1966 c-10 v-8 mounts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Breadtruck from Hell · 12-20-2019, 01:09 AM

Installing a 383 in my 66 Panel,been off the road since 1997, I threw away the engine mounts years ago. I had a 350 in it,was pulled out in 1997 so no mounts to match for new ones. so I figured I must have had 6 cylinder mounts on it as the mount pedestals have only 1 hole on the flat surface. The engine I now have is about 450 horse so I got the aftermarket pedestals for regular mounts with the long bolt sideways. they were a ***** to install had to actually drill new bolt holes in the frame. The engine now tilts upward looks like a altered, doesnt look right. I am concerned and have not driven it yet.Has anyone had a similar issue? Thanks for any comments,Paul

**Chevy Fleetside** · 12-20-2019, 01:45 AM

If you use late model engine mounts and perches, you have to trim the upper frame.

**PGSigns** · 12-20-2019, 07:45 AM

Post some pictures. That will help. All you needed to do was get a new set of mounts for the side of the engine and bolt the engine into the truck with the perches that were in it. The inline 6 and the V8 used the same perches. Note that the 292 has a different mount on one side. If it were mine I would put the stock perches back in and put the correct mounts on the engine and be done.
Jimmy
Here is a link to show the mounts that go on the engine for the stock perches.
https://www.summitracing.com/parts/p...del/c10-pickup

Breadtruck from Hell · 12-20-2019, 06:21 PM

These were advertised for a 66, when I mocked them up they lined up with the factory bolt holes in the frame,once the engine was bolted up to the mounts
they were off, so I drilled new holes. They are the short urethane mounts, I rather not use rubber mounts , It would be a lot of work as I have the brake lines going thru on one side and the engine is ready to fire, guess I am in
denial and should go back to stock,I would have to lift the engine up quite a bit,Thanks guysl

LTZMAN · 12-20-2019, 09:37 PM

Im going through this now with my 66, I cut my drivers side engine stand a few years back to clear a header tube. What I learned while looking for the drivers side stand was, I had 6 cyl stands. These 6 cyl stand will be in the back hole under the oil pan. The v8 stands I picked up Saturday mount in the front hole under the oil pan ,This hole is closer to the frame rail.

**Captainfab** · 12-21-2019, 12:08 AM

What you are talking about is true for the '67-'72 trucks but NOT the '63-'66 trucks. The 230/250 I6 and the small blocks use the exact same engine mounts the exact same engine mount brackets and in the exact same rear location.

Quote:

Originally Posted by LTZMAN

Im going through this now with my 66, I cut my drivers side engine stand a few years back to clear a header tube. What I learned while looking for the drivers side stand was, I had 6 cyl stands. These 6 cyl stand will be in the back hole under the oil pan. The v8 stands I picked up Saturday mount in the front hole under the oil pan ,This hole is closer to the frame rail.

LTZMAN · 12-21-2019, 08:13 AM

Let's say that's true, and it may be. Then why would chevy
Have two locations drilled in the chassis that matches
Two different stands in a 66.

**Captainfab** · 12-21-2019, 10:22 PM

Yes it is true.

The forward holes in the passenger side frame are used for the 292 I6. I assume they are present in the drivers side frame rail as I am thinking they used the same stamping for both frame rails. Just the forming was the opposite direction. And then there is the GMC V6. I honestly do not know which holes those use as I have never owned a GMC with a V6 still in it.

LTZMAN · 12-21-2019, 11:08 PM

This is my mockup with the v8 stands, the bad news is
I already had my exhaust finished. These stands raised the engine and moved it forward 3/4 in.

Softpatch · 12-22-2019, 01:03 AM

I just went through this in my 66
a big block came out and i installed a Late model 350 V8
I had to make accommodations
.
It was hitting the manifolds and wrong angle on the pad
Had to add !" on top and 3 " on bottom
to use both Top two Bolt holes and The lower sloted Bolt hole...

I don't know if this is my final Mount's..... But it does the job
.

.

**PGSigns** · 12-23-2019, 11:05 AM

Soft patch I would just get a set of stock stands and put in the truck. They are not that hard to find and your engine will be where it should be.
Jimmy

12-20-2019, 01:09 AM	#1
Breadtruck from Hell Registered User Join Date: Mar 2019 Location: martinez Posts: 4	1966 c-10 v-8 mounts Installing a 383 in my 66 Panel,been off the road since 1997, I threw away the engine mounts years ago. I had a 350 in it,was pulled out in 1997 so no mounts to match for new ones. so I figured I must have had 6 cylinder mounts on it as the mount pedestals have only 1 hole on the flat surface. The engine I now have is about 450 horse so I got the aftermarket pedestals for regular mounts with the long bolt sideways. they were a ***** to install had to actually drill new bolt holes in the frame. The engine now tilts upward looks like a altered, doesnt look right. I am concerned and have not driven it yet.Has anyone had a similar issue? Thanks for any comments,Paul

12-20-2019, 01:45 AM	#2
Chevy Fleetside Registered User Join Date: Sep 2006 Location: San Francisco Posts: 4,779	Re: 1966 c-10 v-8 mounts If you use late model engine mounts and perches, you have to trim the upper frame. __________________ "A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536

12-20-2019, 07:45 AM	#3
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: 1966 c-10 v-8 mounts Post some pictures. That will help. All you needed to do was get a new set of mounts for the side of the engine and bolt the engine into the truck with the perches that were in it. The inline 6 and the V8 used the same perches. Note that the 292 has a different mount on one side. If it were mine I would put the stock perches back in and put the correct mounts on the engine and be done. Jimmy Here is a link to show the mounts that go on the engine for the stock perches. https://www.summitracing.com/parts/p...del/c10-pickup __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

12-20-2019, 06:21 PM	#4
Breadtruck from Hell Registered User Join Date: Mar 2019 Location: martinez Posts: 4	Re: 1966 c-10 v-8 mounts These were advertised for a 66, when I mocked them up they lined up with the factory bolt holes in the frame,once the engine was bolted up to the mounts they were off, so I drilled new holes. They are the short urethane mounts, I rather not use rubber mounts , It would be a lot of work as I have the brake lines going thru on one side and the engine is ready to fire, guess I am in denial and should go back to stock,I would have to lift the engine up quite a bit,Thanks guysl

12-20-2019, 09:37 PM	#5
LTZMAN Registered User Join Date: Nov 2019 Location: Greenville SC Posts: 55	Re: 1966 c-10 v-8 mounts Im going through this now with my 66, I cut my drivers side engine stand a few years back to clear a header tube. What I learned while looking for the drivers side stand was, I had 6 cyl stands. These 6 cyl stand will be in the back hole under the oil pan. The v8 stands I picked up Saturday mount in the front hole under the oil pan ,This hole is closer to the frame rail.

12-21-2019, 08:13 AM	#7
LTZMAN Registered User Join Date: Nov 2019 Location: Greenville SC Posts: 55	Re: 1966 c-10 v-8 mounts Let's say that's true, and it may be. Then why would chevy Have two locations drilled in the chassis that matches Two different stands in a 66.

12-21-2019, 10:22 PM	#8
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: 1966 c-10 v-8 mounts Yes it is true. The forward holes in the passenger side frame are used for the 292 I6. I assume they are present in the drivers side frame rail as I am thinking they used the same stamping for both frame rails. Just the forming was the opposite direction. And then there is the GMC V6. I honestly do not know which holes those use as I have never owned a GMC with a V6 still in it. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

12-21-2019, 11:08 PM	#9
LTZMAN Registered User Join Date: Nov 2019 Location: Greenville SC Posts: 55	Re: 1966 c-10 v-8 mounts This is my mockup with the v8 stands, the bad news is I already had my exhaust finished. These stands raised the engine and moved it forward 3/4 in. Attached Images Last edited by LTZMAN; 12-21-2019 at 11:14 PM.

12-22-2019, 01:03 AM	#10
Softpatch Registered User Join Date: Sep 2013 Location: Vashon WA Posts: 969	Re: 1966 c-10 v-8 mounts I just went through this in my 66 a big block came out and i installed a Late model 350 V8 I had to make accommodations . It was hitting the manifolds and wrong angle on the pad Had to add !" on top and 3 " on bottom to use both Top two Bolt holes and The lower sloted Bolt hole... I don't know if this is my final Mount's..... But it does the job . . __________________ My Spelling is Not Incorrect...It's 'Creative' . . 1966 C-20 .....Swap 91 G-30(5.7 FI)/4L80E http://67-72chevytrucks.com/vboard/s...d.php?t=789617 59 Viking Revival .. http://67-72chevytrucks.com/vboard/s...d.php?t=632341

12-23-2019, 11:05 AM	#11
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: 1966 c-10 v-8 mounts Soft patch I would just get a set of stock stands and put in the truck. They are not that hard to find and your engine will be where it should be. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic



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