Motor Mounts - What Are They From?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Prathbun · 01-31-2009, 03:40 PM

I'm doing a 2004 5.3 swap into a 67 c-20 and I'm trying to figure out the motor mounts.

What year are these mount from??
If I use these and the adapter plate to the 5.3, will a 2004 Silverado manifold, a/c and ps pump fit without cutting the frame??

I was going to use the '67 type towers but some posts say that I'll need to modify them so the exhaust won't rub.

Does anyone have any better pics of the set up I might need.

Thanks for the help

breeh · 01-31-2009, 03:41 PM

They look like the '72 only 2wd big block mounts.

Prathbun · 01-31-2009, 03:51 PM

This is the set up I think I would need with my '67 towers now. It looks like if I use this setup, I'll only need one bolt to the tower. Thanks to whoever took the picture and sorry about the focus.

Prathbun · 01-31-2009, 03:53 PM

Can I take the "clam shell" looking mounts and make a setup similar to this cool one??

By the way, who makes this setup??

Prathbun · 01-31-2009, 03:58 PM

These also look cool and I think they would work. I just need to know if I'm on the right track. Do the big block 2wd motor mount towers look like the cool ones in my previous posts??

Thanks

**clay68c10** · 02-01-2009, 12:45 AM

I'm not sure the clamshell mounts will work with a gen 3 on BBC towers, but those mounts are WAY better than the flat biscuit mounts.
They're stronger and you feel a lot less vibration. It's enough of a difference that my wife noticed it and had no idea that I had changed anything when i switched to them. She just knew the truck "felt smoother".

Prathbun · 02-01-2009, 12:16 PM

Thanks for the replies. I have grown weary of trying to figure out exactly what I need. It appears that tons of other people have had these questions as well. I have given in and ordered these mounts from www.performanceonline.com.

SKU: ECM6372
Product: 1963-72 CHEVY TRUCK, ENGINE MOUNTING BRACKETS, V-8 (BOLT IN)(ECM6372)
#1680

Next I'll need to work on the block plates

Prathbun · 02-01-2009, 12:36 PM

Quote:

Originally Posted by Prathbun

I'm doing a 2004 5.3 swap into a 67 c-20 and I'm trying to figure out the motor mounts.

What year are these mount from??

Does anyone have any better pics of the set up I might need.

Here is a better picture of 72 2wd BB mounts....Sorry for stealing your picture Otsenre

01-31-2009, 03:41 PM	#2
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	Re: Motor Mounts - What Are They From?? They look like the '72 only 2wd big block mounts. __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

01-31-2009, 03:51 PM	#3
Prathbun Registered User Join Date: Jul 2007 Location: Poplar Bluff, MO 63901 Posts: 293	Re: Motor Mounts - What Are They From?? This is the set up I think I would need with my '67 towers now. It looks like if I use this setup, I'll only need one bolt to the tower. Thanks to whoever took the picture and sorry about the focus. Attached Images __________________ It's Not Rust, It's Patina!! 1967 C 20 Large Window, 700R4, 283, Tilt, PS, PB.....A Rusty But Trusty Gas Hog 2008 Silverado LTZ 1500 4x4

01-31-2009, 03:53 PM	#4
Prathbun Registered User Join Date: Jul 2007 Location: Poplar Bluff, MO 63901 Posts: 293	Re: Motor Mounts - What Are They From?? Can I take the "clam shell" looking mounts and make a setup similar to this cool one?? By the way, who makes this setup?? Attached Images __________________ It's Not Rust, It's Patina!! 1967 C 20 Large Window, 700R4, 283, Tilt, PS, PB.....A Rusty But Trusty Gas Hog 2008 Silverado LTZ 1500 4x4

01-31-2009, 03:58 PM	#5
Prathbun Registered User Join Date: Jul 2007 Location: Poplar Bluff, MO 63901 Posts: 293	Re: Motor Mounts - What Are They From?? These also look cool and I think they would work. I just need to know if I'm on the right track. Do the big block 2wd motor mount towers look like the cool ones in my previous posts?? Thanks Attached Images __________________ It's Not Rust, It's Patina!! 1967 C 20 Large Window, 700R4, 283, Tilt, PS, PB.....A Rusty But Trusty Gas Hog 2008 Silverado LTZ 1500 4x4

02-01-2009, 12:45 AM	#6
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,990	Re: Motor Mounts - What Are They From?? I'm not sure the clamshell mounts will work with a gen 3 on BBC towers, but those mounts are WAY better than the flat biscuit mounts. They're stronger and you feel a lot less vibration. It's enough of a difference that my wife noticed it and had no idea that I had changed anything when i switched to them. She just knew the truck "felt smoother". __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

01-31-2009, 03:40 PM	#1
Prathbun Registered User Join Date: Jul 2007 Location: Poplar Bluff, MO 63901 Posts: 293	5.3 Swap Motor Mounts - What Are These From?? I'm doing a 2004 5.3 swap into a 67 c-20 and I'm trying to figure out the motor mounts. What year are these mount from?? If I use these and the adapter plate to the 5.3, will a 2004 Silverado manifold, a/c and ps pump fit without cutting the frame?? I was going to use the '67 type towers but some posts say that I'll need to modify them so the exhaust won't rub. Does anyone have any better pics of the set up I might need. Thanks for the help Attached Images __________________ It's Not Rust, It's Patina!! 1967 C 20 Large Window, 700R4, 283, Tilt, PS, PB.....A Rusty But Trusty Gas Hog 2008 Silverado LTZ 1500 4x4 Last edited by Prathbun; 02-01-2009 at 12:39 PM. Reason: Better Description of Posts

02-01-2009, 12:16 PM	#7
Prathbun Registered User Join Date: Jul 2007 Location: Poplar Bluff, MO 63901 Posts: 293	Re: Motor Mounts - What Are They From?? Thanks for the replies. I have grown weary of trying to figure out exactly what I need. It appears that tons of other people have had these questions as well. I have given in and ordered these mounts from www.performanceonline.com. SKU: ECM6372 Product: 1963-72 CHEVY TRUCK, ENGINE MOUNTING BRACKETS, V-8 (BOLT IN)(ECM6372) #1680 Next I'll need to work on the block plates Attached Images __________________ It's Not Rust, It's Patina!! 1967 C 20 Large Window, 700R4, 283, Tilt, PS, PB.....A Rusty But Trusty Gas Hog 2008 Silverado LTZ 1500 4x4

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