to finish in time. I'm paying as I'm going along and have rapidly funneled my designated radiator/steering/harness money into the engine.

Re: 1970 C10 LWB "Blu"
 

Got my DBW accelerator pedal with the Hart_Rod supplied bracket mounted today. I'll have to find a good spot where I can mount the TAC module.

http://i780.photobucket.com/albums/y...psslxzqi6f.jpg

Re: 1970 C10 LWB "Blu"
 

Awesome! Good to see an update

Re: 1970 C10 LWB "Blu"
 

Thanks Chuck. I'm trying to do what I can while the block and heads are out getting their magic. I'm very, VERY anxious to at least get the engine and transmission back in for good so I can reassemble the interior, get the front clip back on and do my underbed fuel tank.

Re: 1970 C10 LWB "Blu"
 

I got my vintage air main section assembled and installed in the truck.

http://i780.photobucket.com/albums/y...pshgcvhuzw.jpg

http://i780.photobucket.com/albums/y...pskiqfapjl.jpg

Turns out I installed the blower motor (round) cap on backwards... Didn't notice until I was looking at hardware assembly on the big flat cover. Painted and caulked so its too late now. I used a stainless button head screw on it too which now I wish I didn't (since everything else is black). I'll have to use some black touch up paint on it.

I eliminated all the self-tapping screws on the flat cover and replaced them with flat black button head 1/2-20 bolts. Painted the two 1/2-20 bolts that support the unit inside to tone them down a bit. The hardware vintage air supplies just looks cheap. My firewall is completely full of holes not from original equipment/harnesses that are no longer there. Its going to have to wait to get cleaned up and smoothed properly for another time. I hate to think of the can of worms I will open up if I start spiffing it up now. The dang cab will probably come off the frame and I'll get sucked into doing a full frame off.

http://i780.photobucket.com/albums/y...ps6pz7diuf.jpg

Re: 1970 C10 LWB "Blu"
 

Looks great John, with the necessary working liquid the install went smoothly :lol: :mm:

Re: 1970 C10 LWB "Blu"
 

Thanks Larry. It took two beers and one cup of coffee to finish (the beer was making me sleepy so I needed the coffee..... it was kind of chilly in the garage once I turned off the heat too).

Re: 1970 C10 LWB "Blu"
 

:lol: I feel the pain :lol:

Re: 1970 C10 LWB "Blu"
 

Didn't want to turn on the heat in the garage for just a little bit of work so brought some stuff inside. Converted my control panel over to the vintage air controls. Went OK but I hope it will be more durable than it looks.

http://i780.photobucket.com/albums/y...psvkx7klec.jpg

http://i780.photobucket.com/albums/y...ps1gviylfk.jpg

Re: 1970 C10 LWB "Blu"
 

You running your fan controls off ls pcm or what?

Re: 1970 C10 LWB "Blu"
 

Not sure yet. Going to jump into the harness and controls after I have the engine build sorted out. I don't think my brain can handle much more right now.

Re: 1970 C10 LWB "Blu"
 

Painless makes nice relay kits for stuff like that if you don't want to build your own. Something like this will make it pretty easy. This way you can have tuner still keep AC rpm adjustment on and things like that so it's drives nice and idles nice with AC on and also will have the high rpm shut off feature to protect your compressor.
http://www.painlessperformance.com/webcat/30109

Re: 1970 C10 LWB "Blu"
 

I just realized that my pcm will not have fan controls as the donor truck had an engine driven fan. I guess I will have to go off of temp switches/relays and tie the A/C in there.

Re: 1970 C10 LWB "Blu"
 

Following. Great work!

Re: 1970 C10 LWB "Blu"
 

You can have your ecm reflashed for fan controls. Mine was also a mechanical fan with clutch and I converted to 2 electric fans controlled by ecm .

Re: 1970 C10 LWB "Blu"
 

Yup.

Re: 1970 C10 LWB "Blu"
 

Yes, I did see that I could add fan outputs to my PCM harness last night on lt1swap.com. I believe there is an AC on/request signal input too that I should be able to wire in to tie in the vintage air. Need to do something more research but looks good so far. Thanks gents.

Re: 1970 C10 LWB "Blu"
 

Thanks.

Re: 1970 C10 LWB "Blu"
 

That came out nice! You can change the DBW pedal pad to a 71/72 pad fairly easily. Here's one with the CST trim on it.

Re: 1970 C10 LWB "Blu"
 

That looks good Rob. I spent the extra money to get a new pedal assembly too- the used stuff I saw looked too used to put in the truck.

Where did you mount the TAC module on your hot-rod bus?

Re: 1970 C10 LWB "Blu"
 

I talked with Lt1.com about ac request also. I was told on dbw setup ac request doesn't need to be setup only dbc need that. My neighbor has dbw with no ac request.

Re: 1970 C10 LWB "Blu"
 

I know that the pcm will automatically bump up the idle when it senses the load change but I think I need the AC request to turn the fans on and off. Your neighbor might have controls for his fans independent of the PCM?

Re: 1970 C10 LWB "Blu"
 

Thanks John. Due to the way my harness was laid out (Speartech), I mounted my tach module underneath my computer on the core support.

Re: 1970 C10 LWB "Blu"
 

The TAC (throttle control module?) way up there? Dang... that's a long wire extension...

Re: 1970 C10 LWB "Blu"
 

Yes it is....:lol:

Re: 1970 C10 LWB "Blu"
 

I can't wait to see how this turns out. Subscribed

Re: 1970 C10 LWB "Blu"
 

that makes two of us!

Re: 1970 C10 LWB "Blu"
 

3

(This build has inspired me....actually, I blame my emptying pocketbook on you too!)

Re: 1970 C10 LWB "Blu"
 

LOL. I have enough bad influences on here myself. Its funny to find out I am one too.

Re: 1970 C10 LWB "Blu"
 

Yes my neighbor has it setup independent from the pcm for ac fan control.

Re: 1970 C10 LWB "Blu"
 

Not much progress on the build lately- mostly waiting for parts to come in. A few delays as my engine gets bumped at the shop for professional race team customers.

Block is nearly finished and ready to go. It got the works- it was hot tanked a few times to clean out the dexcool mess. Magnafluxed, sonic tested, bored and finish honed to piston size, align bored mains, cam journals align honed. Still need the front machined to fit the cam chain tensioner since they didn't come on truck engines (at least not on this LQ4). We're using all ARP fasteners.

http://i780.photobucket.com/albums/y...psclcpoc9d.jpg

http://i780.photobucket.com/albums/y...psyjrm07sm.jpg

http://i780.photobucket.com/albums/y...psnaqadvrx.jpg

Re: 1970 C10 LWB "Blu"
 

Rotating assembly is forged Mahle pistons, forged callies crank and compstar rods. The short block is being set up to hold 1,000 hp all day long. Overkill for sure but will last forever pushing the planned 600 at the flywheel.

http://i780.photobucket.com/albums/y...psb4adghpt.jpg

http://i780.photobucket.com/albums/y...ps1aji6jki.jpg

http://i780.photobucket.com/albums/y...psqhqeyfw1.jpg

http://i780.photobucket.com/albums/y...ps4mjv61pr.jpg

Intake is going to be a FAST 102 LSXRT truck intake (got a great deal on this shop mule) with most likely a Nick Williams throttle body.

http://i780.photobucket.com/albums/y...psvapip5iu.jpg

The final balancing of the rotating assembly should be done by the end of next week. Then we're cc'ing the pistons so we can tell Advanced Induction what to finish mill the heads to. Then we'll check our valve clearance and get a cam grind figured out with comp cams. Should be around .640ish for lift.

None of this is happening fast but it should be worth the wait when its done.

Re: 1970 C10 LWB "Blu"
 

I spent a few hours at the engine shop yesterday.

The crank got temporarily installed to cc the pistons. We were able to let the cylinder head shop know how much we wanted milled off to finish the heads to get our target static CR.

http://i780.photobucket.com/albums/y...psqqa7nzni.jpg

The reluctor wheel got installed (still needs to be welded on).

http://i780.photobucket.com/albums/y...pso0ax7h4j.jpg

http://i780.photobucket.com/albums/y...psvteeimhn.jpg

And I spent some time doing my rocker arm trunion upgrade (eliminates the factory needle bearings).

http://i780.photobucket.com/albums/y...pszz13kvks.jpg

Before I left I also hung out a while and watched Rick do a balance on a rotating assembly. I knew the theory of it but haven't watched it being done before.

http://i780.photobucket.com/albums/y...psvdfmmhye.jpg

http://i780.photobucket.com/albums/y...psqwrdwkcr.jpg

http://i780.photobucket.com/albums/y...psgy7y5exk.jpg

Re: 1970 C10 LWB "Blu"
 

Thanks for sharing.. Some cool pics too :mm:

Re: 1970 C10 LWB "Blu"
 

My crank/rotating assembly got done this afternoon. My guy got it dialed in within 2 grams (1%, which is standard for most machine shops, would have been 17 grams). I'm going to run an ATI dampener as well so this thing ought to be smooooth.....

http://i780.photobucket.com/albums/y...psmbhnbezv.jpg

Re: 1970 C10 LWB "Blu"
 

Thanks Larry. I wish I had your level of progress to report. I'm probably going to be on the sidelines this year.

Re: 1970 C10 LWB "Blu"
 

Looks like a lot of progress