65-66 gs engine mount mod

Discussion in ''Da Nailhead' started by 66larkgs, Jul 22, 2012.

  1. 66larkgs

    66larkgs paul 66gs turbo nailhead

    getting ready to put the turbo 401 back in the car but my stock motor mounts are shot. been looking around and they are a crazy money.. i bought some inpala mounts and with some fab work we have replacement motor mounts for $12.00. $6 each side. i didnt now if thier is anyone else out thier but i was thinking of doing a how to with step by step. anyone interested??

    Paul
    66larkgs
    ridetech airride
    c5/c6 corvette brakes
    t67 garret turbo
    and the BEST part Buick 401 Nailhead!!!
     
  2. bhambulldog

    bhambulldog 1955 76-RoadmasterRiviera

    I'm not needing any mounts right now. But, I would like to see how the modification goes.....
     
  3. GS Jim

    GS Jim Platinum Level Contributor

    Yes I am Thank's. There is a Template floating around on here to make the Plates. Now the Frame pads. What to use?
    PONCH
     
  4. 66larkgs

    66larkgs paul 66gs turbo nailhead

     
  5. telriv

    telriv Founders Club Member

    L & R frame pads are different. NO other makes will do. '65-'66 GS ONLY. Block plates can be made from a piece of 3/4" aluminum. Paul, you will have to "Chain" down those chevy mounts. If you don't they will break in short order.

    Tom T.
     
  6. 66larkgs

    66larkgs paul 66gs turbo nailhead

    i will strap the motor down for safety anyways but i dont think these will break. i used these same motor mounts for my 406sb and never had a issue. i was around 550hp.. 11.30 in a 3200lb nova the 406 went.

    Paul
     
  7. nailheadnut

    nailheadnut Riviera addict

    Could someone share a vendor and part number for the Impala (year and engine?) mount? I'd like to cross reference it and see if anyone, like enegy suspension, is perhaps making a urethane mount for the same applications.

    Thanks,

    Ed
     
  8. Bigpig455

    Bigpig455 Fastest of the slow....

    I dont like the offset of the plates much - I chained my motor and have never had an issue with stock 40 year old (?) mounts.
     
  9. wkillgs

    wkillgs Gold Level Contributor

    Anchor #2142

    Used in most Chev small block cars in the mid 60's.
    There was a HD version once available with interlocking plates.

    I've posted pics several years ago, but the boards search function isn't working well for me these days.....
     
  10. 66larkgs

    66larkgs paul 66gs turbo nailhead


    Energy Suspension/Motor Mount - Performance

    Number: 3.1114G

    is a urathane version, this is available at autozone for $45.00

    i know some people like using the stock ones and i would too but they are too hard to get and even more $$$. why not make it easy with a universal plate.
    Paul
     
  11. nailheadnut

    nailheadnut Riviera addict

    Thanks for the info.

    If you're looking for original mounts, I know that Anchor still make OE type mounts for my 63 and 64 Rivieras. If you're shopping at Advance Auto (my personal experience,) AutoZone, NAPA, or some other nationla parts jobber, you'll find that they only list the most popular items on their computer. If you can find a parts guy (the one with gray hair) who's willing to look in the books behind the counter, you'll find a ton of products that aren't on their counter's computer. I know that Advance now handles Anchor mounts; I ordered a pair through them for my '64. It will take a couple of extra days, but they are out there.

    Here's the link for Anchor mounts. Rivieras and Skylarks use the same nailhead mount according to their online catalog.
    http://www.showmetheparts.com/anchor/


    Ed
     
  12. jmos4

    jmos4 Well-Known Member

    Hi,

    The one Anchor list is wrong its for a full size or Rivera one for a 65/66 Gran Sport has the same engine side of the mount ye the cradle side is U-shaped like a typical Small Block Chevy,

    there was a post either here one on 65GS.com that said you could use a early Chevy mount which only had 3 holes on the engine side which would require you to drill and tap your mounting plates to accept this and there may have been a thickness difference if memory serves


    good luck,
     
  13. 66larkgs

    66larkgs paul 66gs turbo nailhead

    you could just drill and tap your plate or put a adaptor plate from a 3 to a four bolt. i really didnt want to drill and tap the plate even thou it is the easiest thing to do.

    i will get some pictures posted of the motor mounts i did.

    Paul
     
  14. doc

    doc Well-Known Member

    Well,,,,,,, we are already into fabricating,,,,,has anyone checked out the mounts for a chebby BIG truck,,, or a ford big truck for that matter..... truck mounts are made to take a bunch of abuse.....
     
  15. telriv

    telriv Founders Club Member

    Paul, I don't understand why you would be unwilling to drill & tap one hole. If or when you do go back to original the hole won't even be seen. It will be covered by the Buick mount. We're not talking about something hard to do here. Even with a stock mount I would chain it down. Those damn things are to EXPENSIVE to break.

    Tom T.
     
  16. 66larkgs

    66larkgs paul 66gs turbo nailhead

    i have to take some pictures so you can see but thier are four raised bosses for the mount to bolt to and if i was to drill and tap for the third hole in the center in would cock the mount down. you could put washers under it but i wont do that. Instead a made a plate that bolts to the factory four bosses and i drill and welded a nut under the plate for the third center hole.I will try to go to the shop tomorrow to take pictures. i did have to bevel the hole on the sbc mount hole to get the mount in the right spot and to fit on the frame pad correct. i dont see why you can't use sbc frame pads from a chevelle. the cradle is the same, and you would be using a chevy motor mount so that would be fine.
    total time 1hr 30 mins mod

    Paul
     
  17. wkillgs

    wkillgs Gold Level Contributor

    The stamped steel Chevelle frame pads look higher than the cast iron GS pads. The engine would be sitting higher.

    Steele or CARS will revulcanize your original GS motor mounts for under $100 a pair. Why not go that route?
     
  18. 66larkgs

    66larkgs paul 66gs turbo nailhead

    The stamped steel Chevelle frame pads look higher than the cast iron GS pads. The engine would be sitting higher.
    the sbc mount is 1/4 shorter so it will most likely keep it the same height.

    i most likely will send out the factory ones and have them redone. I enjoy playing my own mythbusters. it has been brought up on the board a few times over the years and i wanted to try it. This was actually how i started doing the turbo build. The exsperimental engine would come up and some pictures would be posted but someone said it couldnt be done.. i guess i enjoy a challenge.
    I would rather be fabbing up something in the garage than drinking in the bar(save money, put it back into car),
    so know i drink beer in the garage!!:beers2:
     
  19. 66larkgs

    66larkgs paul 66gs turbo nailhead

    038.jpg 039.jpg 040.jpg 041.jpg 042.jpg
    here are a few pictures that i had from the other day. havent painted or powdercoated anything yet.
    tomorrow i hope to get some things sand blasted if i can get some big customer jobs out the door.

    Paul
    66larkgs
    turbo401 nailhead
     
  20. 66larkgs

    66larkgs paul 66gs turbo nailhead

    change of plans, going to run a solid mount on the drivers side, rubber on the pass and a rubber for the trans mount. anyone else run this setup??

    Paul
     

Share This Page