New here : ZR1/LT5 questions - ZR-1 Net Registry Forums

09-22-2011

I'm going to have to replace an engine in a C3 that was destroyed (right, i see you guys already thinking). Anyway to put a long story short, i stumbled on the remains of an LT5 that was taken out of parted out ZR1. Engine was overheated to the extend that pieces were torn out of the cylinder walls.

I didn't ask more about it, since i figured that parts availability would be limited or very expensive.

Engine could be had for cheap. I don't think the ecu and cables are still there. I do have a aftermarket ecu that i think i could setup to work with it.

This got me thinking of maybe a rebuild, since i read that the cylinder sleeves can be swapped out.

Any input on that.

BTW : my knowledge on these engines is limited.

Thanks

Yves

A26B · 09-22-2011

Welcome to the ZR-1 Net Registry Forum!

The sleeves can be replaced. If it was overheated to that extent, the damage could also extend to the cylinder heads. Overhauling an LT5 engine without having LT5 experience can be an expensive learning process.

You might consider buying the engine, if it can be had for cheap, then tear it down and inspect everything to see what is still good so you can prepare a shopping list for what would be needed to fix it. Then, if you decide not to repair the engine, salvaging the good parts would probably get your money back.

You have come to the right place to seek information. If you decide to proceed with the engine, posting photos and asking questions here will be your best choice.

If you want to shop for parts to see what things cost, I have new & used LT5 parts for sale that will give you an idea of cost. Here's a link to my website. You can contact me directly with any questions if you like.
www.jerrysgaskets.com

WB9MCW · 09-22-2011

Found this info for you on C3 with LT-5 --

http://www.digitalcorvettes.com/foru...d.php?t=108460

http://ls1tech.com/forums/lt1-lt4-mo...l-breakin.html

93 ZR1 Barcelona · 09-29-2011

Hello Belgian...

Can you post some pictures of this engine?

And what do you mean with

"overheated to the extend that pieces were torn out of the cylinder walls"

GOLDCYLON · 09-29-2011

Welcome aboard. You made it over here.

GOLDCYLON · 09-29-2011

Quote:

Originally Posted by 93 ZR1 Barcelona

Hello Belgian...

Can you post some pictures of this engine?

And what do you mean with

"overheated to the extend that pieces were torn out of the cylinder walls"

The liners.

93 ZR1 Barcelona · 09-29-2011

You mean the Nikasil coating of the liners?

I thought he referred to the exterior of the cylinder block....

GOLDCYLON · 09-29-2011

Quote:

Originally Posted by 93 ZR1 Barcelona

You mean the Nikasil coating of the liners?

I thought he referred to the exterior of the cylinder block....

He went into a litle more detail over at C orvette Forum. He meant the liners were compromised beyond the coating. I was concerned about the rest of the engine being warped to include the heads. A few other voiced the same opinion. But he states the engine can be had for next to nothing. So who knows

09-22-2011	#1
Belgian1979 Guest Posts: n/a	New here : ZR1/LT5 questions I'm going to have to replace an engine in a C3 that was destroyed (right, i see you guys already thinking). Anyway to put a long story short, i stumbled on the remains of an LT5 that was taken out of parted out ZR1. Engine was overheated to the extend that pieces were torn out of the cylinder walls. I didn't ask more about it, since i figured that parts availability would be limited or very expensive. Engine could be had for cheap. I don't think the ecu and cables are still there. I do have a aftermarket ecu that i think i could setup to work with it. This got me thinking of maybe a rebuild, since i read that the cylinder sleeves can be swapped out. Any input on that. BTW : my knowledge on these engines is limited. Thanks Yves

09-22-2011	#2
A26B Join Date: Dec 2003 Location: Arcadia, OK Posts: 3,392	Re: New here : ZR1/LT5 questions Welcome to the ZR-1 Net Registry Forum! The sleeves can be replaced. If it was overheated to that extent, the damage could also extend to the cylinder heads. Overhauling an LT5 engine without having LT5 experience can be an expensive learning process. You might consider buying the engine, if it can be had for cheap, then tear it down and inspect everything to see what is still good so you can prepare a shopping list for what would be needed to fix it. Then, if you decide not to repair the engine, salvaging the good parts would probably get your money back. You have come to the right place to seek information. If you decide to proceed with the engine, posting photos and asking questions here will be your best choice. If you want to shop for parts to see what things cost, I have new & used LT5 parts for sale that will give you an idea of cost. Here's a link to my website. You can contact me directly with any questions if you like. www.jerrysgaskets.com __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.

09-22-2011	#3
WB9MCW Join Date: Dec 2003 Location: McHenry, Il. Posts: 6,584	Re: New here : ZR1/LT5 questions Found this info for you on C3 with LT-5 -- http://www.digitalcorvettes.com/foru...d.php?t=108460 http://ls1tech.com/forums/lt1-lt4-mo...l-breakin.html

09-29-2011	#4
93 ZR1 Barcelona Join Date: Aug 2007 Location: Barcelona, SPAIN Posts: 41	Re: New here : ZR1/LT5 questions Hello Belgian... Can you post some pictures of this engine? And what do you mean with "overheated to the extend that pieces were torn out of the cylinder walls"

09-29-2011	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,120	Re: New here : ZR1/LT5 questions Welcome aboard. You made it over here. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

09-29-2011	#7
93 ZR1 Barcelona Join Date: Aug 2007 Location: Barcelona, SPAIN Posts: 41	Re: New here : ZR1/LT5 questions You mean the Nikasil coating of the liners? I thought he referred to the exterior of the cylinder block....