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Old 07-31-2019   #36
Paul Workman
 
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Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
Default Re: Getting Ready to buy a ZR-1

Quote:
Originally Posted by 32valvZ View Post
Might be high miles in your opinion.... but 59k miles on an LT-5 is pretty minimal....so long as the use of the car was overall normal.
I agree.

60k miles and the LT5 is just getting broken in. Marc Haibeck showed me an engine with 170k on it that was used as a track car. It came in to be "freshened up"; new bearings, rings, etc. According to Marc, it had some wear, of course, but the bearings, sleeves, rings, etc. were still in spec.

It goes back to LOTUS's design and Merc Marine's credit for building an engine built to last in competition. Again....NOTHING about the SBC can be attached to the LT5: not parts, and certainly not wear characteristics, apparently.
It (the LT5) is a completely different animal. Forget everything you know about SBCs, wear and endurance characteristics, etc., when considering the LT5. They don't apply. The LT5 motor is a "clean slate": a complete "do-over", far as V8 design goes...which is ONE of its more intriguing aspects!!
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90 #1202
"FBI" top end ported & relieved
Cam timing by "Pete the Greek"
Sans secondaries
Chip & dyno tuning by Haibeck Automotive
SW headers, X-pipe, MF muffs

Former Secretary, ZR-1 Net Registry

Last edited by Paul Workman; 07-31-2019 at 07:44 AM.
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