Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
03-01-2016, 04:07 PM | #1 |
Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
|
72 LSX mounts without cutting frame?
Hey guys I have a powder coated rolling frame that I want to use so Im looking for swap mounts that place the engine where I dont have to notch the frame to clear anything. Has anyone successfully done this? Its a 72 2wd frame and Ill be using a 5.3 truck motor. Dont want to mess up the powder coat job if I dont have to.
|
03-01-2016, 04:55 PM | #2 |
Registered User
Join Date: Nov 2014
Location: Alameda, CA
Posts: 877
|
Re: 72 LSX mounts without cutting frame?
I'm not aware of any of the mounts that require doing anything to the frame. Some manifolds/headers and AC require it, so it really depends on what you want to do with the truck.
__________________
1973 C20, 350/350 |
03-01-2016, 05:14 PM | #3 |
Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
|
Re: 72 LSX mounts without cutting frame?
ive seen a couple swaps where they cut into the frame to clear the a/c and headers like you mentioned. im trying to avoid that so i dont mess with the powder coat.
|
03-01-2016, 05:45 PM | #4 |
Registered User
Join Date: Nov 2014
Location: Alameda, CA
Posts: 877
|
Re: 72 LSX mounts without cutting frame?
Are you planning on running AC? What exhaust setup do you want to run?
I believe the Tejas mounts are a little higher and farther forward, which lets you run the stock AC setup.
__________________
1973 C20, 350/350 |
03-01-2016, 05:55 PM | #5 |
Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
|
Re: 72 LSX mounts without cutting frame?
will be running a/c and i have the truck manifolds but will change them if i have to.
|
03-01-2016, 05:58 PM | #6 |
Registered User
Join Date: Oct 2013
Location: Alabama
Posts: 1,234
|
Re: 72 LSX mounts without cutting frame?
Doug Thorley headers and hi-mount compressor bracket = no cut frame.
|
03-01-2016, 06:00 PM | #7 |
Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
|
Re: 72 LSX mounts without cutting frame?
sounds like the tejas mounts are for square body trucks.
|
03-01-2016, 06:00 PM | #8 |
Registered User
Join Date: May 2013
Location: Chicago, IL
Posts: 217
|
Re: 72 LSX mounts without cutting frame?
And trailblazer SS manifolds seem to be a good OEM option to clear the frame
|
03-01-2016, 06:07 PM | #9 |
Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
|
Re: 72 LSX mounts without cutting frame?
changing brackets is going to be last resort. im hoping i can find mounts that will help and it looks like trailblazer manifolds are a must.
|
03-01-2016, 06:25 PM | #10 |
Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
|
Re: 72 LSX mounts without cutting frame?
Has anyone on here used the early classic mounts. Ive read these can help me but their site says slight frame modification may be required?
|
03-02-2016, 09:20 PM | #11 |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,779
|
Re: 72 LSX mounts without cutting frame?
-
I bought these for the '67 Panel Truck with the LS1/4l60e combo and they fit like a glove..... You can also get them in a coated version. http://www.ebay.com/itm/Hooker-Heade...xTxRxO&vxp=mtr LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
03-03-2016, 11:59 AM | #12 |
Registered User
Join Date: Jan 2016
Location: nl connecticut
Posts: 22
|
Re: 72 LSX mounts without cutting frame?
cut, turn and weld the stock truck manifold flange to clear the frame. stock manifolds are cast steel (not cast iorn) and very easy to weld
|
03-03-2016, 12:55 PM | #13 |
Registered User
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
|
Re: 72 LSX mounts without cutting frame?
Have you looked at Dirtydingo adjustable engine mounts and sanden compressor mounts
__________________
53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 |
03-03-2016, 04:41 PM | #14 |
Registered User
Join Date: Sep 2007
Location: Houston, TX
Posts: 115
|
Re: 72 LSX mounts without cutting frame?
I second the Hooker manifolds. No cutting required. Now if you plan to use the factory LS Truck A/C compressor location, you're going to have to do some crazy custom lines to avoid cutting the frame.
__________________
Current: 2012 Ford F-250 4x4 6.7 Powerstroke 1971 C-20 2wd 350/TH400 Former: 1979 C-20 2wd 350/TH400, 300+hp. Rattle can paint job 1982 K-30 454/700R4. 4in lift with 37" Goodyear MT/R's Lots of goodies - Trail clean up truck |
03-07-2016, 08:25 PM | #15 | |
Registered User
Join Date: Mar 2016
Location: Vancleave, MS
Posts: 14
|
Re: 72 LSX mounts without cutting frame?
Quote:
I built a jig out of wood to simulate the motor mounts and bottom of oil pan. I also built a mating jig to simulate the motor mounts on the block and bottom of the oil pan. I used this to align and measure my motor mount locations in the frame prior to drilling the extra holes required in the crossmember and to also keep things square because the mounts have elongated holes and they also have a high and low bolt pattern. |
|
Bookmarks |
|
|