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#1 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: LS engine swap info
Added some links
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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#2 |
Registered User
Join Date: Feb 2009
Location: Hampton, GA
Posts: 76
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Thanks for the info.
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![]() 1972 Chevy Cheyenne LWB 350 engine TH400. |
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#3 |
Senior Member
Join Date: Aug 2002
Location: Valley Center KS
Posts: 3,525
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Re: LS engine swap info
If you want to do your own computer tuning I suggest HPtuners
You will have to have some tuning done to remove at least the VATS. I would also assume most of us doing swaps will not be running a lot of the emissions equipment, so that can be removed from the tune as well. Once you get your engine up and running you can also edit other things like the timing and fuel curves (similar to re-jetting your carb and adjusting your distributor for the old schoolers). Additionally, if you run an electronically controlled tranny (ie 4L60E) you can change the shift parameters. Very usefull tool. But, be careful because if you don't know what you're doing you can blow up your engine or ECM. Also, this program allows you to monitor all of the sensors the engine is putting out, check and clear Check Engine Lights (DTCs) etc.
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Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index Last edited by Ackattack; 12-23-2009 at 05:16 PM. |
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#4 | |
Registered User
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 2,396
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Re: LS engine swap info
Quote:
In my opinion if you own a computer controlled vehicle then tuning software is a must have. Should have been included with the purchase of the car ![]() That's one reason the LS swap is in the works for our blazer, I already have the tuning software. Thanks Thealien for all the info, when I get some more time I'll definately look through it all. |
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#5 |
Account Suspended
Join Date: Oct 2009
Location: Sammamish, WA
Posts: 2,404
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Re: LS engine swap info
A couple of quick links to great LS swap articles:
CarCraft LS A-Body Swap Part I CarCraft LS A-Body Swap Part II CarCraft LS Swap Accessory Guide |
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#6 |
Future TOTM Winner
Join Date: Aug 2006
Location: Bulverde, TX
Posts: 2,692
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Re: LS engine swap info
Thanks Thealien! I have a lot of info saved but it is nowhere as complete or this organized. GREAT JOB! Needs to be a sticky for sure!
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72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com |
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#7 |
MadMan
Join Date: Nov 2010
Location: Hammond, La.
Posts: 490
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Re: LS engine swap info
I will need this info....
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81" Shortbed C10 Full Restoration underway, who needs a budget?? LS Pro Touring Build |
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#8 |
Registered User
Join Date: Feb 2011
Location: madison, IN.
Posts: 484
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Re: LS engine swap info
did not read everything so sorry if i missed it but in a 4x4 can i expect to get better MPG's with an ls or lt swap? someone told me that in a 72 with a 355 and an edelbrock carb that would probably be as good as it gets, but i can not hardly belive that with 6.0's and 5.3 getting 15+ mpg in a new truck it has to get better than an old 355 ( mabey not)
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#9 | |
Registered User
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 2,396
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Re: LS engine swap info
Quote:
I can tell you right now, my 72 blazer with it's 355, mild crane cam, performer rpm intake and 750 holley carb, 350 turbo, 3.07 gears and 33" tall tires. I get 13 mpg around town in stop and go. On the highway cruising at 70 mph at 2400 rpms, I get 16 mpg consistently. No overdrive, no fuel injection. Just a good tune and sensable driving. With the 6.0 (364 cubes) and 4L60E I am certain I'll do even better. For starters, the factory tunes in the trucks are pretty lame, with single digit timing in the tables, etc....it's no wonder the new trucks aren't that great on mileage. All the emissions stuff to run through doesn't help much either. Also there are a few tricks I can do in the tune to find 2-4 mpg in the part throttle areas. Doing the math,,cruising as 70 mph with this setup is only 16-1700 rpms (I'd like to see it a tad higher) and a gear change may be in order. In any event, by the time I'm done, 20mpg or more highway isn't out of the question. I tune my 4th gen camaros, and get 30+ mpg highway out of those with the LS1/6 speed combo. |
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#10 |
Registered User
Join Date: Jul 2011
Location: Austin,Tx
Posts: 3
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Started my LS swap and the 98 camaro exhaust manifolds did not fit using the transadapt plates and the stock motor mounts.
I may be using shorty headers instead for the exhaust set up. Plenty of room near the rear of the motor. I broke one of the rear coils as it hit the brake booster. (accident) You may think of removing these before installing. I used a Poly mount with a single stud in the middle and only had to move the engine mount to the rear using one of the existing holes. The drive shaft will need to be shortened. Using one from a burb. Just wanted to add this to the list. Thank you, Luis G. |
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#11 |
Junior Member
![]() Join Date: May 2024
Location: Flagstaff, AZ
Posts: 28
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Re: LS engine swap info
Are there brackets that work in the K10 frame? My truck has the GMC 305 V6 so I cant use just an adapter plate. All the mount kits I can find are for 2WD trucks.
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#12 |
Registered User
Join Date: Dec 2006
Location: North Prairie
Posts: 9
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Re: LS engine swap info
Excellent reference!!! Thank you for putting this together! A lot of useful information.
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#13 |
Registered User
Join Date: Oct 2009
Location: Chaska, Minnesota
Posts: 137
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Re: LS engine swap info
is it true that if i am running the truck intake, i do not need the corvette regulator filter unit? I can just run the external fuel pump and a filter to the rail that on the truck intake has a integrated regulator?
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my build http://67-72chevytrucks.com/vboard/s...d.php?t=367330 84 short-wide 2wd. 99 5.3 vortec, built 4l60E, schoenfelds, bubb tune, cyber grey metallic 10 camaro ss/rs, 6spd manual, leather, loaded, cyber grey metallic |
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#14 |
Restoration Virgin!
Join Date: Jan 2008
Location: Huntersville, NC
Posts: 8,298
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Re: LS engine swap info
Great info in one spot....Thanks Thealien!!
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Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present |
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#15 |
Future: 86 on GenIV power!
![]() Join Date: Jun 2009
Location: San Antonio, Texas
Posts: 105
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Re: LS engine swap info
Thanks Thealien! Needs to be a sticky! thanks again
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#16 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: LS engine swap info
Glad some of you are finding this usefull
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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#17 |
Still Learning
Join Date: Jul 2009
Location: Central Oklahoma
Posts: 10,108
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Re: LS engine swap info
This is exactly the kind of information I was looking for. I am going to try to fab all my mounts and hopefully my engine stands too. I will be looking to this thread for help. Thanks!
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#18 |
Registered User
Join Date: Jul 2008
Location: San Antonio, Tx
Posts: 99
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Re: LS engine swap info
Lots of good info here. Thanks, Art...
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1990 Chevrolet RCSB●LS1/4L60E Scrimpin Ain't Easy
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#19 |
BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: LS engine swap info
LS1 serpentine belt bracket modification
http://www.maliburacing.com/forum/vi...hp?=34&t=79059 77 with a LS1 5.3 swap http://www.hotrodlane.cc/77chevytruck/77chevy.htm |
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#20 |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: LS engine swap info
In caes anyone want to bookmark this is now an FAQ- LINK
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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#21 |
Rods
![]() Join Date: Nov 2002
Location: Bryan, TX
Posts: 1,398
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Re: LS engine swap info
im still trying to find info on the 2008 harness. all i can find stops at the 06-07
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Just keepin it simple. ![]() 1965 C-10 Ext cab build. 350??(Does it count at 2 truck if I had to cut one up?) 1966 C-10 lwb 283 auto 1970 Suburban in pieces 1971 Blazer 4wd....restore someday. all factory CST 1972 Blazer 4wd parts truck still a roller 1972 GMC Sierra Grandee 1998 Chevy ext driver. 2005 F**D the wife drive...(cant fix women) |
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#22 |
1965 Chevy C10, 2005 4.8L/4l60
![]() Join Date: Aug 2004
Location: DFW Texas
Posts: 8,543
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Re: LS engine swap info
All,
I contacted Novak Adapters and they said they would sell me PN ACG3 minus the compressor for $405.51. (reg $712.00) here is the link http://www.novak-adapt.com/catalog/a...cation_kit.htm I know they specialize in Jeeps, but mostly for LS?GEN III installs in those Jeeps. If you need this this isnt a bad buy, Contact Ryan Information@novak-adapt.com
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Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 ![]() ![]() ![]() support our troops! |
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#23 |
Rods
![]() Join Date: Nov 2002
Location: Bryan, TX
Posts: 1,398
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Re: LS engine swap info
Whats the thread and bolt size for engine mount on ls
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Just keepin it simple. ![]() 1965 C-10 Ext cab build. 350??(Does it count at 2 truck if I had to cut one up?) 1966 C-10 lwb 283 auto 1970 Suburban in pieces 1971 Blazer 4wd....restore someday. all factory CST 1972 Blazer 4wd parts truck still a roller 1972 GMC Sierra Grandee 1998 Chevy ext driver. 2005 F**D the wife drive...(cant fix women) |
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#24 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: LS engine swap info
I know they are 10mmX1.5 but not sure on the length. I "think" it was 30 or 40mm.
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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#25 |
Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,125
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Re: LS engine swap info
LS Torque specs
Engine Torque Specs Application Spec Accelerator Control Cable Bracket Bolts 89 lb in Air Conditioning Compressor Bolts 37 lb ft Air Conditioning Compressor Bracket Bolts 37 lb ft Air Conditioning Idler Pulley Bolt 37 lb ft Air Conditioning Tensioner Bolt 18 lb ft Air Injection Reaction (AIR) Pipe-to-Exhaust Manifold Bolts 15 lb ft Camshaft Retainer Bolts 18 lb ft Camshaft Sensor Bolt 18 lb ft Camshaft Sprocket Bolts 26 lb ft Catalytic Converter Nut 18 lb ft Connecting Rod Bolts - First Design (First Pass) 15 lb ft Connecting Rod Bolts - First Design (Final Pass) 60 degrees Connecting Rod Bolts - Second Design (First Pass) 15 lb ft Connecting Rod Bolts - Second Design (Final Pass) 75 degrees Coolant Temperature Gauge Sensor 15 lb ft Crankshaft Balancer Bolt (Installation Pass-to Ensure the Balancer is Completely Installed) 240 lb ft Crankshaft Balancer Bolt (First Pass-Install a NEW Bolt After the Installation Pass and Tighten as Described in the First and Final Passes) 37 lb ft Crankshaft Balancer Bolt (Final Pass) 140 degrees Crankshaft Bearing Cap Bolts (Inner Bolts-First Pass in Sequence) 15 lb ft Crankshaft Bearing Cap Bolts (Inner Bolts-Final Pass in Sequence) 80 degrees Crankshaft Bearing Cap Side Bolts 18 lb ft Crankshaft Bearing Cap Studs (Outer Studs-First Pass in Sequence) 15 lb ft Crankshaft Bearing Cap Studs (Outer Studs-Final Pass in Sequence) 53 degrees Crankshaft Oil Deflector Nuts 18 lb ft Crankshaft Position Sensor Bolt 18 lb ft Cylinder Head Bolts (First Pass all M11 Bolts in Sequence) 22 lb ft Cylinder Head Bolts (Second Pass all M11 Bolts in Sequence) 90 degrees Cylinder Head Bolts (Final Pass all M11 Bolts in Sequence-Excluding the Medium Length Bolts at the Front and Rear of Each Cylinder Head) 90 degrees Cylinder Head Bolts (Final Pass M11 Medium Length Bolts at the Front and Rear of Each Cylinder Head in Sequence) 50 degrees Cylinder Head Bolts (M8 Inner Bolts in Sequence) 22 lb ft Cylinder Head Coolant Plug 15 lb ft Cylinder Head Core Hole Plug 15 lb ft Drive Belt Idler Pulley Bolt 37 lb ft Drive Belt Tensioner Bolts 37 lb ft Engine Block Coolant Drain Plugs 44 lb ft Engine Block Heater 30 lb ft Engine Block Oil Gallery Plugs 44 lb ft Engine Coolant Air Bleed Pipe Bolts and Studs 106 lb in Engine Crossmember Bolts (Large) 107 lb ft Engine Crossmember Bolts (Small) 92 lb ft Engine Flywheel Bolts (First Pass) 15 lb ft Engine Flywheel Bolts (Second Pass) 37 lb ft Engine Flywheel Bolts (Final Pass) 74 lb ft Engine Flywheel-to-Torque Converter Bolts 44 lb ft Engine Front Cover Bolts 18 lb ft Engine Mount Heat Shield Nuts 89 lb in Engine Mount Stud-to-Engine Block 37 lb ft Engine Mount Through Bolts 70 lb ft Engine Mount Through Bolt Nuts 59 lb ft Engine Mount-to-Engine Block Bolts 37 lb ft Engine Rear Cover Bolts 18 lb ft Engine Service Lift Bracket M10 Bolts 37 lb ft Engine Service Lift Bracket M8 Bolt 18 lb ft Engine Valley Cover Bolts 18 lb ft Engine Wire Harness Clip Bolt 37 lb ft Engine Wire Harness Ground Strap Bolt 37 lb ft Exhaust Gas Recirculation (EGR) Valve Bolts (First Pass) 89 lb in EGR Valve Bolts (Final Pass) 22 lb ft EGR Valve Pipe-to-Cylinder Head Bolts 37 lb ft EGR Valve Pipe-to-Exhaust Manifold Bolts 22 lb ft EGR Valve Pipe-to-Intake Manifold Bolt 89 lb in Exhaust Manifold Bolts (First Pass) 11 lb ft Exhaust Manifold Bolts (Final Pass) 18 lb ft Exhaust Manifold Heat Shield Bolts 80 lb in Exhaust Manifold Pipe Nuts 26 lb ft Front Shock-to-Engine Crossmember Bolts 48 lb ft Fuel Injection Fuel Rail Bolts 89 lb in Generator Bracket Bolts 37 lb ft Generator Rear Bracket-to-Engine Block Bolt 18 lb ft Generator Rear Bracket-to-Generator Bolt 18 lb ft Ground Strap Bolt (at Rear of Cylinder Head) 37 lb ft Ignition Coil-to-Bracket Bolts 106 lb in Ignition Coil Bracket-to-Valve Rocker Arm Cover Bolts 106 lb in Intake Manifold Bolts (First Pass in Sequence) 44 lb in Intake Manifold Bolts (Final Pass in Sequence) 89 lb in Knock Sensors 15 lb ft Oil Filter 22 lb ft Oil Filter Fitting 40 lb ft Oil Level Indicator Tube Bolt 18 lb ft Oil Level Sensor 115 lb in Oil Pan Baffle Bolts 106 lb in Oil Pan Closeout Cover Bolt (Left Side) 106 lb in Oil Pan Closeout Cover Bolt (Right Side) 106 lb in Oil Pan Cover Bolts 106 lb in Oil Pan Drain Plug 18 lb ft Oil Pan M8 Bolts (Oil Pan-to-Engine Block and Oil Pan-to-Front Cover) 18 lb ft Oil Pan M6 Bolts (Oil Pan-to-Rear Cover) 106 lb in Oil Pressure Sensor 15 lb ft Oil Pump-to-Engine Block Bolts 18 lb ft Oil Pump Cover Bolts 106 lb in Oil Pump Relief Valve Plug 106 lb in Oil Pump Screen Nuts 18 lb ft Oil Pump Screen-to-Oil Pump Bolt 106 lb in Oxygen Sensor 31 lb ft Positive Crankcase Ventilation (PCV) System Strap Nut (at Right Front Vapor Vent Pipe Stud) 106 lb in Power Steering Pump Bolts 18 lb ft Power Steering Pump Bracket Bolts 18 lb ft Spark Plugs (Cylinder Heads-New) 15 lb ft Spark Plugs (all Subsequent Installations) 11 lb ft Throttle Body Bolts 106 lb in Transmission Housing Bolt 37 lb ft Valve Lifter Guide Bolts 106 lb in Valve Rocker Arm Bolts 22 lb ft Valve Rocker Arm Cover Bolts 106 lb in Water Inlet Housing Bolts 11 lb ft Water Pump Bolts (First Pass) 11 lb ft Water Pump Bolts (Final Pass) 22 lb ft Water Pump Cover Bolts 11 lb ft T-56 Transmission Torque Specs Application Spec Backup Lamp Switch 20 lb ft Clutch Actuator Cylinder Bolt 71 lb in Clutch Housing Bolt 37 lb ft Control Lever Handle Bolt 18 lb ft Gear Select/Skip Shift Solenoid 30 lb ft Reverse Lockout Assembly Bolt 13 lb ft Reverse Lockout Solenoid 30 lb ft Shift Control Bolt 13 lb ft Shift Control Closeout Boot Bolt 18 lb in Shift Control Knob 27 lb ft Transmission Bolt 37 lb ft Transmission Drain/Fill Plug 20 lb ft Transmission Mount Bolt 38 lb ft Transmission Mount Nut 77 lb ft Transmission Support Bolt 66 lb ft Vehicle Speed Sensor Bolt 89 lb in
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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