truck manifold to car manifold swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hellbent72 · 02-02-2014, 09:58 PM

What all is needed to swap a truck manifold over to the lower profile car manifold.
I haven't got an engine yet but I'm wanting as much hood clearence as possible and the car manifold looks a lot shorter compared to the truck style. Thanks

Andy4639 · 02-02-2014, 10:03 PM

Should just need injectors form car and throttle body. Get the complete intake if possible. Oh yea you will need new injector wiring plugs if not mistaken. Some one else more verse will come along shortly and clarify all this.

cableguy0 · 02-02-2014, 10:37 PM

You need the car accessories too. The car throttle body will interfere with the truck accessories. There is still plenty of hood clearance with the truck manifold in these old trucks. I really wouldn't bother. All of the car stuff is more expensive and not really worth the extra price considering the power guys are managing with truck stuff.

Indian113 · 02-02-2014, 10:35 PM

I think you will also need to change your brackets and water pump, I could be wrong as I haven't tried it myself. You will lose torque if you do it.

akdg87 · 02-02-2014, 10:53 PM

How to:

http://www.ls1truck.com/forums/front...take-swap.html

akdg87 · 02-02-2014, 10:58 PM

I did it on mine; used an ls1 waterpump with spacers, relocated idler pulley and cut off the one on the truck Acc bracket. It's fairly easy to do. Swap injector plugs as well unless you don't have a harness yet.

BR3W CITY · 02-03-2014, 01:59 AM

Quote:

Originally Posted by hellbent72

What all is needed to swap a truck manifold over to the lower profile car manifold.
I haven't got an engine yet but I'm wanting as much hood clearence as possible and the car manifold looks a lot shorter compared to the truck style. Thanks

Whats your fear of hood clearance? In most of these trucks, the engine sits low enough in the cradle that hood clearance isn't a problem.

On my 66, I could fit a hi-ram intake without hitting the hood dam near.

**truckdude239** · 02-03-2014, 10:09 AM

yeah mine is so far fromt he hood on my 71 it not funny using the truck manifold

Jon01 · 02-03-2014, 07:41 PM

You'll also need to make some tune adjustments.

02-02-2014, 09:58 PM	#1
hellbent72 Registered User Join Date: May 2009 Location: wichita ks Posts: 100	truck manifold to car manifold swap What all is needed to swap a truck manifold over to the lower profile car manifold. I haven't got an engine yet but I'm wanting as much hood clearence as possible and the car manifold looks a lot shorter compared to the truck style. Thanks

02-02-2014, 10:03 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: truck manifold to car manifold swap Should just need injectors form car and throttle body. Get the complete intake if possible. Oh yea you will need new injector wiring plugs if not mistaken. Some one else more verse will come along shortly and clarify all this. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

02-02-2014, 10:37 PM	#3
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	Re: truck manifold to car manifold swap You need the car accessories too. The car throttle body will interfere with the truck accessories. There is still plenty of hood clearance with the truck manifold in these old trucks. I really wouldn't bother. All of the car stuff is more expensive and not really worth the extra price considering the power guys are managing with truck stuff. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

02-02-2014, 10:35 PM	#4
Indian113 Registered User Join Date: Sep 2009 Location: Monroe,Iowa Posts: 4,370	Re: truck manifold to car manifold swap I think you will also need to change your brackets and water pump, I could be wrong as I haven't tried it myself. You will lose torque if you do it.

02-02-2014, 10:53 PM	#5
akdg87 Registered User Join Date: Sep 2013 Location: fairbanks, ak Posts: 339	Re: truck manifold to car manifold swap How to: http://www.ls1truck.com/forums/front...take-swap.html __________________ build thread 1955 cameo turbo lsx 1993 K1500 Blazer 5.3/4L80e 2009 CTSV Sedan

02-02-2014, 10:58 PM	#6
akdg87 Registered User Join Date: Sep 2013 Location: fairbanks, ak Posts: 339	Re: truck manifold to car manifold swap I did it on mine; used an ls1 waterpump with spacers, relocated idler pulley and cut off the one on the truck Acc bracket. It's fairly easy to do. Swap injector plugs as well unless you don't have a harness yet. __________________ build thread 1955 cameo turbo lsx 1993 K1500 Blazer 5.3/4L80e 2009 CTSV Sedan

02-03-2014, 10:09 AM	#8
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: truck manifold to car manifold swap yeah mine is so far fromt he hood on my 71 it not funny using the truck manifold __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

02-03-2014, 07:41 PM	#9
Jon01 Registered User Join Date: Nov 2012 Location: West Des Moines, Iowa Posts: 450	Re: truck manifold to car manifold swap You'll also need to make some tune adjustments.



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