h/c in a 100k motor?
h/c in a 100k motor? my '99 has just over 98,000 miles on it.i want to do heads and cam but was wondering what you guys thought about tearing into a high milage motor.if i do it i'll end up putting new oil pump,timing chain,h2o pump,and all new vavletrain.
do you think i should pull the motor and do a complete rebuild(didn't really want to spend that much) or just keep the stock bottom with the milage and go for the h/c swap?
like to hear from anyone that has done this.
thanks
do you think i should pull the motor and do a complete rebuild(didn't really want to spend that much) or just keep the stock bottom with the milage and go for the h/c swap?
like to hear from anyone that has done this.
thanks
Trending Topics
Teching In
Joined: Mar 2010
Posts: 42
Likes: 0
From: NH
Mine broke at 64k miles with a head and cam. And I've got a sbc 350 with 165k on it still running strong so who's to say for sure.
I say all bets are off when you mod a car. These engines are good but certainly not the most consistent or greatest built. Some have piston slap some dont, some make more power than others etc. There have been plenty of failures but thats not to say doing it will cause a failure.
Set a budget and then look at it again. A good head and cam will cost $2550-$2900 for AFR or TFS, then you need a tune and you should already have supporting mods.
Intake and headers be it shorties for Cali. You should replace the lifters while your there $135 for LS7's, timing chain $60?, oil pump $165, pushrods $108, head gaskets $80... thats 3k right there.. You could cheap out and go with bargain heads, but it wont be as quick as with better heads.
You could rebuild to a 383 for $3400 and have no questions at all about the next 100k miles.
Make a plan for your car. Set a goal and then make a plan to achieve it. Are you going to keep it for a while? Has it been beat on very much? How much power were you looking for?
I say all bets are off when you mod a car. These engines are good but certainly not the most consistent or greatest built. Some have piston slap some dont, some make more power than others etc. There have been plenty of failures but thats not to say doing it will cause a failure.
Set a budget and then look at it again. A good head and cam will cost $2550-$2900 for AFR or TFS, then you need a tune and you should already have supporting mods.
Intake and headers be it shorties for Cali. You should replace the lifters while your there $135 for LS7's, timing chain $60?, oil pump $165, pushrods $108, head gaskets $80... thats 3k right there.. You could cheap out and go with bargain heads, but it wont be as quick as with better heads.
You could rebuild to a 383 for $3400 and have no questions at all about the next 100k miles.
Make a plan for your car. Set a goal and then make a plan to achieve it. Are you going to keep it for a while? Has it been beat on very much? How much power were you looking for?
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I did mine at 104,000 miles. I've only put about 400 miles on the new setup so far, but the motor was checked out, compression tested, etc before we did the swap and it all checked out. So, we'll see how long it lasts... If it goes, it's just an excuse to go bigger and better.
I say go for it... doing this your already replacing part of your 100k mile motor with upgrades to the valve train like springs and such...
upgrade your lifters and pushrods while your in there...
at this point your only worry is your bottom end, block, and pistons... as long as you've done proper routine maintenance on the life of the car, then your most likely in safe hands. You'll be able to see what the piston walls and some of the internals look like when you pull the heads...
upgrade your lifters and pushrods while your in there...
at this point your only worry is your bottom end, block, and pistons... as long as you've done proper routine maintenance on the life of the car, then your most likely in safe hands. You'll be able to see what the piston walls and some of the internals look like when you pull the heads...
On The Tree
Joined: Mar 2005
Posts: 156
Likes: 0
From: South Jersey
did mine at 102k everything went ok, with one exception i would get either the trunnion in the stock rocker upgraded, or a set of aftermarket rockers if you are gonna run an aggressive cam with a heavy spring.
im replacing the rockers today pulled them last nite, one rocker **** half its needle bearings. Found 8 needle bearing on the drainplug last time i change the oil. only found 2 up in the head, maybe ill find the other 20 when i change the oil again
im replacing the rockers today pulled them last nite, one rocker **** half its needle bearings. Found 8 needle bearing on the drainplug last time i change the oil. only found 2 up in the head, maybe ill find the other 20 when i change the oil again
Change the rod bolts in you '98 if you're planning on spinning the motor over 6500. I wish I'd have done that in my car. It'd still be running today if I had just done that minor thing. The performance I got was unbelievable though (10.7 @ 126) and I had 130K miles when I did the h/c swap.