The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

FirstGen · 07-14-2005, 12:25 AM

No problem, hope this helps!

1) Does the LS1 PS Pump lines on the LS1 bolt right up to the PS gearbox for our truck?

No the lines do not bolt up, you will need to have one line made to fit (the high pressure line) and the low pressure line you can clamp together.

2) Did you redrill your perches (engine towers) farther back? How much so?

I actually had to move the towers forward slightly to give adaquite room around the rear of the tranny tunnel. When you get to this step it will be clear.

3) You used the L6 towers, right? Do you have the motor mount plate schematic for the mounts, or do you suggest just buying the motor mounts from someone on eBay? (Like THESE ?)

I used the V8 mounts that my truck came with but I actually did some welding and drilling on them to make them better later. If you have a cheap MIG and some basic fab skills you could easily make some nice towers. If not just will need to re-drill the hole in the middle of the tower.
I will look for the schematic for the mounts, however I would just purchase the plates if they are less than $50 shipped.

4) Who fab'd your driveshaft? Any helpful details on that?
The final driveshaft was built locally by a company with .085 wall steel tubing and 1350 yokes on both ends with solid U-Joints. Any competient driveline shop should be able to set you up for under $325 for this piece.

5) What can you tell me about your tranny Xmember? Do you ever rake it on bumps being so low? If it's a custom fab, do you have a pattern? Did you use the stock tranny xmember in addition to the custom one?

I actually used a piece of 1.25" square tubing mild steel and welded on a piece of angle iron in the middle to make a mounting pad. I don't have a template but it's super simple. I'll try to take a picture of the current setup for you. I have yet to scrape it...

6) How did you overcome the pull-pedal setup for gas?

I used a throttle cable and pedal from a 2001 Chrysler something I had in my stash of parts for some reason but if I was doing it again I would look into a nicer Lokar unit.

7) Was any frame cutting necessary?

None for use with manifolds, mid-length headers requires a good inch of trimming on the drivers side and several cuts on the bottom of the chanel on the driver side.

8) Was it necessary to relocate anything on the front of the block (alternator or other)?

Nope.

9) Can you tell me more about your shifter? (PRO 5.0 shifter)

The PRO 5.0 is nothing more than a more solid stock shifter that is a little tighter and has adjustable stops built in so that you don't break sliders in your tranny when grabbing gears.

10) Can you think of some of the small things you forgot along the way? I know I need engine + tranny, motor mounts, computer, just curious about the other things people usually forget like hoses and adapters - what kind of stuff you wound up having to drop everything and drive to the auto parts store for?

Yeah, a lot of little crap. Budget for at least 20% in funds for all the little stuff. I couldn't even begin to go into that...

Hope that helps a little bit. If you have more specific questions that arise I would be happy to help.

Take care,
Taylor

I have a list of links related to this swap and similar swaps if anyone is interested.

FirstGen's LS1-T56 thread (this one): http://67-72chevytrucks.com/vboard/s....php3?t=111137
FirstGen's Vintage air install: http://67-72chevytrucks.com/vboard/s...75#post1310375
Example of motor mount adapters for LS1:
http://cgi.ebay.com/ebaymotors/ws/eB...category=50454
Suggested contact for LS1 Wiring adapter: Jared @ www.currentperformance.com
LT1/4L60E swap from jay-dawg: http://67-72chevytrucks.com/vboard/s...d.php3?t=52057
Here's where Hart_Rob suggests getting your engine (Ask for Jeremy. Tell him Rob Hartley said to call): http://stores.ebay.com/Schram-Auto-P...erLinksQQtZkm?
LS1 motor mount info thread: http://67-72chevytrucks.com/vboard/s....php3?t=154591
68LSS1's photo album from his swap: http://revxtreme.com/gallery/thumbnails.php?album=7
Link to a photo album from LS1tech member covering his swap: http://www.salj.info/cmine/thumbnails.php?album=1
Short thread on the LS1 swap with links to other pages in this list: http://67-72chevytrucks.com/vboard/s....php3?t=150829
Other general info on late model engine swaps: http://67-72chevytrucks.com/vboard/s...3&page=1&pp=25[/QUOTE]

07-14-2005, 12:25 AM	#62
FirstGen Just Don't Stop! Join Date: Feb 2004 Location: Dallas Posts: 1,239	No problem, hope this helps! 1) Does the LS1 PS Pump lines on the LS1 bolt right up to the PS gearbox for our truck? No the lines do not bolt up, you will need to have one line made to fit (the high pressure line) and the low pressure line you can clamp together. 2) Did you redrill your perches (engine towers) farther back? How much so? I actually had to move the towers forward slightly to give adaquite room around the rear of the tranny tunnel. When you get to this step it will be clear. 3) You used the L6 towers, right? Do you have the motor mount plate schematic for the mounts, or do you suggest just buying the motor mounts from someone on eBay? (Like THESE ?) I used the V8 mounts that my truck came with but I actually did some welding and drilling on them to make them better later. If you have a cheap MIG and some basic fab skills you could easily make some nice towers. If not just will need to re-drill the hole in the middle of the tower. I will look for the schematic for the mounts, however I would just purchase the plates if they are less than $50 shipped. 4) Who fab'd your driveshaft? Any helpful details on that? The final driveshaft was built locally by a company with .085 wall steel tubing and 1350 yokes on both ends with solid U-Joints. Any competient driveline shop should be able to set you up for under $325 for this piece. 5) What can you tell me about your tranny Xmember? Do you ever rake it on bumps being so low? If it's a custom fab, do you have a pattern? Did you use the stock tranny xmember in addition to the custom one? I actually used a piece of 1.25" square tubing mild steel and welded on a piece of angle iron in the middle to make a mounting pad. I don't have a template but it's super simple. I'll try to take a picture of the current setup for you. I have yet to scrape it... 6) How did you overcome the pull-pedal setup for gas? I used a throttle cable and pedal from a 2001 Chrysler something I had in my stash of parts for some reason but if I was doing it again I would look into a nicer Lokar unit. 7) Was any frame cutting necessary? None for use with manifolds, mid-length headers requires a good inch of trimming on the drivers side and several cuts on the bottom of the chanel on the driver side. 8) Was it necessary to relocate anything on the front of the block (alternator or other)? Nope. 9) Can you tell me more about your shifter? (PRO 5.0 shifter) The PRO 5.0 is nothing more than a more solid stock shifter that is a little tighter and has adjustable stops built in so that you don't break sliders in your tranny when grabbing gears. 10) Can you think of some of the small things you forgot along the way? I know I need engine + tranny, motor mounts, computer, just curious about the other things people usually forget like hoses and adapters - what kind of stuff you wound up having to drop everything and drive to the auto parts store for? Yeah, a lot of little crap. Budget for at least 20% in funds for all the little stuff. I couldn't even begin to go into that... Hope that helps a little bit. If you have more specific questions that arise I would be happy to help. Take care, Taylor I have a list of links related to this swap and similar swaps if anyone is interested. FirstGen's LS1-T56 thread (this one): http://67-72chevytrucks.com/vboard/s....php3?t=111137 FirstGen's Vintage air install: http://67-72chevytrucks.com/vboard/s...75#post1310375 Example of motor mount adapters for LS1: http://cgi.ebay.com/ebaymotors/ws/eB...category=50454 Suggested contact for LS1 Wiring adapter: Jared @ www.currentperformance.com LT1/4L60E swap from jay-dawg: http://67-72chevytrucks.com/vboard/s...d.php3?t=52057 Here's where Hart_Rob suggests getting your engine (Ask for Jeremy. Tell him Rob Hartley said to call): http://stores.ebay.com/Schram-Auto-P...erLinksQQtZkm? LS1 motor mount info thread: http://67-72chevytrucks.com/vboard/s....php3?t=154591 68LSS1's photo album from his swap: http://revxtreme.com/gallery/thumbnails.php?album=7 Link to a photo album from LS1tech member covering his swap: http://www.salj.info/cmine/thumbnails.php?album=1 Short thread on the LS1 swap with links to other pages in this list: http://67-72chevytrucks.com/vboard/s....php3?t=150829 Other general info on late model engine swaps: http://67-72chevytrucks.com/vboard/s...3&page=1&pp=25[/QUOTE] __________________ 1968 C10 build in process TT LSA/6L90e/9"