150K...got some questions
05-15-2007, 04:41 PM
#1
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150K...got some questions First off, I've got a 98 Z28. Engine's got 150K on it. I recently bought some used parts to go on it...Hot Cam, heads, Harland Sharp 1.8's, and hardened pushrods. My dad, being a bit of a pessimist says that I'll unravel the engine in short order once I put the parts on it. I can definitely see his point, but what are my options...on a budget, mind you...to make the engine last as long as possible? I've seen rod bolts mentioned being as I have a 98. I've also got a new ported oil pump on the list of things to buy, as well as a new timing set. Car will be a weekend toy, with an occasional track day (maybe once or twice a year).
05-15-2007, 05:12 PM
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Dont dawg on your car everwere and you will probaly be ok, 150k is alot of miles on a ls1, even if it was babied for all them. Thats alot of friction, heat and metal on metal action. Bolt them on there and have fun while it last! may last a week may last a decade! If It Unravals..knit it back together 
ps. my 99 has 120k miles and I give her hell with nitrous almost every weekend and still running the stock bottom. GM Built a hell of a motor for our cars. theyll take a beating and keep on ticking
ps. my 99 has 120k miles and I give her hell with nitrous almost every weekend and still running the stock bottom. GM Built a hell of a motor for our cars. theyll take a beating and keep on ticking
05-16-2007, 12:01 PM
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Before doing any mods to the engine, I would first perform a compression and leakdown test of the motor to see what your working with. It's makes no sense to throw $$ at a motor that has high leakdown or low compression on a few cyls. My $.02
05-16-2007, 12:18 PM
#7
Go find an Iron 6.0 out of a junkyard, preferably an LQ9 out of an Escalade, but any old LQ4 from a 2001 or newer 2500HD will work... Have that on standby in the garage...And put a billion shot on yours to really finish it off good, and have a lot of fun watching it throw rod bolts and twisting pushrods.
No seriously, 6.0s are cheap, they fit just like the LS1 did, and they have a LOT more torque. Not to mention that with the new $800(pair) L92 heads and $500 L76 intake combo (manifold, rails, injectors, TB) from chevy you can really crank out some serious power. But, to play that game you need a 4" bore...hince the 6.0
I wonder if anyone out there has made their first mod a 6.0? Not a K&N or a catback or headers or a tune....but a freakin LQx!!! Do it man...
No seriously, 6.0s are cheap, they fit just like the LS1 did, and they have a LOT more torque. Not to mention that with the new $800(pair) L92 heads and $500 L76 intake combo (manifold, rails, injectors, TB) from chevy you can really crank out some serious power. But, to play that game you need a 4" bore...hince the 6.0
I wonder if anyone out there has made their first mod a 6.0? Not a K&N or a catback or headers or a tune....but a freakin LQx!!! Do it man...
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05-16-2007, 09:05 PM
#9
Originally Posted by KurtRardin
Go find an Iron 6.0 out of a junkyard, preferably an LQ9 out of an Escalade, but any old LQ4 from a 2001 or newer 2500HD will work... Have that on standby in the garage...And put a billion shot on yours to really finish it off good, and have a lot of fun watching it throw rod bolts and twisting pushrods.
I have thought REAL long and good about holding off on H/C and just picking up a 6.0 and some L92/L76 combo... Junkyard 6Liter, gotta love it
-J
05-16-2007, 09:20 PM
#10
we all remember the car craft article where they made 550hp with an LQ9 (flat tops) l92 heads, a 228/230 cam, and a holley 850....and thats all folks. Might I also mention the 485ft/lbs....or the 400ft/lbs at 2000rpms. Imagine what a Trex or giant or MS4 would do with that bottom end and those heads...mmm Oh yeah, the budget factor is in there too. Lets call it a $1000 engine, with say the SLP non milled kit (heads, intake, rails, injectors, elec. TB, Rockers, pedestals, cable bracket...every thing you need) for what..$1600, then a 90mm tb (sell the elec TB), a good cam for $400, and some pushrods and all the gaskets. Someone whose done it correct me, but could you figure this gm junkyard monster could be put together for under $4k?
You would make so much power that your 10bolt would spit teeth and bolts out just by closing the hood too hard.
You would make so much power that your 10bolt would spit teeth and bolts out just by closing the hood too hard.
05-16-2007, 09:27 PM
#12
Heck they made 485 hp with a STOCK LQ9, a hotcam, LS6 springs, and a holley 750!
Sorry to hijack your thread though man. I just thought I should plant the 6.0 seed in as many peoples minds as I can. It looks cheap and freakin awesome. Probably the route that I will take.
But yeah seriously, (cough) I second the seafoam and oil change
Sorry to hijack your thread though man. I just thought I should plant the 6.0 seed in as many peoples minds as I can. It looks cheap and freakin awesome. Probably the route that I will take.
But yeah seriously, (cough) I second the seafoam and oil change
