What is "high mileage" on a LS1?

[LS1_911]

What is "high mileage" on a LS1? I am looking for a good LS1 to buildup some.

any input would be great.

thanks

[MonmouthCtyLS7]

All depends on how the car was treated...but id say somewhere around 140-150k is starting to get up there.

[supersick99z]

Well I have 104,000 with full bolt-ons and about to have a cam put in. They are suppose to hold up pretty well. Hope I don't jinx myself lol

[Ape Man]

I have 313,000KM 98 Trans Am 305hp version, runs like a top, pulls mirror-to mirror with buddys 35th SS 345SLP 35th Camaro. Bout to do cam/chain/pushrods/valvesprings/headers-cats-y/tune. Doesnt use ANY oil and runs balls out


In miles this would be :

194 489.183 miles

[streetassasin]

The car in my sig has around 110k and is anout to get hit with a 175-200 shot with heads and a cam, stock bottom end

[LS1_911]

I am looking at one with ~150,000 miles on it. before dropping it in what would be some suggestions to freshen it up? I was going to have the heads looked at and upgrade the intake. Put a new cam into it (still researching). I will have an electric water pump so no worries there.

[King Nothing]

i have 160K on mine and am going to do 241 heads with a 227/224 cam and a 3400 stall. i started having valve float around 80K and haven't fixed it yet since brand new heads are going on anyway. only thing i'd check is the fluids really: oil, coolant, tranny fluid and rear end fluids

[LS1_911]

Thanks for the information

[shtnfrds]

182K here and still pulls hard. no abnormal ticks, taps or knocks. at 200K everything will be swapped out tho.

[02ws666]

Originally Posted by King Nothing

i have 160K on mine and am going to do 241 heads with a 227/224 cam and a 3400 stall. i started having valve float around 80K and haven't fixed it yet since brand new heads are going on anyway. only thing i'd check is the fluids really: oil, coolant, tranny fluid and rear end fluids

dont you already have 241 heads??

[billymz28]

had a friend with 140 on the clock with a heads and cam running 11s .

[ShadowCat]

I only have 68k on my 2000 WS6. Of course, I have no mods really so at some point I will do something to the engine... doing the exhaust this weekend.

[jimbo98z]

140k on the motor. Everything behind the motor has already crapped out...

Score:
Motor: 3
Drivetrain: 0

[MonmouthCtyLS7]

Originally Posted by 02ws666

dont you already have 241 heads??

I think the 241's came in 01....theres really no differance from the 853's except for a slightly better design.

[Avaric3]

Originally Posted by MonmouthCtyLS7

I think the 241's came in 01....theres really no differance from the 853's except for a slightly better design.

he probly meant 243s the ls6 heads

[SOMbitch]

Originally Posted by jimbo98z

140k on the motor. Everything behind the motor has already crapped out...

Score:
Motor: 3
Drivetrain: 0

HAHA!

This is pretty typical. You should check out the whole drivetrain. The rear and tranny are both kinda weak in these cars....

[jimbo98z]

Originally Posted by SOMbitch

HAHA!

This is pretty typical. You should check out the whole drivetrain. The rear and tranny are both kinda weak in these cars....

Yep, hence built tranny (basically a stage 2 rebuild of sorts), chromoly driveshaft, and a 12-bolt. The 12-bolt is giving me troubles, but that's a whole other story...

[klujan13]

I got 135k on my LS1 and it runs like a champ!

[OUTLWZ]

I bought my car last May, in June it threw a rod...at start up one morning.

It had 81K on it. But I only owned the car for 3 weeks so I cant say how the car was driven by the last owner. The motor was clean internaly except for the rod dust and hole it put in the side of the block.

[smok'nZ]

anything over 100k imo is hi mileage on a modern hot rod