Question for LS swap guys. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

raidmagic · 05-02-2018, 08:34 PM

How close are your heads to your firewall and did you modify your firewall? I'm mocking everything up in my parts truck and they are so so close. I'm thinking about not using the stock transmission location but I don't want to get into reinventing the wheel. Pics of what you have and how they fit would be awesome. Thanks.

Pro Performance · 05-02-2018, 08:36 PM

Who's mounts are you using? We use the stock perches and the Dirty Dingo mounts. It allows you to move the engine forward.

http://www.azproperformance.com/Dirt...67-72-C10.html

**PGSigns** · 05-02-2018, 08:38 PM

That looks a lot further back than most. Have you looked through the LS swap section? Lots of pictures in there.
Jimmy

Pro Performance · 05-02-2018, 08:45 PM

I would look at putting the stock engine stands in, and using the Dirty Dingo mounts that allow the flexibility you need to move forward.

steven03 · 05-02-2018, 08:52 PM

I have ict billet mounts with the factory stands and original style sbc motor mounts. They were like 30 bucks. They put the engine in the factory position and also have some adjustability. I have plenty of room between the firewall and heads

raidmagic · 05-02-2018, 09:13 PM

I have stock Vette mounts on there right now. I could move it wherever I wanted but I have it bolted to the stock transmission in it's stock location. I have to make a trans mount anyway because I'm swapping a 4 speed in it too so I won't be using the stock trans mount. I was just doing it this way figuring the stock trans location would be a good starting point.

raidmagic · 05-02-2018, 09:14 PM

Quote:

Originally Posted by PGSigns

That looks a lot further back than most. Have you looked through the LS swap section? Lots of pictures in there.
Jimmy

I didn't know there was one. I will go look for it now. Thanks.

raidmagic · 05-02-2018, 09:17 PM

Quote:

Originally Posted by Pro Performance

Who's mounts are you using? We use the stock perches and the Dirty Dingo mounts. It allows you to move the engine forward.

http://www.azproperformance.com/Dirt...67-72-C10.html

Those are nice but I'm forging my own path for the mounts. I am going to use the stock low mount AC compressor. It fits nicely and I don't want it up high.

dmulally · 05-02-2018, 09:42 PM

Probably not worth a thread on it's own...

but does anybody know where to get the mounts for a 66 C20 that go from the frame to the cross member from? Mine looks to have been doctored for a 250 inline six for some reason and now won't line up with the V8. The drivers side looks fine but somebody has clearly modified the passenger side one.

**The Rocknrod** · 05-02-2018, 09:59 PM

There is actually a whole LS swap section that has probably all the answers, but that's just where I would look. http://67-72chevytrucks.com/vboard/f...play.php?f=206

**Captainfab** · 05-02-2018, 11:36 PM

It sounds like your brackets may be for the 292 I6. The passenger side is different from the drivers side. I do not know of anyone reproducing the original '63-'66 230/250 I6/V8 and '67-'72 230/250 I6 engine mount brackets. You might try looking here on the forum in the '60-'66 classifieds.

Quote:

Originally Posted by dmulally

Probably not worth a thread on it's own...

but does anybody know where to get the mounts for a 66 C20 that go from the frame to the cross member from? Mine looks to have been doctored for a 250 inline six for some reason and now won't line up with the V8. The drivers side looks fine but somebody has clearly modified the passenger side one.

raidmagic · 05-03-2018, 07:29 AM

Quote:

Originally Posted by The Rocknrod

There is actually a whole LS swap section that has probably all the answers, but that's just where I would look. http://67-72chevytrucks.com/vboard/f...play.php?f=206

As I said above I wasn't aware of that but thanks for the condescending post, very helpful.

**The Rocknrod** · 05-03-2018, 08:34 AM

Quote:

Originally Posted by raidmagic

As I said above I wasn't aware of that but thanks for the condescending post, very helpful.

Sorry I didn't read where you said that previously, we are not condescending here.

Genuine GM · 05-03-2018, 01:56 PM

Go here and scroll down for some of mine.

http://67-72chevytrucks.com/vboard/s...1&postcount=25

dmulally · 05-03-2018, 04:24 PM

Quote:

Originally Posted by Captainfab

It sounds like your brackets may be for the 292 I6. The passenger side is different from the drivers side. I do not know of anyone reproducing the original '63-'66 230/250 I6/V8 and '67-'72 230/250 I6 engine mount brackets. You might try looking here on the forum in the '60-'66 classifieds.

It had a 250 in it as I still have it on the shed floor. Something has been butchered though.

I may just have to repair mine. It looks as if I bent it out at the bottom it would fit as they line up fore and aft. Just has a 10mm gap between the bracket and the engine mount.

I'll have to get busy with the grinder, vice and welder me thinks.

https://imgur.com/TOfudno

**Captainfab** · 05-04-2018, 12:02 AM

That is an engine mount bracket for a small block in a '67-'72. They are designed to install in the forward location. That is why they are not long enough to be used in the rear location as is needed in the '63-'66 trucks.

Quote:

Originally Posted by dmulally

It had a 250 in it as I still have it on the shed floor. Something has been butchered though.

I may just have to repair mine. It looks as if I bent it out at the bottom it would fit as they line up fore and aft. Just has a 10mm gap between the bracket and the engine mount.

I'll have to get busy with the grinder, vice and welder me thinks.

https://imgur.com/TOfudno

dmulally · 05-04-2018, 01:40 PM

Quote:

Originally Posted by Captainfab

That is an engine mount bracket for a small block in a '67-'72. They are designed to install in the forward location. That is why they are not long enough to be used in the rear location as is needed in the '63-'66 trucks.

Well that's just crap.

Any advice of the best way out of this pickle? Or should I just modify to suit? I'm in rural New Zealand so it's always tricky getting parts.

Thanks for your help though.

raidmagic · 05-04-2018, 11:24 PM

Quote:

Originally Posted by dmulally

Well that's just crap.

Any advice of the best way out of this pickle? Or should I just modify to suit? I'm in rural New Zealand so it's always tricky getting parts.

Thanks for your help though.

I would just modify it. Shouldn't take much.

Mathew21 · 05-05-2018, 08:18 AM

Quote:

Originally Posted by Pro Performance

I would look at putting the stock engine stands in, and using the Dirty Dingo mounts that allow the flexibility you need to move forward.

This is the set up I used.

**66 C10 383** · 05-06-2018, 09:19 PM

The Early Classic mounts are very close to the C20 mounts and allow use of the lower AC position.

https://www.earlyclassic.com/node/1355

I was in the same situation, wanted to retain the stock 5.3 AC compressor and with enough research, that's the answer I came up with.

You can see it in Hart Rod's SuperBurb build.

http://67-72chevytrucks.com/vboard/s...d.php?t=200387

raidmagic · 05-07-2018, 07:42 AM

Quote:

Originally Posted by 66 C10 383

The Early Classic mounts are very close to the C20 mounts and allow use of the lower AC position.

https://www.earlyclassic.com/node/1355

I was in the same situation, wanted to retain the stock 5.3 AC compressor and with enough research, that's the answer I came up with.

You can see it in Hart Rod's SuperBurb build.

http://67-72chevytrucks.com/vboard/s...d.php?t=200387

Thanks for the link.

05-02-2018, 08:34 PM	#1
raidmagic Registered User Join Date: Jan 2015 Location: Tampa, Fl. Posts: 426	Question for LS swap guys. How close are your heads to your firewall and did you modify your firewall? I'm mocking everything up in my parts truck and they are so so close. I'm thinking about not using the stock transmission location but I don't want to get into reinventing the wheel. Pics of what you have and how they fit would be awesome. Thanks.

05-02-2018, 08:36 PM	#2
Pro Performance Registered User Join Date: Aug 2010 Location: AZ Posts: 3,069	Re: Question for LS swap guys. Who's mounts are you using? We use the stock perches and the Dirty Dingo mounts. It allows you to move the engine forward. http://www.azproperformance.com/Dirt...67-72-C10.html

05-02-2018, 08:38 PM	#3
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Question for LS swap guys. That looks a lot further back than most. Have you looked through the LS swap section? Lots of pictures in there. 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

05-02-2018, 08:45 PM	#4
Pro Performance Registered User Join Date: Aug 2010 Location: AZ Posts: 3,069	Re: Question for LS swap guys. I would look at putting the stock engine stands in, and using the Dirty Dingo mounts that allow the flexibility you need to move forward.

05-02-2018, 08:52 PM	#5
steven03 Registered User Join Date: Jun 2015 Location: nj Posts: 32	Re: Question for LS swap guys. I have ict billet mounts with the factory stands and original style sbc motor mounts. They were like 30 bucks. They put the engine in the factory position and also have some adjustability. I have plenty of room between the firewall and heads

05-02-2018, 09:13 PM	#6
raidmagic Registered User Join Date: Jan 2015 Location: Tampa, Fl. Posts: 426	Re: Question for LS swap guys. I have stock Vette mounts on there right now. I could move it wherever I wanted but I have it bolted to the stock transmission in it's stock location. I have to make a trans mount anyway because I'm swapping a 4 speed in it too so I won't be using the stock trans mount. I was just doing it this way figuring the stock trans location would be a good starting point.

05-02-2018, 09:42 PM	#9
dmulally Registered User Join Date: Feb 2018 Location: Shannon, New Zealand Posts: 31	Re: Question for LS swap guys. Probably not worth a thread on it's own... but does anybody know where to get the mounts for a 66 C20 that go from the frame to the cross member from? Mine looks to have been doctored for a 250 inline six for some reason and now won't line up with the V8. The drivers side looks fine but somebody has clearly modified the passenger side one.

05-02-2018, 09:59 PM	#10
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Question for LS swap guys. There is actually a whole LS swap section that has probably all the answers, but that's just where I would look. http://67-72chevytrucks.com/vboard/f...play.php?f=206 __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

05-03-2018, 01:56 PM	#14
Genuine GM Registered User Join Date: May 2009 Location: Unincorporated County, TX Posts: 172	Re: Question for LS swap guys. Go here and scroll down for some of mine. http://67-72chevytrucks.com/vboard/s...1&postcount=25 __________________ Don't let my username fool you, I have become brand blind. Cool is cool, period. 1965 C-10 - "Whipping Post" 1958 Biscayne - "Ruby" 1961 IH Scout 80 - "Gaucho" (My wife's new project) 1938 Chevy - unstarted project.

05-06-2018, 09:19 PM	#20
66 C10 383 Senior Member Join Date: Aug 2012 Location: Somewhere In So. IL. Posts: 412	Re: Question for LS swap guys. The Early Classic mounts are very close to the C20 mounts and allow use of the lower AC position. https://www.earlyclassic.com/node/1355 I was in the same situation, wanted to retain the stock 5.3 AC compressor and with enough research, that's the answer I came up with. You can see it in Hart Rod's SuperBurb build. http://67-72chevytrucks.com/vboard/s...d.php?t=200387 __________________ Doug Old Build Thread - 383/T56 http://www.67-72chevytrucks.com/vboa...d.php?t=540838 Updated Build Thread - Modern Relic - 66 C10 536 Dark Aqua 5.3/4L60E - BTR Stage IV Truck Cam - Vintage Air - Dakota Digital http://67-72chevytrucks.com/vboard/s...d.php?t=778784



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