'89 Pre-production motor for sale at the CF - ZR-1 Net Registry Forums

tccrab · 02-04-2016

Saw this on the CF, surely someone here would want to save a pre-production LT5 (paging Brett, Mr. Brett, please pick up any white telephone...).
He thinks it's a '93 but the plenum says otherwise.
It seems to be in good shape and other than the air horn it all looks to be there.
http://www.corvetteforum.com/forums/...-for-sale.html

'Crabs

Dynomite · 02-04-2016

Great Find Crabs

The TB Coolant Pipes are hard lines all the way (Pre-Production) and the Cam Cover Vent Tubes is missing drivers side.
Oil Cap and Air Horn are missing.
PCV Hard Line on Drivers Side is missing (No Ports on Plenum for that line which is Pre-Production).
MAP Bracket looks bent down.
But........Mint Condition Pre-Production LT5 Engine
I am not sure how it is called a 93' when in fact it is Pre-Production?

-=Jeff=- · 02-04-2016

It is possible he just has a preproduction Plenum and the rest of the motor still could be 1993....

Dynomite · 02-04-2016

Quote:

Originally Posted by -=Jeff=-

It is possible he just has a preproduction Plenum and the rest of the motor still could be 1993....

That would explain this "93' LT5" looking like a Pre-Production

A26B · 02-04-2016

The Mercury Marine # would probably be in the era represented by the seller, according to my mini database. 88 pre-production, active ride suspension or 89 model. It is not a production engine for 90 or later.

02-04-2016	#1
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,645	'89 Pre-production motor for sale at the CF Saw this on the CF, surely someone here would want to save a pre-production LT5 (paging Brett, Mr. Brett, please pick up any white telephone...). He thinks it's a '93 but the plenum says otherwise. It seems to be in good shape and other than the air horn it all looks to be there. http://www.corvetteforum.com/forums/...-for-sale.html 'Crabs __________________ TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B]

02-04-2016	#2
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,788	Mint Condition 89 Pre-production LT5 Great Find Crabs The TB Coolant Pipes are hard lines all the way (Pre-Production) and the Cam Cover Vent Tubes is missing drivers side. Oil Cap and Air Horn are missing. PCV Hard Line on Drivers Side is missing (No Ports on Plenum for that line which is Pre-Production). MAP Bracket looks bent down. But........Mint Condition Pre-Production LT5 Engine I am not sure how it is called a 93' when in fact it is Pre-Production? __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 02-04-2016 at 11:33 AM.

02-04-2016	#3
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,137	Re: '89 Pre-production motor for sale at the CF It is possible he just has a preproduction Plenum and the rest of the motor still could be 1993.... __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

02-04-2016	#5
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,376	Re: '89 Pre-production motor for sale at the CF The Mercury Marine # would probably be in the era represented by the seller, according to my mini database. 88 pre-production, active ride suspension or 89 model. It is not a production engine for 90 or later. __________________ 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.