engine rebuild - ZR-1 Net Registry Forums

crazyb1 · 08-20-2006

If you've got bad rings and need to rebuild the motor, can you replace the liners and pistons, matched of course, or do you have to go to a larger cu (368)?

tomtom72 · 08-21-2006

Here is a ttt for ya because I don't know enough to answer the Q. I would think that if the liners & pistons are not damaged as in scuffed up why wouldn't a ring r&r fix an oil comsumption or a lack of compression problem?

Equally, a tear down to that degree would be the ideal time to do a larger inch motor also....but the cost would be substantial as those are custom parts?

Tom

ZR1 MK · 08-21-2006

The Nickasil liners shouldnt be reconditioned. Even if you do the liners, it takes special expensive equipment that can compromise the coating. Thats why the 368 is done. You can just install new rings, but that is low quality option and not advisable. Theres too much work and expense to take a chance they wont set properly.
What is the mileage on your car?
If you are interested, I have a matched rotating assembly set for sale.

08-21-2006

I wouldn't even consider a stock rebuild. Upping the ante to at least a 368 will make things a lot easier. You'll spend roughly the same amount of money, so might as well get some new power to go with it.

crazyb1 · 08-21-2006

Thanks for the input. About how much $$ for a 368 rebuild? The car already has P/P intake, plenum, headers, B & B.

1990 quasar blue · 08-21-2006

http://www.zr1specialist.com/HAT%20W...20upgrades.htm

http://www.sgvette.com/550hp.htm

08-20-2006	#1
crazyb1 Join Date: Jul 2005 Location: Star, Idaho Posts: 56	engine rebuild If you've got bad rings and need to rebuild the motor, can you replace the liners and pistons, matched of course, or do you have to go to a larger cu (368)? __________________ '90 ZR-1 Red/Red #1239 SGC P/P Plenum/IH, Headers, B & B, Hurst, K & N "Red RocketShip!"

08-21-2006	#2
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: engine rebuild Here is a ttt for ya because I don't know enough to answer the Q. I would think that if the liners & pistons are not damaged as in scuffed up why wouldn't a ring r&r fix an oil comsumption or a lack of compression problem? Equally, a tear down to that degree would be the ideal time to do a larger inch motor also....but the cost would be substantial as those are custom parts? Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

08-21-2006	#3
ZR1 MK Join Date: Aug 2005 Location: NY Posts: 143	Re: engine rebuild The Nickasil liners shouldnt be reconditioned. Even if you do the liners, it takes special expensive equipment that can compromise the coating. Thats why the 368 is done. You can just install new rings, but that is low quality option and not advisable. Theres too much work and expense to take a chance they wont set properly. What is the mileage on your car? If you are interested, I have a matched rotating assembly set for sale. __________________ Mike 427 cu in LT5 [URL="http://zr1mk.weebly.com"]http://zr1mk.weebly.com[/URL]

08-21-2006	#4
Jeffvette Guest Posts: n/a	Re: engine rebuild I wouldn't even consider a stock rebuild. Upping the ante to at least a 368 will make things a lot easier. You'll spend roughly the same amount of money, so might as well get some new power to go with it.

08-21-2006	#5
crazyb1 Join Date: Jul 2005 Location: Star, Idaho Posts: 56	Re: engine rebuild Thanks for the input. About how much $$ for a 368 rebuild? The car already has P/P intake, plenum, headers, B & B. __________________ '90 ZR-1 Red/Red #1239 SGC P/P Plenum/IH, Headers, B & B, Hurst, K & N "Red RocketShip!"

08-21-2006	#6
1990 quasar blue Join Date: Feb 2004 Location: Ma Posts: 404	Re: engine rebuild http://www.zr1specialist.com/HAT%20W...20upgrades.htm http://www.sgvette.com/550hp.htm __________________ 1990 ZR1 #2574 Medium Quasar Blue Metallic 1 of 19

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