1975 Monte Carlo
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G3GM :: Media :: G3 Project Pictures
Page 8 of 11
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Re: 1975 Monte Carlo
1973 454 MONTE wrote: love those wheels
i will get a pic of mine,but i think ours does not look like swiss cheese.
a 350 drops right into my 454 mounts.
This is how you make Swiss cheese (but I'm sure you knew that)
77mali- Donating Member
- Street Cred : 62
Re: 1975 Monte Carlo
I'm thinking about these brackets, not the frame mounts:
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
Indeed! You know if small block brackets can be put on a big block?
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
I'm not 100% certain that they can. I can measure & we can compare to what Chris has or maybe he already knows the answer for sure. I'll post my measurements later today if you still need them.
77mali- Donating Member
- Street Cred : 62
Re: 1975 Monte Carlo
Thanks for the offer Mali!
From what I read here: http://www.nastyz28.com/2gcog/motmount.html I assume small block brackets will work.
The ones I bought yesterday measure 2 5/8", so apparently they are not from a truck according to that site.
Chris: is it possible for you the measure the distance in your brackets?
http://www.nastyz28.com/2gcog/tech/clam-tape.jpg
From what I read here: http://www.nastyz28.com/2gcog/motmount.html I assume small block brackets will work.
The ones I bought yesterday measure 2 5/8", so apparently they are not from a truck according to that site.
Chris: is it possible for you the measure the distance in your brackets?
http://www.nastyz28.com/2gcog/tech/clam-tape.jpg
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
my 454 clams are 2 3/8.
if memory serves me right,when i put the 350 in my car i tried the 454 clams,but it would not fit.
so YES clams are different it looks like.
if memory serves me right,when i put the 350 in my car i tried the 454 clams,but it would not fit.
so YES clams are different it looks like.
1973 454 MONTE- Donating Member
- Street Cred : 36
Re: 1975 Monte Carlo
1973 454 MONTE wrote:my 454 clams are 2 3/8.
if memory serves me right,when i put the 350 in my car i tried the 454 clams,but it would not fit.
so YES clams are different it looks like.
So it's the bolt pattern against the block which is different, or the shape as well?
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
Do you still need measurements? Mike look like the ones you posted from the Camaro site. Let me know.
77mali- Donating Member
- Street Cred : 62
Re: 1975 Monte Carlo
block is the same, shape is close.
bb on left
bb closest
bb on left
bb closest
1973 454 MONTE- Donating Member
- Street Cred : 36
Re: 1975 Monte Carlo
Man, hard to see the difference for an untrained eye. Thanks Chris!
Mali: you don't have to bother, seems like I have to find some big block brackets now.
Mali: you don't have to bother, seems like I have to find some big block brackets now.
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
Fishgrinder wrote:Man, hard to see the difference for an untrained eye. Thanks Chris!
Mali: you don't have to bother, seems like I have to find some big block brackets now.
http://www.ebay.com/itm/GM-454-CHEVY-ENGINE-MOTOR-MOUNTS-A-B-1973-90-11467-11609-/190769347388#ht_3007wt_806
1973 454 MONTE- Donating Member
- Street Cred : 36
Re: 1975 Monte Carlo
1973 454 MONTE wrote:Fishgrinder wrote:Man, hard to see the difference for an untrained eye. Thanks Chris!
Mali: you don't have to bother, seems like I have to find some big block brackets now.
http://www.ebay.com/itm/GM-454-CHEVY-ENGINE-MOTOR-MOUNTS-A-B-1973-90-11467-11609-/190769347388#ht_3007wt_806
Done!
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
Glad it worked out. When are we going to see the new motor
77mali- Donating Member
- Street Cred : 62
Re: 1975 Monte Carlo
I never knew there was a difference in the mounts! I was able to use my 350 mounts on my 454. Had no problems. Until I read this, I assumed they were the same. Funny thing is I now have a set that came with the 454 I just rebuilt, and I can't tell the difference!
Bruisr- G3GM Member
- Street Cred : 8
Re: 1975 Monte Carlo
Since the 454 mounts only measure 2 3/8" from the bottom to hole centerline I assume the engine will sit lower in the bay compared to small block mounts. But if there is enough room under the hood, maybe it wont be an issue.
If I get the brackets by next weeked we'll lift the engine in Mali!
If I get the brackets by next weeked we'll lift the engine in Mali!
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
77mali wrote:
This is how you make Swiss cheese (but I'm sure you knew that)
1973 454 MONTE- Donating Member
- Street Cred : 36
Re: 1975 Monte Carlo
Does anyone know what size the bolts for the frame mounts are? Do they need to be high grade?
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
heads are 5/8 nuts are 11/16.
my guess yes and 1/2.
my guess yes and 1/2.
1973 454 MONTE- Donating Member
- Street Cred : 36
Re: 1975 Monte Carlo
Thanks chris, but do you refer to the bolts that go through the mounts, or the three that clamp the mount to the frame? I was thinking about the latter.
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
All right, but do you also know the size of the mount to frame bolts?
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
Here's a pic- I'll measure the length/diameter once I can find my calipers. The heads for the nut & bolt are 9/16". They way mine mounts to frame there are 3 bolt/nut assemblies used. But you may require 4 sets per side for the big block, not sure.
77mali- Donating Member
- Street Cred : 62
Re: 1975 Monte Carlo
Great mali! I think there will be three on each for the big block as well.
Fishgrinder- G3GM Member
- Street Cred : 4
Re: 1975 Monte Carlo
Picked up the mounts today:
http://www.ebay.com/itm/GM-454-CHEVY-ENGINE-MOTOR-MOUNTS-A-B-1973-90-11467-11609-/190769347388#ht_3007wt_806
However, they don't measure 2 3/8" from the bottom to the hole centerline like yours Chris. They are just under 2 7/8". Truck mounts?
Can this 4/8" difference really cause a problem? I doubt it. Hoping to get the engine in during the weekend.
http://www.ebay.com/itm/GM-454-CHEVY-ENGINE-MOTOR-MOUNTS-A-B-1973-90-11467-11609-/190769347388#ht_3007wt_806
However, they don't measure 2 3/8" from the bottom to the hole centerline like yours Chris. They are just under 2 7/8". Truck mounts?
Can this 4/8" difference really cause a problem? I doubt it. Hoping to get the engine in during the weekend.
Fishgrinder- G3GM Member
- Street Cred : 4
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G3GM :: Media :: G3 Project Pictures
Page 8 of 11
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