May 23, 2012, 02:48:14 AMLatest Member: jjfoster41

Author Topic: Making your own motor mounts  (Read 370 times)

sandeggo

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Making your own motor mounts
« on: February 04, 2012, 08:10:43 AM »
Supplies: 3/8" aluminum plate and WD-40, sharpie pens.
Tools: measuring devices, jigsaw with course wood blades, router(the bigger the better), clamps, drill press, carbide burrs, files. Or a mill.
Layout the cuts.
Cut out the pieces, I used all woodworking tools with no problems at all. For the long straight cuts I used a 12" miter saw. Use wd40 to lube the blades. To square up the jigsaw cuts I put a carbide burr in a drill press and used my hands as a XY table. Then I used the router to get fancy. the rougher blades work better in the jigsaw because the aluminum is soft and gums up the fine metal blades.




Test fit

Front plate

Used a jigsaw to rough cut, then a rough burr to smooth out the curves, then a smooth burr to square all in the drill press.
Router really set it off


Let's do a fancy speed hole

Polish

Mounted plumbing holes tapped to 1/2" npt from harbor freight.

« Last Edit: February 04, 2012, 08:35:28 AM by sandeggo »
1978 Southwind tunnel dragster
Carbed 2007 5.3L LS
OUTLAW WAKE SURFING

sandeggo

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Making your own motor mounts
« Reply #1 on: February 04, 2012, 08:15:29 AM »
Now time for a flywheel cover.
Had a circle water jetted out of aluminum, then rolled some flatbar, then drilled and tapped the rear motor plate. Made some bolt spacers out of cheap aluminum tubing from home depot, bolted it to the motor plate and welded the tubing to the flatbar.

Fire up the tig


Sand and paint and top it off with stainless Allen's. Total cost for all of the mounts was about $100 bucks
« Last Edit: February 04, 2012, 08:22:05 AM by sandeggo »
1978 Southwind tunnel dragster
Carbed 2007 5.3L LS
OUTLAW WAKE SURFING

farmergord

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Re: Making your own motor mounts
« Reply #2 on: February 04, 2012, 08:34:46 AM »
nice job Kevin but i'll need a set of 460 plates  >:D
  • Boat #1: 1976 Pioneer 19foot
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sandeggo

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Re: Making your own motor mounts
« Reply #3 on: February 04, 2012, 08:44:42 AM »
Sorry gord but I only work on chebbys
1978 Southwind tunnel dragster
Carbed 2007 5.3L LS
OUTLAW WAKE SURFING

ka0tyk

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Re: Making your own motor mounts
« Reply #4 on: February 04, 2012, 09:15:00 AM »
Sorry gord but I only work on chebbys

good ill take a front plate for a bbc.  ^-^

mash on it

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Re: Making your own motor mounts
« Reply #5 on: February 04, 2012, 12:09:33 PM »
good ill take a front plate for a bbc.  ^-^

I used a front bbc 4 pt. as a pattern and a sbc sprint car mount as a pattern to make a boat sbc 4 pt. mount, 1/2" IRON with a plasma cutter, weighed bout 50 lbs, and plenty stout, then made a 1/2" aluminum sbc mount, (water jet cost $20 to cut) both with alt. mounts. I've been told oak and aluminum are similar hardness.

Them LS mounts look badass...

Thats all I got
Daniel
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HaulsBalls

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Re: Making your own motor mounts
« Reply #6 on: February 05, 2012, 01:16:08 PM »
These mounts came out great, glad to see fabrication posts showing up around here.  Motivating to get stuff done, thanks Kevin.

sandeggo

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Re: Making your own motor mounts
« Reply #7 on: February 06, 2012, 04:37:30 AM »
One thing to add, I would have saved an incredible amount of time making a template and then having it water jetted. It really isn't all that expensive. I highly recommend it.
1978 Southwind tunnel dragster
Carbed 2007 5.3L LS
OUTLAW WAKE SURFING

82daytona

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Re: Making your own motor mounts
« Reply #8 on: February 06, 2012, 05:46:30 AM »
wow! you're the man

sandeggo

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Re: Making your own motor mounts
« Reply #9 on: February 06, 2012, 06:45:09 AM »
One last thing, before you router anything make sure your cuts are smooth and square. If there is any bumps it will transfer into the router when the bearing hits it.
1978 Southwind tunnel dragster
Carbed 2007 5.3L LS
OUTLAW WAKE SURFING

74hondo

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Making your own motor mounts
« Reply #10 on: March 13, 2012, 02:19:46 PM »
Thanks man! Great info! I need to do this

 


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