joelc

hey guys I was wondering if it was still good installing a heads and cam package at 103,000 miles or not.the heads will have a 59cc combustion chamber thanks

BIG_MIKE2005

iTrader: (116)

Thats when I did mine & I bumped my comphression up to 11:1 too. As long as your motor is well taken care of & looks to be in good shape before & after cracking it open, you should be fine. Mine still had the original cross hatching in the cylinders.

If your gonna do heads you might as well do a cam while you got it tore down, it'll take all of a extra 5 minutes with the heads off & lifters removed. Then you'll really notice the addition of the heads. I would say heads only is worth waiting till you wanna do a cam for the best results. Also your gonna want to at least pick up a set of LS7 lifters since they are onnly about $100.

Grimes

iTrader: (3)

As long as the motor is in good running condition now, go for it. You could do a compression test on all cylinders first if you were worried.

Also when you do the swap, change out lifters and the oil pump. Other than that, lots of ppl have had successful swaps with mileage like yours.

joelc

thanks everyone I'll just do a compression test but I'm sure it is in good condition those were mostly highway miles too.

Medic/Z28

iTrader: (9)

You should be okay. I did mine at 150,000 miles. The heads were great with NO sludge. Everything from the block up was replaced.

Brief Encounter

iTrader: (6)

dont bother with a compression test, instead go with a leak-down test.

This will tell u if your ring and possibly valve seats are doing. If you have more than say 10% leak-down, its better off to rebuild the whole motor and then do H/C.

smokeyrider05

iTrader: (9)

i did mine at 115k

zrocket_99

iTrader: (2)

Do it!!!!

RedRallyeZ

iTrader: (20)

collecting parts for H/C now, should be done in the next month, clock at 105,000. just planning on doing a leakdown test.

Shredder_Z28

iTrader: (2)

i put my cam in at 120k, put the heads on around 140k and ive got 174k on the motor now and it still runs like the day i bought it.. except it pulls a hell of a lot harder These motors, when well taken care of, can last forever it seems

5_02ls1

iTrader: (20)

done cam at 154k....lookin to doheads and bigger cam this spring.......i also spra a 150 shot.......

DVS99TRANS

iTrader: (7)

got 146,000 and doing mine REALLY soon Buddy of mine runs low 10's with his and has 160,000 on the stock bottom end other than ARP rod bolts.

wg871

iTrader: (15)

Just get it checked out first like everyone said. I think it should be okay.

FMX05

iTrader: (3)

I recently bought the car in my sig with 100k on it. Mods have been on for about 5k miles. It runs better than fine. Sucks having to explain the noise roller rockers make to all the rice guys though

5w20

iTrader: (21)

just do it!