ZO6 Cylinder Head
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From: Volo, Illinois
ZO6 Cylinder Head
I have 97 C5 fully stock engine. I have opportunity to buy 243 heads from 02 ZO6 with 37k miles on the heads.seller will include trick flow springs. My question is how much is the used 243 zo6 heads going for? I can get the heads for $275- Im pretty sure that's a killer price???
will this 243 heads fit direct on my engine?
What else do i need to install 243 heads on my engine?
Will my old cylinder head covers fit the zo6 heads? Can i reuse the old cylinder head bolts or do i have to buy new bolts if yes where can i get the new bolts from and brand name and part number will be appreciated. Anything else i need I'm forgetting that i need?
I plan to install LS6 intake manifold which i plan to puchare later install it same time with the ZO6 heads.
will this 243 heads fit direct on my engine?
What else do i need to install 243 heads on my engine?
Will my old cylinder head covers fit the zo6 heads? Can i reuse the old cylinder head bolts or do i have to buy new bolts if yes where can i get the new bolts from and brand name and part number will be appreciated. Anything else i need I'm forgetting that i need?
I plan to install LS6 intake manifold which i plan to puchare later install it same time with the ZO6 heads.
Last edited by 1997 C5; Apr 12, 2020 at 09:17 PM.
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I paid 300 for under 50k miles 243 heads about a year and a half ago. I also did a full LS6 top end if you will on my 97.
You will need new center bolt valve covers and the coil pack bracket and harness off of a 99 or newer car.
Of course highly recommend the LS6 intake as well as you know.
To take advantage of all these good parts you will need to re tune the car.
Might want to consider a cam change and long tubes at the same time. If you don't want to do a large cam I would suggest finding a stock cam from an 02-04 LS6.
You will need new center bolt valve covers and the coil pack bracket and harness off of a 99 or newer car.
Of course highly recommend the LS6 intake as well as you know.
To take advantage of all these good parts you will need to re tune the car.
Might want to consider a cam change and long tubes at the same time. If you don't want to do a large cam I would suggest finding a stock cam from an 02-04 LS6.
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I paid 300 for under 50k miles 243 heads about a year and a half ago. I also did a full LS6 top end if you will on my 97.
You will need new center bolt valve covers and the coil pack bracket and harness off of a 99 or newer car.
Of course highly recommend the LS6 intake as well as you know.
To take advantage of all these good parts you will need to re tune the car.
Might want to consider a cam change and long tubes at the same time. If you don't want to do a large cam I would suggest finding a stock cam from an 02-04 LS6.
You will need new center bolt valve covers and the coil pack bracket and harness off of a 99 or newer car.
Of course highly recommend the LS6 intake as well as you know.
To take advantage of all these good parts you will need to re tune the car.
Might want to consider a cam change and long tubes at the same time. If you don't want to do a large cam I would suggest finding a stock cam from an 02-04 LS6.
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You can break off the ribs and sand down flush to surface will clear the coolant pipes.
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The heads add the potential for flow and power. To take advantage of that potential requires a cam. 243 heads add compression and some increased flow, as would a LS-6 intake manifold, but it's a considerable amount of work for just those gains. Even if you add Z06 heads, Z06 intake, AND a Z06 cam AND a new tune you gain 45 HP -- 345 stock LS-1 to 405 LS-6. Maybe a bit more since it would be a custom tune. Without the cam, the heads and intake have to add less than 45 HP, and heads alone even less.
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I wouldn't bother with a Z06 stock cam. With the work involved in pulling the cam (and harmonic balancer - better replace that while you're at it), you'd be leaving a whole lot on the table.
If you're that far into the car, call a cam manufacturer like Texas Speed or Brian Tooley Racing and get an off-the-shelf cam or custom grind for a couple dollars more. You can buy a whole cam kit that will give you cam, springs that are matched to what you're going to put in, new timing chain, gaskets, oil pump, and lifters.
If you're that far into the car, call a cam manufacturer like Texas Speed or Brian Tooley Racing and get an off-the-shelf cam or custom grind for a couple dollars more. You can buy a whole cam kit that will give you cam, springs that are matched to what you're going to put in, new timing chain, gaskets, oil pump, and lifters.
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I wouldn't bother with a Z06 stock cam. With the work involved in pulling the cam (and harmonic balancer - better replace that while you're at it), you'd be leaving a whole lot on the table.
If you're that far into the car, call a cam manufacturer like Texas Speed or Brian Tooley Racing and get an off-the-shelf cam or custom grind for a couple dollars more. You can buy a whole cam kit that will give you cam, springs that are matched to what you're going to put in, new timing chain, gaskets, oil pump, and lifters.
If you're that far into the car, call a cam manufacturer like Texas Speed or Brian Tooley Racing and get an off-the-shelf cam or custom grind for a couple dollars more. You can buy a whole cam kit that will give you cam, springs that are matched to what you're going to put in, new timing chain, gaskets, oil pump, and lifters.
While this is absolutely correct you have to remember that not everyone likes a lumpy cam or a car that shakes at idle. Also speaking from experience getting the idle to work perfectly on a 1997 PCM can be a serious pain in the *** with a cam swap. That is speaking from experience. Like I said though, I agree and always run aftermarket cams. Just might not be for the OP.
The Z06 cam makes great power for a factory cam as long as it's not from an 01.
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While this is absolutely correct you have to remember that not everyone likes a lumpy cam or a car that shakes at idle. Also speaking from experience getting the idle to work perfectly on a 1997 PCM can be a serious pain in the *** with a cam swap. That is speaking from experience. Like I said though, I agree and always run aftermarket cams. Just might not be for the OP.
The Z06 cam makes great power for a factory cam as long as it's not from an 01.
The Z06 cam makes great power for a factory cam as long as it's not from an 01.
Can't speak to anything on the tuning side though - I have a guy for that. lol
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Id do like a 228R cam...it is a really nice cam for the LS1. Talk to Texas Speed and tell them what you are doing and they will guide ya on cams. You will need new lifters, push rods, lifter buckets, front main seal, might as well do a new balancer while there, balancer bolt, maybe a new front cover seal, oil pressure sending unit (might as well), new head bolts (fel-pro brand are decent priced), head gaskets (multi layered steel), timing chain, oil pump (high volume), cam bolts, maybe add the melling timing chain damper, the valve covers/bolts/coil brackets/harness, water pump gaskets, might as well add new belts and pulleys, throttle body coolant bypass, spark plugs, might as well add new PVC stuff. Of course coolant and oil with filter.
prob missing stuff still. A quality cam kit will come with a lot of those cam install related items.
Ebay stores and Rock Auto for some of the regular maintenance stuff
prob missing stuff still. A quality cam kit will come with a lot of those cam install related items.
Ebay stores and Rock Auto for some of the regular maintenance stuff
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St. Jude Donor '20-'21-'22-'23-'24
Id do like a 228R cam...it is a really nice cam for the LS1. Talk to Texas Speed and tell them what you are doing and they will guide ya on cams. You will need new lifters, push rods, lifter buckets, front main seal, might as well do a new balancer while there, balancer bolt, maybe a new front cover seal, oil pressure sending unit (might as well), new head bolts (fel-pro brand are decent priced), head gaskets (multi layered steel), timing chain, oil pump (high volume), cam bolts, maybe add the melling timing chain damper, the valve covers/bolts/coil brackets/harness, water pump gaskets, might as well add new belts and pulleys, throttle body coolant bypass, spark plugs, might as well add new PVC stuff. Of course coolant and oil with filter.
prob missing stuff still. A quality cam kit will come with a lot of those cam install related items.
Ebay stores and Rock Auto for some of the regular maintenance stuff
prob missing stuff still. A quality cam kit will come with a lot of those cam install related items.
Ebay stores and Rock Auto for some of the regular maintenance stuff
Drifting
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From: Morristown, TN