Sparky's 1978 Silverado Build "Addiction" - Page 13 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Dads79GMC** · 02-15-2019, 12:56 PM

Yesterday I received a set of 73-87 LS Engine Mounts from Hedman Performance Group. I swapped out the Dirty Dingo's last night with the Hedman's to see how they'd work with this application. I like the Dirty Dingo's and will use them on another LS application, but for this one, I need to go a little bit forward and up in order to gain some space for hiding the coils behind the engine. It looks great. Downside, I'll have to have my driveshaft lengthened about an inch. I will pull the engine this weekend and get it cleaned up before I paint it. This will also give me a chance clean the frame as well. If I wanted to move forward another half inch, I could switch around the mounts. Thanks Mike

Pictures:
1-2. Hedman info
3. Engine location after swap
4. Engine location before swap
5. Pic of mounts

**Dads79GMC** · 02-15-2019, 01:04 PM

Here are some more pics. I think the driveshaft is a bit short, what do you professionals think? Thanks Mike

Pictures:
1. For some reason, engine sits more level now (3 degrees)
2. Driveshaft???
3. Driveshaft 2.5" into tail housing of 4L60E

aggie91 · 02-15-2019, 03:37 PM

While I am not a professional driveshaft guy, I would think that as long as the yoke is in the bushing of the tail shaft housing and is supported by the bushing more than it is not supported, I would think it is OK at that spot. Does that make sense?

**Dads79GMC** · 02-15-2019, 03:41 PM

Quote:

Originally Posted by aggie91

While I am not a professional driveshaft guy, I would think that as long as the yoke is in the bushing of the tail shaft housing and is supported by the bushing more than it is not supported, I would think it is OK at that spot. Does that make sense?

Aggie91, make sense. I'll probably bring the driveshaft to the driveshaft shop with the tape on it and see what they say.

**Dads79GMC** · 02-16-2019, 10:24 PM

Today I spent most of the day running around town looking for cleaner, paint, shop towels and another engine stand. Also had a visitor so spent another 2 hours BS'ing in the shop!!!! OK, I did get the engine and trans pulled, trans separated and each on a stand for cleaning. I did get the LS pretty clean and will get the trans cleaned tomorrow, then hopefully get both painted by the end of the day. Yesterday I ordered a new trans pain with drain plug, so I'll swap that out when it comes in a couple days.

Pictures:
1. Engine and trans just pulled and on temporary wheels.
2-3. Engine and trans on their stands
4. Clean engine.

See you tomorrow. Thanks Mike

MrFinland · 02-17-2019, 01:30 PM

Very nice work Mike! ...about your driveshaft problems... I think about if, can you move the engine backwards to make the driveshaft better or will the engine come too close to the firewall? This is perhaps a crazy idea but came to mind.

**hatzie** · 02-17-2019, 02:12 PM

The suspension will sag and the driveshaft will seat deeper into the tailhousing once the bed, cab, and nose are in place.

I would wait til the body is on the frame before you declare it too short.

**Dads79GMC** · 02-17-2019, 07:34 PM

Quote:

Originally Posted by MrFinland

Very nice work Mike! ...about your driveshaft problems... I think about if, can you move the engine backwards to make the driveshaft better or will the engine come too close to the firewall? This is perhaps a crazy idea but came to mind.

Thanks MrFinland! I'm gonna keep the engine where it is so that I can get the coils in behind it.

Quote:

Originally Posted by hatzie

The suspension will sag and the driveshaft will seat deeper into the tailhousing once the bed, cab, and nose are in place.

I would wait til the body is on the frame before you declare it too short.

Hatzie, you may be correct, however, the rear is aired out

Thanks Mike

**Dads79GMC** · 02-17-2019, 07:43 PM

It was a good day. I didn't get the transmission painted because the paint didn't come in to Napa!

However, I did get the engine taped off and painted after I gave it a quick once over cleaning this morning. Valve covers are temporary until I get a set of factory 70's 350 valve covers. I want the covers that have the wiring loom attachment so that I can attach the injector loom.

Thanks Mike

808_67C10 · 02-17-2019, 07:45 PM

I was under my truck yesterday and I have about the same amount of space you have with regard to the shaft/transmission... I don't or never had any issues.

It took everything in my power not to make a shaft/tranny joke.

808_67C10 · 02-17-2019, 07:46 PM

Quote:

Originally Posted by Dads79GMC

It was a good day. I didn't get the transmission painted because the paint didn't come in to Napa!

However, I did get the engine taped off and painted after I gave it a quick once over cleaning this morning. Valve covers are temporary until I get a set of factory 70's 350 valve covers. I want the covers that have the wiring loom attachment so that I can attach the injector loom.

Thanks Mike

Wow Mike, that is clean!!!

**Dads79GMC** · 02-17-2019, 07:46 PM

It's all about driveshaft penetration!

**Dads79GMC** · 02-17-2019, 07:47 PM

Quote:

Originally Posted by 808_67C10

Wow Mike, that is clean!!!

Thanks Sir

moregrip · 02-17-2019, 11:14 PM

Quote:

Originally Posted by Dads79GMC

It was a good day. I didn't get the transmission painted because the paint didn't come in to Napa!

However, I did get the engine taped off and painted after I gave it a quick once over cleaning this morning. Valve covers are temporary until I get a set of factory 70's 350 valve covers. I want the covers that have the wiring loom attachment so that I can attach the injector loom.

Thanks Mike

What's the story with the color? I like it!

**Dads79GMC** · 02-17-2019, 11:15 PM

It's the factory color from I think 78-82, somewhere in there. GM Corporate Blue. Thanks Mike

moregrip · 02-17-2019, 11:18 PM

Quote:

Originally Posted by Dads79GMC

It's the factory color from I think 78-82, somewhere in there. GM Corporate Blue. Thanks Mike

very nice detail

**Dads79GMC** · 02-17-2019, 11:26 PM

Thanks Chief. I like orange and had I stayed with the factory color I would have gone orange. However, since the truck is crimson/white, I thought the factory color (Corporate Blue) would pop against the crimson firewall?

moregrip · 02-17-2019, 11:50 PM

Quote:

Originally Posted by Dads79GMC

Thanks Chief. I like orange and had I stayed with the factory color I would have gone orange. However, since the truck is crimson/white, I thought the factory color (Corporate Blue) would pop against the crimson firewall?

Agreed, much better contrast, I think it will be a classier look (if there is such a thing)

Jaysonb · 02-18-2019, 09:20 AM

Looks good Sir! RCK would be proud! ; )

aggie91 · 02-18-2019, 11:11 AM

I like the look of the LS in corporate blue!

**Dads79GMC** · 02-18-2019, 12:30 PM

Quote:

Originally Posted by moregrip

Agreed, much better contrast, I think it will be a classier look (if there is such a thing)

Quote:

Originally Posted by Jaysonb

Looks good Sir! RCK would be proud! ; )

Quote:

Originally Posted by aggie91

I like the look of the LS in corporate blue!

Thanks fella’s!

**hatzie** · 02-18-2019, 11:08 PM

Quote:

Originally Posted by Dads79GMC

Hatzie, you may be correct, however, the rear is aired out

Then you have the other issue. When you air it up it really really won't be seated deep enough... The propshaft is too short.

**Dads79GMC** · 02-18-2019, 11:14 PM

Quote:

Originally Posted by hatzie

Then you have the other issue. When you air it up it really really won't be seated deep enough... The propshaft is too short.

Very true!

**mongocanfly** · 02-19-2019, 05:00 PM

Here's mine seated in with black tip removed.....

**Dads79GMC** · 02-19-2019, 10:35 PM

Thanks Mongo. I just took the caps off a couple and they fit better. Mike

02-15-2019, 12:56 PM	#301
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" Yesterday I received a set of 73-87 LS Engine Mounts from Hedman Performance Group. I swapped out the Dirty Dingo's last night with the Hedman's to see how they'd work with this application. I like the Dirty Dingo's and will use them on another LS application, but for this one, I need to go a little bit forward and up in order to gain some space for hiding the coils behind the engine. It looks great. Downside, I'll have to have my driveshaft lengthened about an inch. I will pull the engine this weekend and get it cleaned up before I paint it. This will also give me a chance clean the frame as well. If I wanted to move forward another half inch, I could switch around the mounts. Thanks Mike Pictures: 1-2. Hedman info 3. Engine location after swap 4. Engine location before swap 5. Pic of mounts Attached Images __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016 Last edited by Dads79GMC; 02-15-2019 at 04:10 PM. Reason: Forgot picture #1

02-15-2019, 01:04 PM	#302
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" Here are some more pics. I think the driveshaft is a bit short, what do you professionals think? Thanks Mike Pictures: 1. For some reason, engine sits more level now (3 degrees) 2. Driveshaft??? 3. Driveshaft 2.5" into tail housing of 4L60E Attached Images __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016

02-15-2019, 03:37 PM	#303
aggie91 I'm just glad to be here! Join Date: Jan 2008 Location: Longview, TX Posts: 4,788	Re: Sparky's 1978 Silverado Build "Addiction" While I am not a professional driveshaft guy, I would think that as long as the yoke is in the bushing of the tail shaft housing and is supported by the bushing more than it is not supported, I would think it is OK at that spot. Does that make sense? __________________ Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square

02-16-2019, 10:24 PM	#305
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" Today I spent most of the day running around town looking for cleaner, paint, shop towels and another engine stand. Also had a visitor so spent another 2 hours BS'ing in the shop!!!! OK, I did get the engine and trans pulled, trans separated and each on a stand for cleaning. I did get the LS pretty clean and will get the trans cleaned tomorrow, then hopefully get both painted by the end of the day. Yesterday I ordered a new trans pain with drain plug, so I'll swap that out when it comes in a couple days. Pictures: 1. Engine and trans just pulled and on temporary wheels. 2-3. Engine and trans on their stands 4. Clean engine. See you tomorrow. Thanks Mike Attached Images __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016

02-17-2019, 01:30 PM	#306
MrFinland Registered User Join Date: Feb 2017 Location: Kokkola (Kälviä), FINLAND Posts: 348	Re: Sparky's 1978 Silverado Build "Addiction" Very nice work Mike! ...about your driveshaft problems... I think about if, can you move the engine backwards to make the driveshaft better or will the engine come too close to the firewall? This is perhaps a crazy idea but came to mind. __________________ Ilkka 1984 Silverado 6,2d http://67-72chevytrucks.com/vboard/s...d.php?t=731803 BMW 325i 1989 http://67-72chevytrucks.com/vboard/s...d.php?t=797823

02-17-2019, 02:12 PM	#307
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Sparky's 1978 Silverado Build "Addiction" The suspension will sag and the driveshaft will seat deeper into the tailhousing once the bed, cab, and nose are in place. I would wait til the body is on the frame before you declare it too short. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

02-17-2019, 07:43 PM	#309
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" It was a good day. I didn't get the transmission painted because the paint didn't come in to Napa! However, I did get the engine taped off and painted after I gave it a quick once over cleaning this morning. Valve covers are temporary until I get a set of factory 70's 350 valve covers. I want the covers that have the wiring loom attachment so that I can attach the injector loom. Thanks Mike Attached Images __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016

02-17-2019, 07:45 PM	#310
808_67C10 Registered User Join Date: Sep 2011 Location: Hilo, Hawaii Posts: 1,051	Re: Sparky's 1978 Silverado Build "Addiction" I was under my truck yesterday and I have about the same amount of space you have with regard to the shaft/transmission... I don't or never had any issues. It took everything in my power not to make a shaft/tranny joke. __________________ Frank (Hilo, Hawaii) Trucks, Tacos, and Beer go together like Peanut Butter and Ladies! 85 C/10 SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=760383 67 C/10 SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=489298 79 K5 Blazer SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=657461

02-17-2019, 07:46 PM	#312
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" It's all about driveshaft penetration! __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016

02-17-2019, 11:15 PM	#315
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" It's the factory color from I think 78-82, somewhere in there. GM Corporate Blue. Thanks Mike __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016

02-17-2019, 11:26 PM	#317
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" Thanks Chief. I like orange and had I stayed with the factory color I would have gone orange. However, since the truck is crimson/white, I thought the factory color (Corporate Blue) would pop against the crimson firewall? __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016

02-18-2019, 09:20 AM	#319
Jaysonb Registered User Join Date: May 2009 Location: Good Thunder Mn. Posts: 955	Re: Sparky's 1978 Silverado Build "Addiction" Looks good Sir! RCK would be proud! ; ) __________________ 77 k10 winter beater build http://67-72chevytrucks.com/vboard/s...d.php?t=716884 85 GMC short fleet budget build http://67-72chevytrucks.com/vboard/s...d.php?t=714222 80 C10 stepside build http://67-72chevytrucks.com/vboard/s...d.php?t=693848

02-18-2019, 11:11 AM	#320
aggie91 I'm just glad to be here! Join Date: Jan 2008 Location: Longview, TX Posts: 4,788	Re: Sparky's 1978 Silverado Build "Addiction" I like the look of the LS in corporate blue! __________________ Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square

02-19-2019, 05:00 PM	#324
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,671	Re: Sparky's 1978 Silverado Build "Addiction" Here's mine seated in with black tip removed..... Attached Images __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

02-19-2019, 10:35 PM	#325
Dads79GMC Senior Member Join Date: Feb 2008 Location: Des Moines, Iowa Posts: 1,238	Re: Sparky's 1978 Silverado Build "Addiction" Thanks Mongo. I just took the caps off a couple and they fit better. Mike __________________ Instagram @HomeBuiltC10s Dads 79 GMC Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=642929 1978 Silverado Build http://67-72chevytrucks.com/vboard/s...d.php?t=756016 Last edited by Dads79GMC; 02-19-2019 at 11:14 PM.



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