Senior Project Build - Page 17 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mike nutt · 01-20-2009, 07:10 AM

as far as your motor being an lq4 or lq9 , the lq4 has a slight dish in the piston and the lq9 is a flat top. mine is an lq9. i used the 317 heads which is the same as the ls6 head with a slighty larger combustion chamber (71.06cc vs 64.45cc). i had my head deck and changed to the ls6 valve springs . the later lq4 and all lq9's have the same cam as the ls1. according to the machine shop should yeald a 10.8 compression ratio,

LuckyHenriksen · 01-20-2009, 11:00 AM

Looks good Mike, I believe mine are flat tops. So I should have stronger rods eh

67ChevyRedneck · 01-20-2009, 11:37 AM

Quote:

Originally Posted by LuckyHenriksen

I was wishing I could just plug the holes, but they aren't threaded. It would look cleaner than a hose loop. I think I have to get them pressed out at a machine shop, which seems like a waste of time and money to me. I guess a loop is my answer.

The one in the oil pan isn't threaded? Seriously?

67ChevyRedneck · 01-20-2009, 11:46 AM

Also, this thing is a vacuum line that connects to the throttle body. Not sure what it does, probably has to do with idle/start up/advance. Now, on say a 350 with a carb, there would be a vaccum line to run the advance on an HEI from the carb to the HEI. This line probably serves the same purpose on a FI TB vehicle. I'm not sure how that works with no distributor? Will your set up keep the coil packs? And if so, what will "run" them.

I'm very interested in this swap, as computers scare the crap out of me, and eliminating the computer eliminates lots of wiring, and the huge expense of getting it reprogrammed and tuned.

You need to figure out how you're going to get a PCV set up and how your going to vent the motor. I could swear I recently saw a LS motor with an old school filter style vent where the oil fill is, that would take care of that, but you probably need to leave the PCV on the DS.

SCIV · 01-20-2009, 03:00 PM

According to this picture, it is an LQ4.

Quote:

Originally Posted by LuckyHenriksen

No worries though, because I am using the same motor! I am going to through 10-15 psi at whether it likes it or not!

LuckyHenriksen · 01-20-2009, 08:55 PM

Quote:

Originally Posted by 67ChevyRedneck

The one in the oil pan isn't threaded? Seriously?

No the one in the pan is, I was talking about the heater outlets

LuckyHenriksen · 01-20-2009, 09:00 PM

Damn. Oh well LQ4's are great too. I can't wait to see 15 PSI through yours SCIV! And 67redneck, I am using the MSD ignition controller that runs the stock coils. From what I have read, it does a marvelous job, and you can make custom timing curves using a lap top. And on the PCV, I will have the filter in the oil fill that you speak of. A few pages back I posted a picture of a carb 6.0 in an IROC camaro, it has the breather setup that I am going to run.

LuckyHenriksen · 01-20-2009, 09:01 PM

Quote:

Originally Posted by mike nutt

as far as your motor being an lq4 or lq9 , the lq4 has a slight dish in the piston and the lq9 is a flat top. mine is an lq9. i used the 317 heads which is the same as the ls6 head with a slighty larger combustion chamber (71.06cc vs 64.45cc). i had my head deck and changed to the ls6 valve springs . the later lq4 and all lq9's have the same cam as the ls1. according to the machine shop should yeald a 10.8 compression ratio,

Mike, how did you mask the deck to keep the motor so clean while you painted?

LuckyHenriksen · 01-20-2009, 09:57 PM

So I traded my 317 heads, truck intake, and some cash for a set of L92's, but one cylinder dropped a valve. The motor was out of a 2007 Escalade with 7k on it. The whole motor was pulled under warranty. The machine shop quote to fix it is $110. While they are in the machine shop, is there anything I can have done to help increase HP? I have been told that I can mill a little off to bump up the compression, is this a good idea? And is there any porting or polishing that can be done? Oh, and do the pushrods from the 317 heads fit the L92's?

texanidiot25 · 01-20-2009, 10:09 PM

Quote:

Originally Posted by LuckyHenriksen

I was wishing I could just plug the holes, but they aren't threaded. It would look cleaner than a hose loop. I think I have to get them pressed out at a machine shop, which seems like a waste of time and money to me. I guess a loop is my answer.

See my wonder is that if you plug it will it affect coolant flow to some spots, or would that plug hold uner the water pressure? Unless you were to weld a plug in.

mike nutt · 01-20-2009, 10:45 PM

Quote:

Originally Posted by LuckyHenriksen

Mike, how did you mask the deck to keep the motor so clean while you painted?

Lucky
when i painted mine ,i bolted the heads down with a couple of bolts , then taped the heads up .
are you going to run a turbo or belt driven supercharger ? the engine i'm using had a supercharger with too much boost , it busted two pistons and spun the balancer on the crankshaft. if you gonna run a belt driven supercharger you need to have the crank and balancer keyed and forged pistons would be a big help for the motor to last .

LuckyHenriksen · 01-21-2009, 12:27 AM

Cool Mike, but my plans of forced induction have been placed aside due to budget concerns. I am just going to run NA. I will keep that in mind in the future though. That is a good idea, I was thinking about tracing my heads to make a couple of cardboard covers to keep paint out.

LuckyHenriksen · 01-21-2009, 03:34 AM

Got the valley cover off

And have some more questions.

When I use the MSD box do I reuse any of the stock harness from the coil packs?

And I have two flexplates, one from my motor and another from the 2007 caddy motor. They seem to be exactly the same, is one better?

And I have a couple coats of paint on the valve covers now, and also on the valley pan.

LuckyHenriksen · 01-22-2009, 12:55 AM

Finally got the fan off. After I hacked through several of the fins to get some leverage and had some help holding it down. Oh and it turned out to be regular thread, not reverse

I hacked the oil fill tube and ground down an old breather to fit. It looks alot better than the stock tube, and will be my PCV.

And my painted valve covers look pretty good I think

And does anyone know what these sensors do? Do I need them?

LuckyHenriksen · 01-22-2009, 12:57 AM

Oh and the pictures are kinda blurry cuz I took them with my phone

67ChevyRedneck · 01-22-2009, 02:23 AM

The short stubby one looks like the Camshaft Position Sensor. The tall one is the oil pressure switch.

http://shop.advanceautoparts.com/Pro...pe=417&PTSet=A

http://shop.advanceautoparts.com/Pro...pe=985&PTSet=A

I'm not 100%, but pretty sure, hopefully someone can confirm my info.

Not sure what to do about the cam sensor, but you should be able to remove the oil pressure switch and replace it with a mechanical gauge one.

SCIV · 01-22-2009, 10:54 AM

You are correct on the sensors.

Does the MSD need the cam signal? I dunno much about the MSD setup.

LuckyHenriksen · 01-22-2009, 11:34 AM

Ya I just spread the MSD stuff out on the floor, it had a plug for the cam sensor. I will pull the tall one off and see what it looks like

SCIV · 01-22-2009, 12:31 PM

Quote:

Originally Posted by LuckyHenriksen

Ya I just spread the MSD stuff out on the floor, it had a plug for the cam sensor. I will pull the tall one off and see what it looks like

Yeah, I need to figure out what adapter I need to swap that sensor with the Autometer one. Same for the water temp.

LuckyHenriksen · 01-22-2009, 10:32 PM

I would love to know what you find out about making the temp and oil sensors work

LuckyHenriksen · 01-23-2009, 12:41 AM

The last thing in my way is the balancer. What do I need to get it off? The crank bolt took a couple of big cheater bars and lots of grunting.

Here are the ever important numbers! If only old blocks had this kind of description on them

texanidiot25 · 01-23-2009, 12:54 AM

You need the strength of Chuck Norris, and the patience of Clint Eastwood.

LuckyHenriksen · 01-23-2009, 01:03 AM

SCIV · 01-23-2009, 11:27 AM

Quote:

Originally Posted by LuckyHenriksen

I would love to know what you find out about making the temp and oil sensors work

I am keeping the stock sensor in the driver side head for the computer to reference and control the electric fans. I am pulling the plug in the pass. side head for my gauge.

Oil pressure I am pulling the stock sensor & replacing with the gauge sensor.

That is the plan so far, now I just need to figure out what kind of threaded adapters to use!

For the balancer, you need a 3 jaw puller to get it off. Slow and patient because you can break the tabs off the balancer.

LuckyHenriksen · 01-23-2009, 07:49 PM

Thanks SCIV. I called the machine shop today and they said they couldn't find a valve to fit my head, and that they were too busy to look for one. Does this sound like a load to you or is it just me?

On a side note, does anybody know where to get a new valve and all the pieces for a L92 head?

01-20-2009, 07:10 AM	#401
mike nutt 69fatmotor Join Date: Oct 2005 Location: bama Posts: 660	Re: Senior Project Build as far as your motor being an lq4 or lq9 , the lq4 has a slight dish in the piston and the lq9 is a flat top. mine is an lq9. i used the 317 heads which is the same as the ls6 head with a slighty larger combustion chamber (71.06cc vs 64.45cc). i had my head deck and changed to the ls6 valve springs . the later lq4 and all lq9's have the same cam as the ls1. according to the machine shop should yeald a 10.8 compression ratio, Last edited by mike nutt; 02-22-2009 at 08:48 PM.

01-20-2009, 11:00 AM	#402
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Looks good Mike, I believe mine are flat tops. So I should have stronger rods eh __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-20-2009, 11:46 AM	#404
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Senior Project Build Also, this thing is a vacuum line that connects to the throttle body. Not sure what it does, probably has to do with idle/start up/advance. Now, on say a 350 with a carb, there would be a vaccum line to run the advance on an HEI from the carb to the HEI. This line probably serves the same purpose on a FI TB vehicle. I'm not sure how that works with no distributor? Will your set up keep the coil packs? And if so, what will "run" them. I'm very interested in this swap, as computers scare the crap out of me, and eliminating the computer eliminates lots of wiring, and the huge expense of getting it reprogrammed and tuned. You need to figure out how you're going to get a PCV set up and how your going to vent the motor. I could swear I recently saw a LS motor with an old school filter style vent where the oil fill is, that would take care of that, but you probably need to leave the PCV on the DS. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 01-20-2009 at 11:51 AM.

01-20-2009, 09:00 PM	#407
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Damn. Oh well LQ4's are great too. I can't wait to see 15 PSI through yours SCIV! And 67redneck, I am using the MSD ignition controller that runs the stock coils. From what I have read, it does a marvelous job, and you can make custom timing curves using a lap top. And on the PCV, I will have the filter in the oil fill that you speak of. A few pages back I posted a picture of a carb 6.0 in an IROC camaro, it has the breather setup that I am going to run. __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-20-2009, 09:57 PM	#409
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build So I traded my 317 heads, truck intake, and some cash for a set of L92's, but one cylinder dropped a valve. The motor was out of a 2007 Escalade with 7k on it. The whole motor was pulled under warranty. The machine shop quote to fix it is $110. While they are in the machine shop, is there anything I can have done to help increase HP? I have been told that I can mill a little off to bump up the compression, is this a good idea? And is there any porting or polishing that can be done? Oh, and do the pushrods from the 317 heads fit the L92's? __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-21-2009, 12:27 AM	#412
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Cool Mike, but my plans of forced induction have been placed aside due to budget concerns. I am just going to run NA. I will keep that in mind in the future though. That is a good idea, I was thinking about tracing my heads to make a couple of cardboard covers to keep paint out. __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here Last edited by LuckyHenriksen; 01-21-2009 at 03:39 AM.

01-21-2009, 03:34 AM	#413
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Got the valley cover off And have some more questions. When I use the MSD box do I reuse any of the stock harness from the coil packs? And I have two flexplates, one from my motor and another from the 2007 caddy motor. They seem to be exactly the same, is one better? And I have a couple coats of paint on the valve covers now, and also on the valley pan. __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-22-2009, 12:55 AM	#414
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Finally got the fan off. After I hacked through several of the fins to get some leverage and had some help holding it down. Oh and it turned out to be regular thread, not reverse I hacked the oil fill tube and ground down an old breather to fit. It looks alot better than the stock tube, and will be my PCV. And my painted valve covers look pretty good I think And does anyone know what these sensors do? Do I need them? __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here Last edited by LuckyHenriksen; 01-22-2009 at 12:56 AM.

01-22-2009, 12:57 AM	#415
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Oh and the pictures are kinda blurry cuz I took them with my phone __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-22-2009, 02:23 AM	#416
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Senior Project Build The short stubby one looks like the Camshaft Position Sensor. The tall one is the oil pressure switch. http://shop.advanceautoparts.com/Pro...pe=417&PTSet=A http://shop.advanceautoparts.com/Pro...pe=985&PTSet=A I'm not 100%, but pretty sure, hopefully someone can confirm my info. Not sure what to do about the cam sensor, but you should be able to remove the oil pressure switch and replace it with a mechanical gauge one. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 01-22-2009 at 02:41 AM.

01-22-2009, 10:54 AM	#417
SCIV Registered User Join Date: Sep 2008 Location: Georgetown, Texas Posts: 170	Re: Senior Project Build You are correct on the sensors. Does the MSD need the cam signal? I dunno much about the MSD setup. __________________ '68 Chevrolet Short Step 6.0 L + 91mm + TH400 + 9" + 4-Link

01-22-2009, 11:34 AM	#418
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Ya I just spread the MSD stuff out on the floor, it had a plug for the cam sensor. I will pull the tall one off and see what it looks like __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-22-2009, 10:32 PM	#420
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build I would love to know what you find out about making the temp and oil sensors work __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-23-2009, 12:41 AM	#421
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build The last thing in my way is the balancer. What do I need to get it off? The crank bolt took a couple of big cheater bars and lots of grunting. Here are the ever important numbers! If only old blocks had this kind of description on them __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-23-2009, 12:54 AM	#422
texanidiot25 Eat My Rust Join Date: Jan 2007 Location: Cypress, Texas Posts: 3,362	Re: Senior Project Build You need the strength of Chuck Norris, and the patience of Clint Eastwood.



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01-23-2009, 01:03 AM	#423
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

01-23-2009, 07:49 PM	#425
LuckyHenriksen Registered User Join Date: Oct 2007 Location: Sherwood Oregon Posts: 1,908	Re: Senior Project Build Thanks SCIV. I called the machine shop today and they said they couldn't find a valve to fit my head, and that they were too busy to look for one. Does this sound like a load to you or is it just me? On a side note, does anybody know where to get a new valve and all the pieces for a L92 head? __________________ 1968 Yenko Chevy LWB 6.0L/TH400 3/4 Drop Senior Project Build Thread Here

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