1968 C-10 lsx conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

oscareltemblo · 04-21-2006, 12:35 AM

Hello I'm doing the famous lsx conversion and I started today,I just pulled out the 327 and th400 to put in the 6.0 and 4L80E that I bought at a junk yard nearby with all accesories and harness with the cpu for $3000.00 the motor and trans is from a 2005 express van. I'm keeping the fuel tank in place for now untill I get going cuase I'm going to buy a fuel tank from a member here that's from michigan he is Kas68c10. I'll post some pics later.

chevy_fatman · 04-21-2006, 01:02 AM

That sounds like a great project!

oscareltemblo · 04-21-2006, 01:05 AM

Thanks Pual this site has been really helpfull it's a learning experience all the time I'm on here.

68 short step · 04-21-2006, 08:16 AM

cool.thats gonna be neat.

shifty · 04-21-2006, 01:50 PM

have fun. i have links to two things in my signature - one is a thread i'm doing on my swap @ ls1tech, another has pictures of all of my truck mods in progress (or already done) including pictures of the swap. they might be of help.

oscareltemblo · 04-21-2006, 08:29 PM

Yeah, thanks shifty I seen your links they rock Ive took a few Ideas from you and put them to my use.

oscareltemblo · 04-22-2006, 02:15 AM

I have a small problem well many but, this one. The engine I brought has the power steering pump but no resevoir can I make one or do I need the original.

72armyswbtruck · 04-22-2006, 12:09 PM

Have fun with this swap

oscareltemblo · 04-22-2006, 03:59 PM

An other problem today as I'm preping the engine and cleaning it I decide to test it so try to turn the crank pully with my socket. So I turn it a little and then no budge I mean it wouldn't go past a 1/4 turn on either way does this mean the engine is bad?

oscareltemblo · 04-22-2006, 03:59 PM

I still have 20 days warranty.

Injected68LS1 · 04-22-2006, 04:05 PM

If you left the spark plugs in when you tried turning the engine over, the compression will prevent you from turning it over. Just take out the spark plugs, then turn it over. It never hurts to look down the cylinders as you turn it over for extra confidence.

Chevrolet4x4s · 04-22-2006, 04:34 PM

Whats gonna happen with the 327?
Good luck with the swap
Shane

oscareltemblo · 04-22-2006, 04:37 PM

I sold the 327 and trans.

**yote1234** · 04-22-2006, 04:52 PM

well? is it froze? hope not...

68 short step · 04-22-2006, 05:30 PM

Quote:

Originally Posted by yote1234

well? is it froze? hope not...

we wanna know ,and we sure hope not.

oscareltemblo · 04-22-2006, 09:54 PM

It's not froze I can turn a little but after I hear air suction it stops like if there was a bump I tried it with extra pole for leverage and won't budge when the compression is high shouldn't it push back like a spring?

oscareltemblo · 04-22-2006, 09:55 PM

Tommarrow I'll take the spark plugs off as a last resort if not it's going back to the Junk yard where I got it from.

oscareltemblo · 04-23-2006, 08:28 PM

I took out all the plugs it's still the same wtf what can it be?

gringoloco · 04-23-2006, 08:40 PM

Don't wanna rain on your parade, but it sounds to me like the motor may have hydro-locked at some point. When this happens, the connecting rods bend and you get interference problems between the rod/piston or rod/crank. I could be wrong.

You could also have dropped a valve. That could stop a piston on the upstroke. I say pull the valve covers and oil pan and look for anything abnormal.

Some motors just have tight spots where they are not as easy to roll over. try a little more leverage, just not so much that you break anything. The harmonic balancer bolt can take it. They are torqued to 450 ft/lbs or so.

-Chris

Injected68LS1 · 04-23-2006, 08:45 PM

Stupid question; Is the transmission connected to your engine?

oscareltemblo · 04-23-2006, 09:07 PM

no it's not

Injected68LS1 · 04-23-2006, 09:26 PM

I told you it was a stupid question! I was going to suggest taking it out of gear. haha.

I hope you get it figured out. I really can't think of anything that would prevent it from turning over on a good engine. There are many things that could possibly be wrong inside. Good luck!

oscareltemblo · 04-23-2006, 09:53 PM

Thanks anyway tomarrow it goes back what a pain it's going to be .

LUV2XCLR8 · 04-23-2006, 10:15 PM

Pic's ???

68 short step · 04-23-2006, 10:20 PM

dang!!!! i was affraid of that.
just cause, whats the oil look like?

04-21-2006, 12:35 AM	#1
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	1968 C-10 lsx conversion Hello I'm doing the famous lsx conversion and I started today,I just pulled out the 327 and th400 to put in the 6.0 and 4L80E that I bought at a junk yard nearby with all accesories and harness with the cpu for $3000.00 the motor and trans is from a 2005 express van. I'm keeping the fuel tank in place for now untill I get going cuase I'm going to buy a fuel tank from a member here that's from michigan he is Kas68c10. I'll post some pics later. Last edited by oscareltemblo; 06-14-2007 at 12:23 AM.

04-21-2006, 01:02 AM	#2
chevy_fatman Where's my beer? Join Date: Aug 2002 Location: I live in the state of denial.... Posts: 5,620	Re: 1968 C-10 lsx conversion That sounds like a great project! __________________ Paul How do you make the invisible, visible?.........You take it away.

04-21-2006, 01:05 AM	#3
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion Thanks Pual this site has been really helpfull it's a learning experience all the time I'm on here. __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-21-2006, 08:16 AM	#4
68 short step Senior Member Join Date: Aug 2005 Location: tulsa OK Posts: 3,070	Re: 1968 C-10 lsx conversion cool.thats gonna be neat.

04-21-2006, 01:50 PM	#5
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: 1968 C-10 lsx conversion have fun. i have links to two things in my signature - one is a thread i'm doing on my swap @ ls1tech, another has pictures of all of my truck mods in progress (or already done) including pictures of the swap. they might be of help. __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

04-21-2006, 08:29 PM	#6
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion Yeah, thanks shifty I seen your links they rock Ive took a few Ideas from you and put them to my use. __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844 Last edited by oscareltemblo; 06-04-2007 at 09:50 PM.

04-22-2006, 02:15 AM	#7
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion I have a small problem well many but, this one. The engine I brought has the power steering pump but no resevoir can I make one or do I need the original. __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-22-2006, 12:09 PM	#8
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,033	Re: 1968 C-10 lsx conversion Have fun with this swap __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-22-2006, 03:59 PM	#9
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion An other problem today as I'm preping the engine and cleaning it I decide to test it so try to turn the crank pully with my socket. So I turn it a little and then no budge I mean it wouldn't go past a 1/4 turn on either way does this mean the engine is bad? __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-22-2006, 03:59 PM	#10
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion I still have 20 days warranty. __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-22-2006, 04:05 PM	#11
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	Re: 1968 C-10 lsx conversion If you left the spark plugs in when you tried turning the engine over, the compression will prevent you from turning it over. Just take out the spark plugs, then turn it over. It never hurts to look down the cylinders as you turn it over for extra confidence. __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

04-22-2006, 04:34 PM	#12
Chevrolet4x4s Registered User Join Date: Nov 2005 Location: WV Posts: 227	Re: 1968 C-10 lsx conversion Whats gonna happen with the 327? Good luck with the swap Shane __________________ 1993 K1500 350 5 speed 1985 K10 Silverado Vortec 406 5 speed (in body shop) "I been drivin' this '85 pickup truck Them buddies of mine call it a bucket of rust She's a little beat up but she still runs like the wind Yeah, kinda like me I been banged and bruisedBeen around the block a time or two But I'm runnin' like new goin' places I never been No, I ain't broke I'm just broken in" 1963 Dodge Townwagon(its amazng what 30 years and zero miles will do to a vehicle ) Member#20327

04-22-2006, 04:37 PM	#13
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion I sold the 327 and trans. __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-22-2006, 04:52 PM	#14
yote1234 Senior Member Join Date: Feb 2003 Location: Gold Canyon Arizona Posts: 4,407	Re: 1968 C-10 lsx conversion well? is it froze? hope not... __________________ 1971 K5 CST Blazer 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey

04-22-2006, 09:54 PM	#16
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion It's not froze I can turn a little but after I hear air suction it stops like if there was a bump I tried it with extra pole for leverage and won't budge when the compression is high shouldn't it push back like a spring? __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844



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04-22-2006, 09:55 PM	#17
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion Tommarrow I'll take the spark plugs off as a last resort if not it's going back to the Junk yard where I got it from. __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-23-2006, 08:28 PM	#18
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion I took out all the plugs it's still the same wtf what can it be? __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-23-2006, 08:40 PM	#19
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: 1968 C-10 lsx conversion Don't wanna rain on your parade, but it sounds to me like the motor may have hydro-locked at some point. When this happens, the connecting rods bend and you get interference problems between the rod/piston or rod/crank. I could be wrong. You could also have dropped a valve. That could stop a piston on the upstroke. I say pull the valve covers and oil pan and look for anything abnormal. Some motors just have tight spots where they are not as easy to roll over. try a little more leverage, just not so much that you break anything. The harmonic balancer bolt can take it. They are torqued to 450 ft/lbs or so. -Chris __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

04-23-2006, 08:45 PM	#20
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	Re: 1968 C-10 lsx conversion Stupid question; Is the transmission connected to your engine? __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

04-23-2006, 09:07 PM	#21
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion no it's not __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-23-2006, 09:26 PM	#22
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	Re: 1968 C-10 lsx conversion I told you it was a stupid question! I was going to suggest taking it out of gear. haha. I hope you get it figured out. I really can't think of anything that would prevent it from turning over on a good engine. There are many things that could possibly be wrong inside. Good luck! __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

04-23-2006, 09:53 PM	#23
oscareltemblo Registered User Join Date: Apr 2006 Location: Allen Park, MI Posts: 280	Re: 1968 C-10 lsx conversion Thanks anyway tomarrow it goes back what a pain it's going to be . __________________ My Official build thread http://67-72chevytrucks.com/vboard/s...d.php?t=196844

04-23-2006, 10:15 PM	#24
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,468	Re: 1968 C-10 lsx conversion Pic's ??? __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

04-23-2006, 10:20 PM	#25
68 short step Senior Member Join Date: Aug 2005 Location: tulsa OK Posts: 3,070	Re: 1968 C-10 lsx conversion dang!!!! i was affraid of that. just cause, whats the oil look like?

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