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#1 |
Registered User
Join Date: Sep 2004
Location: Elkins, West Virginia
Posts: 2,542
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ls1 motor mount adapter plates
i'm trying to sloooowly gather up the parts needed to do the swap (someday), so far i have the larger radiator installed, better set of rear gears installed (3:42 posi), and have bought a 91 burb gauge cluster
just wandering if these mounts work? these are the thicker one's http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT these are the thinner ones: http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT i was up late a few nights ago ready through all the builds, and someone recommended these, but i'm too lazy to look through all those threads again ![]() is there any other parts, that you guys have done this already, would recommend stockin up on so i can have everything to do this? thanks
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1987 350 TBI lowered 5/7 Last edited by bigarmzz; 04-24-2010 at 02:40 PM. |
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#2 |
Registered User
Join Date: Feb 2007
Location: Texas
Posts: 469
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Re: ls1 motor mount adapter plates
Those mounts will work fine if you're planning to run the 700r4 or 4l60e trans. I ran the th350 with those style of mounts and it moved the motor too far from the trans. I ended up bying the S&P 1" setback adapters for mine. The S&P's made the motor sit up higher and gave me a little more exhaust clearance around the frame and control arm.
Start reading up on how you want to do you accessories if you don't already have them, I think which type you use affects if you can fit A/C equipment easily or not. Alternator wiring needs attention - you may have to run a resistor in the wire going to the plug. If you're gonna use a Th350/400, you may have to change the flexplate and/or get a pilot spacer/adapter(if you don't buy a custom LS1/Th350 torque converter). You going carbureted or sticking with EFI?
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1982 Silverado - SBE, cleaned up GM heads, small cam, TH350, 850 Demon, 4.56 gears, and caltracs. Best time so far 11.8@XXXMPH |
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#3 | |
Registered User
Join Date: Sep 2004
Location: Elkins, West Virginia
Posts: 2,542
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Re: ls1 motor mount adapter plates
well i currently have a 700r4, so i shouldnt have any problems with needing to go an inch further or back....
Quote:
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1987 350 TBI lowered 5/7 |
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#4 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: ls1 motor mount adapter plates
Actually, the top link is the thinner ones (5/16"), Use those. Go back through my build thread. There is a post in there with all the parts, numbers, prices, and places to buy of the parts that I used.
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE |
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#5 | |
Registered User
Join Date: Sep 2004
Location: Elkins, West Virginia
Posts: 2,542
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Re: ls1 motor mount adapter plates
Quote:
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1987 350 TBI lowered 5/7 |
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#6 |
Formerly- 1972SuperCheyenne
![]() Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
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Re: ls1 motor mount adapter plates
I used the thicker ones on my 6.0/4l80e swap. They worked perfect and the enging sits high enough that the truck pan doesnt hang below the frame but maybe 1/4 inch. I am sure either one will work. The ones I used also left the engine in the stock location and didnt move it forward or back. I was also able to use the factory driveshaft with the yoke from the 4l80 and a conversion joint.
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--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
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