all, i bought this engine a several weeks back from a guy who had already disposed of most of the truck. My issue is i dont know what year motor this is? supposedly this is a 2003 motor, can anybody tell what years this engine came in ? What is unique to this thing is the square fuel rails can anyone identify what year and what type of truck/van/? this engine came out of?
Thanks.
get a pic of the casting numbers on the block and heads also a pic of front with accessories if it came with them...it would help alot in identifying it
06 silverado CC Volant CAI/ Corsa Sport exhaust
dynatech supermaxx headers/cats
LPE GT2-3 cam/ Comp 918's/ Rods
Eaton LSD 3.73's
IAT Shocks
DANNY TRANNY w/2800 TCS billet verter
275HP and 293TQ Pre Cam
314HP and 303TQ post cam
Intakes will swap out on a bunch of dif motors. Looks like an LS2 car intake. no telling with out looking at the numbers on the block.
99RCSB Broke because I wasted thousands and thousands of dollars on my truck.
Oh and welcome to the site.
99RCSB Broke because I wasted thousands and thousands of dollars on my truck.
well ,my 03 doesnt have those sqare rails,or my o7 motor,but the funny thing is i have a wrecked z71 sub,and it does have those rails.the sub is a 6.0.Im not sure the rails help identify it tho.If you look on the block itll tell you if its a 6.0 and the year.
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
Looks like a car intake with returnless flex fuel truck rails.
I forgot to mention its a LS1 intake i swaped out the original truck intake had the Vortec cover on top. The block did not have much on the front only a standard powerstering pump and bracket for the alternator which sits high on the driver side. The Block has 5.3 4.8 stamped on it. I have not removed the heads so i cannot get to the casting numbers. what year is your Z71 Sub? also is it a flex fuel vehicle?
do you know what years the flex fuel rails are used on?Originally Posted by GasGuzzler
Look at the front of the outboard side of the passenger head for the three (or four) digit number that tells the casting. Flex fuel is capable of using up to 85% ethanol.
Flex fuel on the full size trucks dates back to 2002.
Here's a list of Flex Fuel applications.
The only E85 compatible vehicles produced by General Motors are:
• 2000-2002 S-Series pickups with 2.2L (VIN 5- RPO L43)
• 2002-2005 full-size pickups and utilities with 5.3L (VIN Z -- L59)
• 2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe with 5.3L (VIN Z -- RPO L59)
• 2006 Chevrolet Impala, Monte Carlo with 3.5L (VIN K -- RPO LZE)
• 2006 GMC Sierra, Yukon, Yukon XL with 5.3L (VIN Z -- RPO L59)
• 2007 Chevrolet Express with 5.3L (VIN Z -- RPO L59)
• 2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe with 5.3L (VINs 0, 3 -- RPOs LMG, LC9)
• 2007 GMC Savana with 5.3L (VIN Z -- RPO L59)
• 2007 GMC Sierra, Yukon, Yukon XL with 5.3L (VINs 0, 3 -- RPOs LMG, LC9)
• 2007 Chevrolet Impala, Monte Carlo with 3.5L (VIN K -- RPO LZE)
• 2007 Saturn Relay, Buick Terraza, Chevrolet Uplander, Pontiac Montana SV6 (Canada Only) with 3.9L (VIN W -- RPO LGD)
• 2008 Chevrolet Impala with 3.5L (VIN K -- RPO LZE) and 3.9L (VIN 1- RPO LZG)
• 2008 Pontiac Montana SV6, Chevrolet Uplander 3.9L (VIN W -- RPO LGD)
• 2008 Chevrolet Express, GMC Savana with 5.3L (VIN 4 -- RPO LMF)
• 2008 Chevrolet Avalanche, Suburban, Silverado, GMC Yukon, Sierra with 5.3L (VIN 3 -- RPO LC9)
• 2008 Chevrolet Avalanche, Suburban, Silverado, Tahoe, GMC Yukon, Yukon XL, Sierra with 5.3L (VIN 0 -- RPO LMG)
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