klep2024

LM7 is a 5.3l..LQ4 is a 6.0l

abri

I bought a 5.3lm7 without starter but i have a good old style big one [starter].Will it fit the 5.3 if i cut off that square with hole in it that is protruding from the cast iron block .Thanks for the excellant write up.We think along the same,much more fun than just buying parts and slap it together.regards Abri

fouroff

iTrader: (2)

Great post! Can you tell me what manifolds you used in the picture of the single turbo set up. I'm shoehorning a LQ9 single turbo in a 300zx. I want to use the same layout, but I've been struggling to find the right manifolds to make it work. Do these flow well? Thanks!
Jeff

MeanYellowZ

iTrader: (19)

Those are the C6 vette manifolds flipped upside down. I have used them a few times, they flow just fine for turbo stuff and I have had no issues except for the obvious one....they aren't the best looking setup out there by any means.

black 66 C-10

New to all this. Where can I find the pin outs for a 2003 5.3 Silverado?

fouroff

iTrader: (2)

In the picture you have above of the single turbo set up - what manifolds are you using there? Also, nice post. I appreciate the info. Thanks.

6.0coupe

nice info

Akira_X

how many of those parts would I need if I was to swap a 5.3 into an lt1 body?

IE fuel system ect...

Also could I reuse my a/c compressor from my lt1 on the 5.3?

hotrod1969

I have the chance to purchase a 4.8, 4L60E combo complete from an 2004 truck with 45,000 miles for 1250.00 including computer. I am thinking of installing into a 1967 camaro, 327 4 speed car. What all am I going to have change in order to do this swap. I think I want to change the drive by wire to drive by cable.

What do think???????

LS2-Zx2

so whats the difference between the old 6.0 truck engines and these new 5.3's? the 5.3's make more power or what? (sorry if that to newbie of a question)

holley505

iTrader: (1)

5.3 are plentiful. Millions of them have been produced. So they are cheaper and easy to find at a junk yard.

6.0 is basically the same motor just with 4 inch pistons. Much larger piston give more power per cubic inch and the 6.0 motors can use the NEWER LS3 (6.2) and LS7 (7.0) Heads

All motors smaller than 6.0 can only use the small heads (ie. LS6, LS1 346 motors, 5.3 motors and 4.8 motors)

All these motor come in aluminum or cast iron blocks. Aluminum is about 140lbs lighter, but gives up strength. Iron Blocks are good for another 100 horsepower maxed out better for high boost or big NO2 shots. Aluminum block typically cost more.

Hope that helps.

LS2-Zx2

yeah. im looking to make a "budget" (most likely still expensive) fwd 4 banger to rwd V8 build and i really want to find a cheap wrecked GTO or corvette and just use about everything but if i cant i was wondering about the truck engines in case i go that route. (build will be similar to the civette)

86 g-body

iTrader: (3)

IM THANKING ABOUT PUTTING A 5.3 IN MY G-BODY 86 CUTLASS.WARE ON THE WEB CAN I FIND A PLACE THAT SALES THE WIRE HARNESS FOR MY BUILD?IS THERE A CERTIN ONE I SHOULD LOOK FOR AND WHAT ABOUT MOTOR MOUNTS AND ETC....THANKS LOTS OF HELPFUL INFO KEEP IT COMEING.....IM GONA NEED It!!!!!

david gagnon

iTrader: (1)

hello new member
i am building 1969 nova with 6.0 twin turbo . need to know about fuel system
what pump what injectors are u using . what type of fuel pressure is needed
will the stock intake hold the boost.and if you have any other info that will help
thanks








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bderlan

x2,i know a member on here did this just wondering what its gonna take

abri

pse help. i bought a lm7 castiron block. at the rear where one would find the engine no is the following no.cx1184968 or the last no could be a 6.what is strange is that this no. is made by a centre punch and not with the usual number punch. however on top and else where i found the following bar code , *10XJB 661 W990076029*.on the ecm serv no 09354896cwAf *486cwaf 919006837Q* HDW no.16220610 09374401 3558L25087.i tried for 4 months to solve this riddle.i would like to know what year 5.3l engine i have because i need to know how many teeth trigger wheel the ignition run on,what o2 sensors i need to get{ it came without} as well as the maf sensor{also without}.if i can i would like to cancel the back o2,maf and the vats. is there a bypass that can be build to do that.THANKS A LOT ABRI

gordonquixote

What kind of ballpark HP will a 6.0 truck engine with LS1 car stuff bolted on put out?

mac_z_28

iTrader: (4)

nice sticky randy, cant wait to put a post on the nova after its done on here... it'll be pretty sick - scott

24d4life

wondering where you live looking for a motor for my 1990 240sx cars already beefy just needs power have 300zx brakes and j30 lsd saw that 5.3 was way to go and sounded like you were the man

MUD MANIAC 44

thanks on the info i read somewhere some thing about a pedal kit i might have to buy for the throttle is this true? thanks