?s for people with 5.3 engine - The 1947 - Present Chevrolet & GMC Truck Message Board Network

81c10on24s · 03-07-2008, 02:43 AM

What motor mounts are you using? And what all do I need to get that motor in a 81-87 and get it running? Any help will be greatly appreciated.

**Captkaos** · 03-07-2008, 02:46 AM

I am using S&P mounts for my LS motor.
You need a harness and supply/return lines.

81c10on24s · 03-07-2008, 02:51 AM

By S&P you mean street and performance, Do they weld in or bolt in? So I dont need anything special to make it work.

**Captkaos** · 03-07-2008, 03:56 AM

Sorry, yest Street and Performance, they are bolt on:

Someone posted another place that had them in another thread too.

**Captkaos** · 03-07-2008, 05:25 AM

This was the other place:
http://www.brphotrods.com/Truck%20LS1.html

They are comparable to the natural ones S&P have in price.

81c10on24s · 03-07-2008, 08:09 AM

What about tranny crossmember, driveshaft, hooking it up to the gauges, and possibly everything I could possibly run into while installing this?

bowtieguy79 · 03-07-2008, 08:38 AM

Quote:

Originally Posted by 81c10on24s

What about tranny crossmember, driveshaft, hooking it up to the gauges, and possibly everything I could possibly run into while installing this?

I have a spread sheet I made while doing my build. Wasted Income on this site gave me his build spread sheet, and I used his to get me rolling. If you would like a copy of it, send me a PM with your email addy and I'll send it your way.

A link to my build is in my sig.

ps, I got my engine adaptors from Summit for like $45. And just moved my old cross member back, and drilled new holes.

If you don't have your engine, try to either get a wrecked truck, or a COMPLETE pull out. If you have the harness that can save you money when having it reworked vs buying a new one.

Wasted Income · 03-07-2008, 07:50 PM

I made my own mounts, for free. Gotta love access to a CNC plasma and a bridgeport.

Anyways, I made mine to keep the engine / tranny in the same spot as the 350/700 I took out of it. That way, the driveshaft is the same length. Just had to move the trans x-member since the 4L60 has a different mounting location than the 700.

81c10on24s · 03-13-2008, 07:01 AM

What is everyone using for radiators and fans? Are you converting over to electric fan or using the stock fan for the 5.3?

gchemist · 03-13-2008, 07:13 AM

77 with an LS1.

http://www.hotrodlane.cc/77chevytruck/77chevy.htm

tyjoja · 03-13-2008, 08:29 AM

what cubic inch is a 5.3? thanks bob

Mickey_D · 03-13-2008, 01:11 PM

Quote:

Originally Posted by tyjoja

what cubic inch is a 5.3? thanks bob

http://www.google.com/search?hl=en&q...es&btnG=Search

gimmie11s · 03-13-2008, 09:08 AM

i plan on bolting my 5.3 to my t350-im going carb--.... shouldn't have to do anything at all with crossmembers or driveshafts...

it will basically just be a motor swap.

bigblock73 · 03-13-2008, 03:33 PM

Another good how-to article

http://www.73-87.com/7387garage/drivetrain/ls1.htm

03-07-2008, 02:43 AM	#1
81c10on24s Registered User Join Date: Aug 2007 Location: Harvest,AL Posts: 20	?s for people with 5.3 engine What motor mounts are you using? And what all do I need to get that motor in a 81-87 and get it running? Any help will be greatly appreciated.

03-07-2008, 02:46 AM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: ?s for people with 5.3 engine I am using S&P mounts for my LS motor. You need a harness and supply/return lines. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

03-07-2008, 02:51 AM	#3
81c10on24s Registered User Join Date: Aug 2007 Location: Harvest,AL Posts: 20	Re: ?s for people with 5.3 engine By S&P you mean street and performance, Do they weld in or bolt in? So I dont need anything special to make it work.

03-07-2008, 03:56 AM	#4
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: ?s for people with 5.3 engine Sorry, yest Street and Performance, they are bolt on: Someone posted another place that had them in another thread too. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

03-07-2008, 05:25 AM	#5
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: ?s for people with 5.3 engine This was the other place: http://www.brphotrods.com/Truck%20LS1.html They are comparable to the natural ones S&P have in price. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

03-07-2008, 08:09 AM	#6
81c10on24s Registered User Join Date: Aug 2007 Location: Harvest,AL Posts: 20	Re: ?s for people with 5.3 engine What about tranny crossmember, driveshaft, hooking it up to the gauges, and possibly everything I could possibly run into while installing this?

03-07-2008, 07:50 PM	#8
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: ?s for people with 5.3 engine I made my own mounts, for free. Gotta love access to a CNC plasma and a bridgeport. Anyways, I made mine to keep the engine / tranny in the same spot as the 350/700 I took out of it. That way, the driveshaft is the same length. Just had to move the trans x-member since the 4L60 has a different mounting location than the 700. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

03-13-2008, 07:01 AM	#9
81c10on24s Registered User Join Date: Aug 2007 Location: Harvest,AL Posts: 20	Re: ?s for people with 5.3 engine What is everyone using for radiators and fans? Are you converting over to electric fan or using the stock fan for the 5.3?

03-13-2008, 07:13 AM	#10
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: ?s for people with 5.3 engine 77 with an LS1. http://www.hotrodlane.cc/77chevytruck/77chevy.htm __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

03-13-2008, 08:29 AM	#11
tyjoja Registered User Join Date: Jan 2007 Location: albany oregon Posts: 168	Re: ?s for people with 5.3 engine what cubic inch is a 5.3? thanks bob

03-13-2008, 09:08 AM	#13
gimmie11s Registered User Join Date: Jun 2007 Location: so cal Posts: 59	Re: ?s for people with 5.3 engine i plan on bolting my 5.3 to my t350-im going carb--.... shouldn't have to do anything at all with crossmembers or driveshafts... it will basically just be a motor swap. __________________ '84 M1008.. crawl.. 6.2 diesel/6" lift/4.56's '81 c10 swb.. cruise.. ls5.3/th350/20"billet/custom paint '92 eclipse gsx.. 11.6@124.. '06 cummins dodge.. tow..:couldnt afford a chevy club:

03-13-2008, 03:33 PM	#14
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	Re: ?s for people with 5.3 engine Another good how-to article http://www.73-87.com/7387garage/drivetrain/ls1.htm __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

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