Pirate 4x4 banner

1 - 11 of 11 Posts

·
Registered
Joined
·
44 Posts
Discussion Starter #1
is there a difference in the engine mounts between the 6.2L v8 diesel, 350 v8, and 454 v8? What im looking to find out is if i can drop a 6.2 on a 350 or 454 frame with no frame modifications.
 

·
Registered
Joined
·
6,017 Posts
88K1500TEX said:
There is a difference between 454 and 350 or small block fo sho..

Cant say on the diesel.

Misinformation at its best...:shaking:

350 - 454 engine mounts for pickups in the 73-87 year range should all be the same as far as bolt patterns, dimensions ect. And someone correct me if I am wrong, but the 6.2 should use the same mounts too.
 

·
Registered
Joined
·
1,269 Posts
GMC Truxrule is Correct
they are all the same 73 - 87 for the pick ups . k5's and burbs and crew cabs only the pickups and extended cabs changed in 88 all the rest stayed the same till 91 ill put $100.00 on it
as i have been there done that several different times
but 1 thing to rember when going to the 6.2 is to change the torqe converter due to lower rpms
hope it helps
Randy

GMCTruxrule said:
Misinformation at its best...:shaking:

350 - 454 engine mounts for pickups in the 73-87 year range should all be the same as far as bolt patterns, dimensions ect. And someone correct me if I am wrong, but the 6.2 should use the same mounts too.
 

·
Registered
Joined
·
44 Posts
Discussion Starter #5
xsintrick1 said:
GMC Truxrule is Correct
they are all the same 73 - 87 for the pick ups . k5's and burbs and crew cabs only the pickups and extended cabs changed in 88 all the rest stayed the same till 91 ill put $100.00 on it
as i have been there done that several different times
but 1 thing to rember when going to the 6.2 is to change the torqe converter due to lower rpms
hope it helps
Randy
thanks for the tips. gave me the answers i was looking for. But, to correct any ideas, as seen in a couple of my other posts, what i have now is a C10 6.2 burb. My plan is to drop the 6.2 and body onto a k10 or k20 frame w/ axles, and swap out to an NV4500 and atlas 2 speed.
 

·
Registered
Joined
·
18 Posts
There was a bit of a difference in the mounting of the 6.2/454 on original GM mounts. All other engines (I believe) used the bolt holes on the "corners" of the mount, (I think only 3 bolts though) where the 6.2/454 used one in the center on bottom. I am not at home at the moment to look at my frames, to verify. SOME, but not all of the aftermarket motor mounts will have 3 holes in the bottom.
Everything else should be the same.

Virgil
 

·
Registered
Joined
·
6,017 Posts
When I swapped out my 350 for my 454, I used the smallblock mounts that were in the truck on my 454.
Direct bolt in.
 

·
Registered
Joined
·
1,285 Posts
Says here that the "frame side mounting pattern on 1 tons originally equipped with the 454" are different. All others are the same.
Travs
 

·
Registered
Joined
·
284 Posts
I guess thats why i took a factory 454 out and put in a 350 there were different mounts

Now the truck i did that on was 2wd but there was a for sure difference.

As a matter of fact when i tryed to sell the mounts some know it all popped in on how i was trying to rook people advertising them as BB mounts and there wasnt a difference.

\ But in the end after calling some dealerships the guy ended up buying my stands so he would have the right ones for his conversion.

Not sayin one wont work for the other but there is a difference and i belive it is in the height of the engine .

MOGXJ44 said:
Says here that the "frame side mounting pattern on 1 tons originally equipped with the 454" are different. All others are the same.
Travs

When i swapped over to a SB i had to redrill the bottom hole when i changed over to SB Stands.. I Guess The ClamShells Are The Same But There Is A Noticeable diff. in the stands. my trans never moved for the swap and im running the same BB exhaust on Factor Sb Ex Manifold Stainless Headers
 

·
Registered
Joined
·
284 Posts
Much Debate On This Same Issue.
http://67-72chevytrucks.com/vboard/showthread.php?t=143493
Big Block 73 Has My Old Mounts And I Know For A Fact There Is A Difference From When i Took My 85C20 And Swapped From Factory 454- 350

I Changed over to 1/2 Sb Stands Redrilled The Bottom Hole And Thats It Using Same Trans Location Same Exhaust Pipes On Sb Header Style High Heat Manifolds.


Not Trying To Be A Smart Ass Or Know It All But There Is A Difference And Ive Held Both Stands In My Hand And Looked Them Over As The Guy That Purchased Them From Me Pic's Show Compared To His Sb Mounts.

So GMC Truxle You Stand Corrected And xsintrick1 "You Better Put That Money In My Hand Im My Hand"
 
1 - 11 of 11 Posts
Top