ls1 swap cpp mount question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sbc10guy · 10-23-2013, 10:06 PM

I have ben researching engine mounts for my ls1 69 c10 and ive decided to go with cpp. my question is i see this kit listed all over http://www.classicperform.com/Store/...6772LS1-PK.htm
But i also see an adjustable one http://www.ebay.com/itm/CPP-NEW-LS-E...e3f327&vxp=mtr If i get the first one listed am i going to want the adjustable bracket or should it be fine without? Thanks.

**Clyde65** · 10-24-2013, 08:35 AM

I believe if its an LS1, then you will need the 1st one. If you have a Vortec ( 4.8/5.3/6.0) then you would need the 2nd one. I would also call them and ask, ask for Jeff.

smoky02 · 10-24-2013, 09:00 AM

You know the LS1, 4.8, 5.3, 6.0 all have the same block design right? The motor mount is the same for all of these engines.

69sinker · 10-24-2013, 06:38 PM

I used the first one listed but I also bought adjustable plates so I could move everything back a few inches. The plates were from cutthroat 4x4 but there is a diagram in the FAQ section to make your own. My engine is a 5.7 ls1.

sbc10guy · 10-24-2013, 06:44 PM

Alright i figured the adjustable plates were for the same set up just to move it if desired. Im wondering if i will need them as im going with a t56 and it seems the shifter sits back pretty far as is. I will have to check for that diagram. Thanks for the info.

smoky02 · 10-25-2013, 02:23 AM

There is a kit that moves the shifter to a near stock truck location. But you will need a high hump also.

sbc10guy · 10-25-2013, 07:49 AM

I will have to check into that as well. I have a high hump already for my original old granny low 4 speed. My muncie m21 comes out further back than that did so im hoping it will be close to that but i will have to do some measurements saturday when i get the car.

Jon01 · 10-25-2013, 08:15 AM

I bought the $35 plates off of Ebay and the CPP trans x-member and everything bolted right into place.

sbc10guy · 10-26-2013, 01:54 PM

jon01 this trans x member, was it for a 4l60 or a t56? I am having a hard time finding a trans x member for a t56. Not really any explanation in any of the build threads or parts places I have seen. Just wondering if it can be purchased or has to be built. Thanks.

Jon01 · 10-26-2013, 03:25 PM

-60/80. If memory serves a 56 mounts very similar. You may have to drill new holes for the 56 mount and new holes in the frame but that should be about it.

FLYNAVY30 · 10-26-2013, 03:47 PM

can anyone verify, do those CPP mounts completely eliminate the mount/perch combination of the factory set up?

10-23-2013, 10:06 PM	#1
sbc10guy Registered User Join Date: Sep 2011 Location: Eau Claire, Wisconsin Posts: 415	ls1 swap cpp mount question I have ben researching engine mounts for my ls1 69 c10 and ive decided to go with cpp. my question is i see this kit listed all over http://www.classicperform.com/Store/...6772LS1-PK.htm But i also see an adjustable one http://www.ebay.com/itm/CPP-NEW-LS-E...e3f327&vxp=mtr If i get the first one listed am i going to want the adjustable bracket or should it be fine without? Thanks. __________________ 1969 shortbed c/10 1998 GMC sierra

10-24-2013, 08:35 AM	#2
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: ls1 swap cpp mount question I believe if its an LS1, then you will need the 1st one. If you have a Vortec ( 4.8/5.3/6.0) then you would need the 2nd one. I would also call them and ask, ask for Jeff. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

10-24-2013, 09:00 AM	#3
smoky02 Registered User Join Date: Oct 2003 Location: Sunny, Florida, some might call it South Alabama Posts: 834	Re: ls1 swap cpp mount question You know the LS1, 4.8, 5.3, 6.0 all have the same block design right? The motor mount is the same for all of these engines. __________________ Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart.

10-24-2013, 06:38 PM	#4
69sinker Registered User Join Date: Nov 2012 Location: eldred,il Posts: 503	Re: ls1 swap cpp mount question I used the first one listed but I also bought adjustable plates so I could move everything back a few inches. The plates were from cutthroat 4x4 but there is a diagram in the FAQ section to make your own. My engine is a 5.7 ls1. __________________ My 69 cst lwb 2wd LS1 swap 5.7/4L60e build http://67-72chevytrucks.com/vboard/s...d.php?t=589869

10-24-2013, 06:44 PM	#5
sbc10guy Registered User Join Date: Sep 2011 Location: Eau Claire, Wisconsin Posts: 415	Re: ls1 swap cpp mount question Alright i figured the adjustable plates were for the same set up just to move it if desired. Im wondering if i will need them as im going with a t56 and it seems the shifter sits back pretty far as is. I will have to check for that diagram. Thanks for the info. __________________ 1969 shortbed c/10 1998 GMC sierra

10-25-2013, 02:23 AM	#6
smoky02 Registered User Join Date: Oct 2003 Location: Sunny, Florida, some might call it South Alabama Posts: 834	Re: ls1 swap cpp mount question There is a kit that moves the shifter to a near stock truck location. But you will need a high hump also. __________________ Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart.

10-25-2013, 07:49 AM	#7
sbc10guy Registered User Join Date: Sep 2011 Location: Eau Claire, Wisconsin Posts: 415	Re: ls1 swap cpp mount question I will have to check into that as well. I have a high hump already for my original old granny low 4 speed. My muncie m21 comes out further back than that did so im hoping it will be close to that but i will have to do some measurements saturday when i get the car. __________________ 1969 shortbed c/10 1998 GMC sierra

10-25-2013, 08:15 AM	#8
Jon01 Registered User Join Date: Nov 2012 Location: West Des Moines, Iowa Posts: 450	Re: ls1 swap cpp mount question I bought the $35 plates off of Ebay and the CPP trans x-member and everything bolted right into place.

10-26-2013, 01:54 PM	#9
sbc10guy Registered User Join Date: Sep 2011 Location: Eau Claire, Wisconsin Posts: 415	Re: ls1 swap cpp mount question jon01 this trans x member, was it for a 4l60 or a t56? I am having a hard time finding a trans x member for a t56. Not really any explanation in any of the build threads or parts places I have seen. Just wondering if it can be purchased or has to be built. Thanks. __________________ 1969 shortbed c/10 1998 GMC sierra

10-26-2013, 03:25 PM	#10
Jon01 Registered User Join Date: Nov 2012 Location: West Des Moines, Iowa Posts: 450	Re: ls1 swap cpp mount question -60/80. If memory serves a 56 mounts very similar. You may have to drill new holes for the 56 mount and new holes in the frame but that should be about it.

10-26-2013, 03:47 PM	#11
FLYNAVY30 Registered User Join Date: Apr 2013 Location: Austin, TX Posts: 592	Re: ls1 swap cpp mount question can anyone verify, do those CPP mounts completely eliminate the mount/perch combination of the factory set up?



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