New to ls engines
#1
New to ls engines
I just bought a used lq4 engine and tore it down to bare block. Besides a lot of carbon buildup on the piston tops it seems to be pretty good! crank looks good no obvious signs of extreme wear of spun bearings. The cam bearings do however look pretty nasty though I was wondering if they generally look dirtier or not and also is there anything in particular that i should check out before I proceed to build this thing?
#2
Sorry I just realized I didnt specify I will be having the normal machine work done and probably gonna get some l92 heads and go back together with flat top lq9 style pistons. This is going in a c3 corvette as time and funds allow.
#4
Absolutely on the new bolts and such I will probably be running a 4L80e for trans undecided yet on the efi vs carb dilemma carb is definitely a little easier on a person who is not familiar with the electrons but efi gets way better mileage and is less hassle after it's done.
#5
#7
TECH Apprentice
iTrader: (21)
I am wrapping up my build. I bought an lq9 with 200,000 miles. When I tore it down, it still had cross hatches on the cylinder walls. I had it hot tanked, bored and honed to .030 along with new cam bearings. I didnt specify anything on the outside block so when I got it back, it needed some wire wheel work on the exterior. If your shooting for N/A with no spray you can use speed pro pistons. I bought mine from summit racing for $350 including rings. The machine shop said they were not close to being balanced and took a little work to balance the whole set. I also used some stock l92 heads.
I havent had it dyno'd yet but it runs good on the base tune. They make easy stand alone harnesses.
I havent had it dyno'd yet but it runs good on the base tune. They make easy stand alone harnesses.
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#8
Ya this lq4 had a bunch of miles judging by buildup and such but the bores are surprisingly clean can still see cross hatching. I am thinking newer lq9 rods because they are more heavy duty and will Probably go back with the flat tops since it will not be a boost motor.
#10
TECH Fanatic
Ya this lq4 had a bunch of miles judging by buildup and such but the bores are surprisingly clean can still see cross hatching. I am thinking newer lq9 rods because they are more heavy duty and will Probably go back with the flat tops since it will not be a boost motor.
#13
TECH Fanatic
I think I've seen a Dominator intake but not sure. I do know they make an adapter to put a standard square bore carb on a dominator intake, You can just flip the adapter over and use it the oppisite way.
#14
I know they make adapters but hate to plan on that fitting under the hood of my c3 and then find out that it won't fit later on and have to revamp the thing. Any c3 swappers use a dominator??
#15
8 Second Club
iTrader: (30)
I just saw a dominator on the GFORCE1320 Engineering GTO, google him and call to see what intake he's using.
On your cam bearings, I've been into 4 or 5 motors and the cam bearings always look horrendous. Luckily they are cheap. Your 2004 motor was a crossover year for cam bearing change, so you'll have to drive them out and measure the front or rear diameter to know which you need..
On your cam bearings, I've been into 4 or 5 motors and the cam bearings always look horrendous. Luckily they are cheap. Your 2004 motor was a crossover year for cam bearing change, so you'll have to drive them out and measure the front or rear diameter to know which you need..